A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went...

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SPE EXTRUSION DIVISION NEWSLETTER FALL 2015 VOLUME 40, ISSUE 2 Remembering ANTEC 2015 3 WWU SPE Student Chapter Five- Company Tour 13 Tech Tips: Calibrate Those Instruments 14 Extrusion Board Supports Seminar and Workshop in Columbia 17 Tech Tips: Melting 101 19 Shape Extrusion Topcon 6 Lew Erwin Scholarship Awarded 9 Ed Steward Scholarship Awarded 12 Tech Tips: Cleaning, Changing Twin-Screw Extruder Set 10 A Message From the Chair Old and New. We are almost finished with 2015 and on our way to facing 2016. My tenure as your Extrusion Division Chair has already reached the halfway mark and YES, I am having fun! So what’s the big deal about Old and New? I asked that question as I sat down to write this, and happened upon the two books pictured in my hands. The one on the left is the classic Processing of Thermoplastic Materials, edited by Dr. Ernest Bernhardt, while the book on the right is the soon to be classic Analyzing and Troubleshooting Single-Screw Extruders by Dr. Gregory Campbell and Dr. Mark Spalding. One Old, one New. One published two years ago; one published when I was two months’ old. Old and New, but a lot in common. Times change, but for the plastics processor some things are timeless: Making sense of what is happening in extruders; learning how to extrude more effectively; needing to troubleshoot the process. The authors themselves have much in common—members of SPE , and I am proud to say, all members of your Extrusion Division. Mark and Greg are still serving while Dr. Bernhardt served before my time. The Board of Directors of your Extrusion Division has been working hard to make one of SPE’s oldest divisions new again, and this will become apparent to our membership in the coming months. Previous newsletters have talked about our Young Professionals initiative. Our inaugural members certainly have brought energy and enthusiasm to the Board, which we will be building upon as we recruit more YPs this year. Look for our division logo to get a refresh and keep an eye on our division website and the Extrusion Wiki. Everything we are doing is for you, the membership of our Extrusion Division, so we want it to be relevant for YOU! The New Year will bring us to anotherANTEC; this one in Indianapolis. Your Extrusion Division will have an engaging technical program, combining the Old and New into several days of presentations. Look for the Old in such things as the tutorial sessions. On the New side of the ledger, we will have a session on Pharmaceutical and Hot Melt Extrusion. Best thing about ANTEC is renewing Old acquaintances and making New contacts. At ANTEC, please make time to introduce yourself to me and the other members of your Board. We want to hear what New things you would like to see your division and your Society do for you. David Anzini SPE Extrusion Division Chair, 2015-2016

Transcript of A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went...

Page 1: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER

FALL 2015VOLUME 40 ISSUE 2

Remembering ANTEC 2015

3

WWU SPE Student Chapter Five-Company Tour

13

Tech Tips Calibrate Those Instruments

14

Extrusion Board Supports Seminar and Workshop in Columbia

17

Tech Tips Melting 101 19

Shape Extrusion Topcon 6

Lew Erwin Scholarship Awarded

9

Ed Steward Scholarship Awarded

12

Tech Tips Cleaning Changing Twin-Screw Extruder Set

10

A Message From the Chair OldandNewWearealmostfinishedwith2015andonourwaytofacing2016MytenureasyourExtrusionDivisionChairhasalreadyreachedthehalfwaymarkandYESIamhavingfun SowhatrsquosthebigdealaboutOldandNewIaskedthatquestionasIsatdowntowritethisandhappeneduponthetwobookspicturedinmyhandsTheoneontheleftistheclassicProcessing of Thermoplastic MaterialseditedbyDrErnestBernhardtwhilethebookontherightisthesoontobeclassicAnalyzing and Troubleshooting Single-Screw ExtrudersbyDrGregoryCampbellandDrMarkSpaldingOneOldoneNewOnepublishedtwoyearsagoonepublishedwhenIwastwomonthsrsquoold OldandNewbutalotincommonTimeschangebutfortheplasticsprocessor

somethingsaretimelessMakingsenseofwhatishappeninginextruderslearninghowtoextrudemoreeffectivelyneedingtotroubleshoottheprocessTheauthorsthemselveshavemuchincommonmdashmembersofSPEandIamproudtosayallmembersofyourExtrusionDivisionMarkandGregarestillservingwhileDrBernhardtservedbeforemytime TheBoardofDirectorsofyourExtrusionDivisionhasbeenworkinghardtomakeoneofSPErsquosoldestdivisionsnewagainandthiswillbecomeapparenttoourmembershipinthecomingmonthsPreviousnewslettershavetalkedaboutourYoungProfessionalsinitiativeOurinauguralmemberscertainlyhavebroughtenergyandenthusiasmtotheBoardwhichwewillbebuildinguponaswerecruitmoreYPsthisyearLookforourdivisionlogotogetarefreshandkeepaneyeonourdivisionwebsiteandtheExtrusionWikiEverythingwearedoingisforyouthemembershipofourExtrusionDivisionsowewantittoberelevantforYOUTheNewYearwillbringustoanotherANTECthisoneinIndianapolisYourExtrusionDivisionwillhaveanengagingtechnicalprogramcombiningtheOldandNewintoseveraldaysofpresentationsLookfortheOldinsuchthingsasthetutorialsessionsOntheNewsideoftheledgerwewillhaveasessiononPharmaceuticalandHotMeltExtrusionBestthingaboutANTECisrenewingOldacquaintancesandmakingNewcontactsAtANTECpleasemaketimetointroduceyourselftomeandtheothermembersofyourBoardWewanttohearwhatNewthingsyouwouldliketoseeyourdivisionandyourSocietydoforyou

David AnziniSPE Extrusion Division Chair 2015-2016

SPE EXTRUSION DIVISION NEWSLETTER PAGE 2

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ThemonthshaveflownbyquicklysinceANTEC2015whichwasheldinlateMarchconcurrentwithNPEHereisthelistoftheSPEExtrusionDivisionaward-winnersthatarepresentedateveryANTECduringtheDivisionrsquoseveningreception

Distinguished Achievement AwardThisawardissponsoredbyTheExtrusionDivisiontohonorindividualswhohavemadesignificantcontributionstothedevelopmentandadvancementintheextrusionindustryasawhole

TheawardthisyearwaspresentedtoTimothy WomerofTWWomerandAssociatesWomerhasbeenSPEPresident(2006-2007)ExtrusionDivisionChairman(1999-2000)andhasbeeninvolvedinnumerousotherSPECommitteesIn2012TimwaselectedtothePlasticsHallofFameHeisafrequentauthoratANTECandotherconferencesandisanSPEFellowSPEHonoredServiceMemberandwasthepastrecipientoftheBruceMaddockAward

Bruce Maddock AwardAwardrecipientshavecontributedsignificantlytotheadvancementofsingle-screwextrusiontechnologyorassociatedprocessingtechnologybyprovidingexperimentalachievementsandunderstandingtothefundamentalsoftheprocessTheawardrecipientisselectedbyTheExtrusionDivisionBoardofDirectorsandissponsoredbyTheDowChemicalCompany

TheawardthisyearwaspresentedtoDr Ernest BernhardtwhowasoneoftheDuPontDreamTeamExtrusionResearchersinthe1950sOneofhismajorcontributionswastheassembly(editor)ofthebookProcessingofThermoplasticMaterialsThiswasoneofthefirstqualitybookstopublishonthesubject(1958)Hewasapioneerandinnovatorofprocessingforsingle-screwextrudersincludingvacuumextractionvalvedextrusionandinstrumentationHeisanSPEfellowandamemberofthePlasticsHallofFame

Remembering ANTEC 2015

Heinz Herrmann AwardAwardrecipientsaretohavecontributedsignificantlytotheadvancementoftwin-screwextrusiontechnologyThiscanbeaccomplishedthroughexperimentalortheoreticalachievementsthatprovideanunderstandingtothefundamentalsofprocessingmaterialintheextruderTheseexperimentscouldinclude(butnotlimitedto)workrelatingtosolidsconveyingmeltingmixingdevolatilizationandpumpingfunctionsoftwinscrewextrusion(TSE)TheHeinzHerrmannAwardissponsoredbyCoperionCorporation

TheawardthisyearwaspresentedtoDaniel TynananotheroftheDuPontDreamTeamExtrusionResearchersinthe1950sHehaspatentsonpolymerfinishingusingnovelthin-filmmeltreactorsoneofwhichwasacounterrotatingtwin-screwdeviceHeisaco-inventorofakeyDuPontpatentonaprocessfornylontougheninginvolvingstagingthefeedtoatwin-screwextruderSomeofhisimportantcontributionstoDuPontthatwerenotpublishedincludefundamentalsmodelingofTSETSEexperimentalvalidationandnewscrewdesigns

Heinz List AwardRecipientsaretohavecontributedsignificantlytotheadvancementofpolymerdevolatilizationdryingevaporationorreactivepolymerizationtechnologiespertainingtoextrusionprocessingTheHeinzListAwardissponsoredbyListUSAInc

Thisyearrsquosawardwaspresentedto Dr Costas TzoganakisUniversityofWaterlooChemicalEngineeringDrTzoganakiswashonoredforhisinnovativeresearchinreactiveextrusiontechnologiesThesetechnologiesincludenumerousreactivesystemsusingscrewextrudersincludingmodificationofLLDPEusingperoxidesPPmodificationusingperoxidesnitroxidesandsulfonylazidechemistries

Jack Barney Award TheJackBarneyAwardwasinitiatedbyWelexCorporationtohonorJackBarneythefounderofExtrusionDiesIndustriesTheawardistobepresentedtopersonswhohavemadeasignificantcontributiontothedevelopmentoftheflatsheetindustryTheircontributionscanbetechnicalorcommercialbutshouldhavevaluetotheindustryasawholeTheJackBarneyAwardissponsoredbyExtrusionDiesIndustries

SPE EXTRUSION DIVISION NEWSLETTER PAGE 4

ThisyearrsquosrecipientwasDoug DarrowpresidentofAlliedDiesDougiswellknowninnovatorandhehasbeeninstrumentalinsheetfor40+yearsHeinnovatedatBrownMachineDavisStandardGloucesterEDICloerenandnowhisowncompanyAllieddiesdesignsandmanufacturescustomdiesaswellasrelatedtoolingforplastictoforeignanddomesticprocessorsofslotdiecoatingextrusioncoatingandlaminatingcastfilmandsheetforindustrialmarketsaircraftappliancesautomotiveelectronicsandhousing

2014 ANTEC Best Paper AwardAMechanismforSolidBedBreakupinSingle-ScrewExtrudersndashSolidBedShapeChangeco-authoredbyDrGregoryACampbellCastleResearchJonesportMEandDrMarkASpaldingTheDowChemicalCompanyMidlandMich

Outstanding Service AwardThiswasgiventoKarenXiaoinrecognitionofherserviceasExtrusionDivisionBoardChair2014-2015andTechnicalProgramChair2013-2014

New SPE Honored Service MembersDuringtheawardsceremonytheExtrusionDivisionalsoannouncedthatlong-timeExtrusionBoardmembersJohn Wagner(left)ofCrescentAssociatesandDr Paul AndersenofCoperionCorpwerenamedSPEHonoredServiceMembers

SPE EXTRUSION DIVISION NEWSLETTER PAGE 5

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Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

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wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

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NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

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6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

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  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 2: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 2

SPE EXTRUSION DIVISION NEWSLETTER PAGE 3

ThemonthshaveflownbyquicklysinceANTEC2015whichwasheldinlateMarchconcurrentwithNPEHereisthelistoftheSPEExtrusionDivisionaward-winnersthatarepresentedateveryANTECduringtheDivisionrsquoseveningreception

Distinguished Achievement AwardThisawardissponsoredbyTheExtrusionDivisiontohonorindividualswhohavemadesignificantcontributionstothedevelopmentandadvancementintheextrusionindustryasawhole

TheawardthisyearwaspresentedtoTimothy WomerofTWWomerandAssociatesWomerhasbeenSPEPresident(2006-2007)ExtrusionDivisionChairman(1999-2000)andhasbeeninvolvedinnumerousotherSPECommitteesIn2012TimwaselectedtothePlasticsHallofFameHeisafrequentauthoratANTECandotherconferencesandisanSPEFellowSPEHonoredServiceMemberandwasthepastrecipientoftheBruceMaddockAward

Bruce Maddock AwardAwardrecipientshavecontributedsignificantlytotheadvancementofsingle-screwextrusiontechnologyorassociatedprocessingtechnologybyprovidingexperimentalachievementsandunderstandingtothefundamentalsoftheprocessTheawardrecipientisselectedbyTheExtrusionDivisionBoardofDirectorsandissponsoredbyTheDowChemicalCompany

TheawardthisyearwaspresentedtoDr Ernest BernhardtwhowasoneoftheDuPontDreamTeamExtrusionResearchersinthe1950sOneofhismajorcontributionswastheassembly(editor)ofthebookProcessingofThermoplasticMaterialsThiswasoneofthefirstqualitybookstopublishonthesubject(1958)Hewasapioneerandinnovatorofprocessingforsingle-screwextrudersincludingvacuumextractionvalvedextrusionandinstrumentationHeisanSPEfellowandamemberofthePlasticsHallofFame

Remembering ANTEC 2015

Heinz Herrmann AwardAwardrecipientsaretohavecontributedsignificantlytotheadvancementoftwin-screwextrusiontechnologyThiscanbeaccomplishedthroughexperimentalortheoreticalachievementsthatprovideanunderstandingtothefundamentalsofprocessingmaterialintheextruderTheseexperimentscouldinclude(butnotlimitedto)workrelatingtosolidsconveyingmeltingmixingdevolatilizationandpumpingfunctionsoftwinscrewextrusion(TSE)TheHeinzHerrmannAwardissponsoredbyCoperionCorporation

TheawardthisyearwaspresentedtoDaniel TynananotheroftheDuPontDreamTeamExtrusionResearchersinthe1950sHehaspatentsonpolymerfinishingusingnovelthin-filmmeltreactorsoneofwhichwasacounterrotatingtwin-screwdeviceHeisaco-inventorofakeyDuPontpatentonaprocessfornylontougheninginvolvingstagingthefeedtoatwin-screwextruderSomeofhisimportantcontributionstoDuPontthatwerenotpublishedincludefundamentalsmodelingofTSETSEexperimentalvalidationandnewscrewdesigns

Heinz List AwardRecipientsaretohavecontributedsignificantlytotheadvancementofpolymerdevolatilizationdryingevaporationorreactivepolymerizationtechnologiespertainingtoextrusionprocessingTheHeinzListAwardissponsoredbyListUSAInc

Thisyearrsquosawardwaspresentedto Dr Costas TzoganakisUniversityofWaterlooChemicalEngineeringDrTzoganakiswashonoredforhisinnovativeresearchinreactiveextrusiontechnologiesThesetechnologiesincludenumerousreactivesystemsusingscrewextrudersincludingmodificationofLLDPEusingperoxidesPPmodificationusingperoxidesnitroxidesandsulfonylazidechemistries

Jack Barney Award TheJackBarneyAwardwasinitiatedbyWelexCorporationtohonorJackBarneythefounderofExtrusionDiesIndustriesTheawardistobepresentedtopersonswhohavemadeasignificantcontributiontothedevelopmentoftheflatsheetindustryTheircontributionscanbetechnicalorcommercialbutshouldhavevaluetotheindustryasawholeTheJackBarneyAwardissponsoredbyExtrusionDiesIndustries

SPE EXTRUSION DIVISION NEWSLETTER PAGE 4

ThisyearrsquosrecipientwasDoug DarrowpresidentofAlliedDiesDougiswellknowninnovatorandhehasbeeninstrumentalinsheetfor40+yearsHeinnovatedatBrownMachineDavisStandardGloucesterEDICloerenandnowhisowncompanyAllieddiesdesignsandmanufacturescustomdiesaswellasrelatedtoolingforplastictoforeignanddomesticprocessorsofslotdiecoatingextrusioncoatingandlaminatingcastfilmandsheetforindustrialmarketsaircraftappliancesautomotiveelectronicsandhousing

2014 ANTEC Best Paper AwardAMechanismforSolidBedBreakupinSingle-ScrewExtrudersndashSolidBedShapeChangeco-authoredbyDrGregoryACampbellCastleResearchJonesportMEandDrMarkASpaldingTheDowChemicalCompanyMidlandMich

Outstanding Service AwardThiswasgiventoKarenXiaoinrecognitionofherserviceasExtrusionDivisionBoardChair2014-2015andTechnicalProgramChair2013-2014

New SPE Honored Service MembersDuringtheawardsceremonytheExtrusionDivisionalsoannouncedthatlong-timeExtrusionBoardmembersJohn Wagner(left)ofCrescentAssociatesandDr Paul AndersenofCoperionCorpwerenamedSPEHonoredServiceMembers

SPE EXTRUSION DIVISION NEWSLETTER PAGE 5

SPE EXTRUSION DIVISION NEWSLETTER PAGE 6

Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 3: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 3

ThemonthshaveflownbyquicklysinceANTEC2015whichwasheldinlateMarchconcurrentwithNPEHereisthelistoftheSPEExtrusionDivisionaward-winnersthatarepresentedateveryANTECduringtheDivisionrsquoseveningreception

Distinguished Achievement AwardThisawardissponsoredbyTheExtrusionDivisiontohonorindividualswhohavemadesignificantcontributionstothedevelopmentandadvancementintheextrusionindustryasawhole

TheawardthisyearwaspresentedtoTimothy WomerofTWWomerandAssociatesWomerhasbeenSPEPresident(2006-2007)ExtrusionDivisionChairman(1999-2000)andhasbeeninvolvedinnumerousotherSPECommitteesIn2012TimwaselectedtothePlasticsHallofFameHeisafrequentauthoratANTECandotherconferencesandisanSPEFellowSPEHonoredServiceMemberandwasthepastrecipientoftheBruceMaddockAward

Bruce Maddock AwardAwardrecipientshavecontributedsignificantlytotheadvancementofsingle-screwextrusiontechnologyorassociatedprocessingtechnologybyprovidingexperimentalachievementsandunderstandingtothefundamentalsoftheprocessTheawardrecipientisselectedbyTheExtrusionDivisionBoardofDirectorsandissponsoredbyTheDowChemicalCompany

TheawardthisyearwaspresentedtoDr Ernest BernhardtwhowasoneoftheDuPontDreamTeamExtrusionResearchersinthe1950sOneofhismajorcontributionswastheassembly(editor)ofthebookProcessingofThermoplasticMaterialsThiswasoneofthefirstqualitybookstopublishonthesubject(1958)Hewasapioneerandinnovatorofprocessingforsingle-screwextrudersincludingvacuumextractionvalvedextrusionandinstrumentationHeisanSPEfellowandamemberofthePlasticsHallofFame

Remembering ANTEC 2015

Heinz Herrmann AwardAwardrecipientsaretohavecontributedsignificantlytotheadvancementoftwin-screwextrusiontechnologyThiscanbeaccomplishedthroughexperimentalortheoreticalachievementsthatprovideanunderstandingtothefundamentalsofprocessingmaterialintheextruderTheseexperimentscouldinclude(butnotlimitedto)workrelatingtosolidsconveyingmeltingmixingdevolatilizationandpumpingfunctionsoftwinscrewextrusion(TSE)TheHeinzHerrmannAwardissponsoredbyCoperionCorporation

TheawardthisyearwaspresentedtoDaniel TynananotheroftheDuPontDreamTeamExtrusionResearchersinthe1950sHehaspatentsonpolymerfinishingusingnovelthin-filmmeltreactorsoneofwhichwasacounterrotatingtwin-screwdeviceHeisaco-inventorofakeyDuPontpatentonaprocessfornylontougheninginvolvingstagingthefeedtoatwin-screwextruderSomeofhisimportantcontributionstoDuPontthatwerenotpublishedincludefundamentalsmodelingofTSETSEexperimentalvalidationandnewscrewdesigns

Heinz List AwardRecipientsaretohavecontributedsignificantlytotheadvancementofpolymerdevolatilizationdryingevaporationorreactivepolymerizationtechnologiespertainingtoextrusionprocessingTheHeinzListAwardissponsoredbyListUSAInc

Thisyearrsquosawardwaspresentedto Dr Costas TzoganakisUniversityofWaterlooChemicalEngineeringDrTzoganakiswashonoredforhisinnovativeresearchinreactiveextrusiontechnologiesThesetechnologiesincludenumerousreactivesystemsusingscrewextrudersincludingmodificationofLLDPEusingperoxidesPPmodificationusingperoxidesnitroxidesandsulfonylazidechemistries

Jack Barney Award TheJackBarneyAwardwasinitiatedbyWelexCorporationtohonorJackBarneythefounderofExtrusionDiesIndustriesTheawardistobepresentedtopersonswhohavemadeasignificantcontributiontothedevelopmentoftheflatsheetindustryTheircontributionscanbetechnicalorcommercialbutshouldhavevaluetotheindustryasawholeTheJackBarneyAwardissponsoredbyExtrusionDiesIndustries

SPE EXTRUSION DIVISION NEWSLETTER PAGE 4

ThisyearrsquosrecipientwasDoug DarrowpresidentofAlliedDiesDougiswellknowninnovatorandhehasbeeninstrumentalinsheetfor40+yearsHeinnovatedatBrownMachineDavisStandardGloucesterEDICloerenandnowhisowncompanyAllieddiesdesignsandmanufacturescustomdiesaswellasrelatedtoolingforplastictoforeignanddomesticprocessorsofslotdiecoatingextrusioncoatingandlaminatingcastfilmandsheetforindustrialmarketsaircraftappliancesautomotiveelectronicsandhousing

2014 ANTEC Best Paper AwardAMechanismforSolidBedBreakupinSingle-ScrewExtrudersndashSolidBedShapeChangeco-authoredbyDrGregoryACampbellCastleResearchJonesportMEandDrMarkASpaldingTheDowChemicalCompanyMidlandMich

Outstanding Service AwardThiswasgiventoKarenXiaoinrecognitionofherserviceasExtrusionDivisionBoardChair2014-2015andTechnicalProgramChair2013-2014

New SPE Honored Service MembersDuringtheawardsceremonytheExtrusionDivisionalsoannouncedthatlong-timeExtrusionBoardmembersJohn Wagner(left)ofCrescentAssociatesandDr Paul AndersenofCoperionCorpwerenamedSPEHonoredServiceMembers

SPE EXTRUSION DIVISION NEWSLETTER PAGE 5

SPE EXTRUSION DIVISION NEWSLETTER PAGE 6

Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 4: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

Heinz Herrmann AwardAwardrecipientsaretohavecontributedsignificantlytotheadvancementoftwin-screwextrusiontechnologyThiscanbeaccomplishedthroughexperimentalortheoreticalachievementsthatprovideanunderstandingtothefundamentalsofprocessingmaterialintheextruderTheseexperimentscouldinclude(butnotlimitedto)workrelatingtosolidsconveyingmeltingmixingdevolatilizationandpumpingfunctionsoftwinscrewextrusion(TSE)TheHeinzHerrmannAwardissponsoredbyCoperionCorporation

TheawardthisyearwaspresentedtoDaniel TynananotheroftheDuPontDreamTeamExtrusionResearchersinthe1950sHehaspatentsonpolymerfinishingusingnovelthin-filmmeltreactorsoneofwhichwasacounterrotatingtwin-screwdeviceHeisaco-inventorofakeyDuPontpatentonaprocessfornylontougheninginvolvingstagingthefeedtoatwin-screwextruderSomeofhisimportantcontributionstoDuPontthatwerenotpublishedincludefundamentalsmodelingofTSETSEexperimentalvalidationandnewscrewdesigns

Heinz List AwardRecipientsaretohavecontributedsignificantlytotheadvancementofpolymerdevolatilizationdryingevaporationorreactivepolymerizationtechnologiespertainingtoextrusionprocessingTheHeinzListAwardissponsoredbyListUSAInc

Thisyearrsquosawardwaspresentedto Dr Costas TzoganakisUniversityofWaterlooChemicalEngineeringDrTzoganakiswashonoredforhisinnovativeresearchinreactiveextrusiontechnologiesThesetechnologiesincludenumerousreactivesystemsusingscrewextrudersincludingmodificationofLLDPEusingperoxidesPPmodificationusingperoxidesnitroxidesandsulfonylazidechemistries

Jack Barney Award TheJackBarneyAwardwasinitiatedbyWelexCorporationtohonorJackBarneythefounderofExtrusionDiesIndustriesTheawardistobepresentedtopersonswhohavemadeasignificantcontributiontothedevelopmentoftheflatsheetindustryTheircontributionscanbetechnicalorcommercialbutshouldhavevaluetotheindustryasawholeTheJackBarneyAwardissponsoredbyExtrusionDiesIndustries

SPE EXTRUSION DIVISION NEWSLETTER PAGE 4

ThisyearrsquosrecipientwasDoug DarrowpresidentofAlliedDiesDougiswellknowninnovatorandhehasbeeninstrumentalinsheetfor40+yearsHeinnovatedatBrownMachineDavisStandardGloucesterEDICloerenandnowhisowncompanyAllieddiesdesignsandmanufacturescustomdiesaswellasrelatedtoolingforplastictoforeignanddomesticprocessorsofslotdiecoatingextrusioncoatingandlaminatingcastfilmandsheetforindustrialmarketsaircraftappliancesautomotiveelectronicsandhousing

2014 ANTEC Best Paper AwardAMechanismforSolidBedBreakupinSingle-ScrewExtrudersndashSolidBedShapeChangeco-authoredbyDrGregoryACampbellCastleResearchJonesportMEandDrMarkASpaldingTheDowChemicalCompanyMidlandMich

Outstanding Service AwardThiswasgiventoKarenXiaoinrecognitionofherserviceasExtrusionDivisionBoardChair2014-2015andTechnicalProgramChair2013-2014

New SPE Honored Service MembersDuringtheawardsceremonytheExtrusionDivisionalsoannouncedthatlong-timeExtrusionBoardmembersJohn Wagner(left)ofCrescentAssociatesandDr Paul AndersenofCoperionCorpwerenamedSPEHonoredServiceMembers

SPE EXTRUSION DIVISION NEWSLETTER PAGE 5

SPE EXTRUSION DIVISION NEWSLETTER PAGE 6

Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 5: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

ThisyearrsquosrecipientwasDoug DarrowpresidentofAlliedDiesDougiswellknowninnovatorandhehasbeeninstrumentalinsheetfor40+yearsHeinnovatedatBrownMachineDavisStandardGloucesterEDICloerenandnowhisowncompanyAllieddiesdesignsandmanufacturescustomdiesaswellasrelatedtoolingforplastictoforeignanddomesticprocessorsofslotdiecoatingextrusioncoatingandlaminatingcastfilmandsheetforindustrialmarketsaircraftappliancesautomotiveelectronicsandhousing

2014 ANTEC Best Paper AwardAMechanismforSolidBedBreakupinSingle-ScrewExtrudersndashSolidBedShapeChangeco-authoredbyDrGregoryACampbellCastleResearchJonesportMEandDrMarkASpaldingTheDowChemicalCompanyMidlandMich

Outstanding Service AwardThiswasgiventoKarenXiaoinrecognitionofherserviceasExtrusionDivisionBoardChair2014-2015andTechnicalProgramChair2013-2014

New SPE Honored Service MembersDuringtheawardsceremonytheExtrusionDivisionalsoannouncedthatlong-timeExtrusionBoardmembersJohn Wagner(left)ofCrescentAssociatesandDr Paul AndersenofCoperionCorpwerenamedSPEHonoredServiceMembers

SPE EXTRUSION DIVISION NEWSLETTER PAGE 5

SPE EXTRUSION DIVISION NEWSLETTER PAGE 6

Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 6: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 6

Sponsored by the SPE Extrusion Division and SPE MilwaukeeChicago Sections March 29-31 2016 Holiday Inn Convention Center Gurnee Ill

MarkyourcalendarsDonrsquotmisstheSPEShapeExtrusionTopconhelliptheeventwhereyoursquolllearnthetheoryandtricksofthetradetomakehigh-precisionextrudedproductsApreliminaryagendafollowsbullSinglescrewextrusionbullTwinscrewextrusionbullScrewdesignbullProcesstroubleshootingbullComputermodelingoftheextrusionprocessbullDiedesignbullUpstreammaterialhandlingampfeedingbullOn-linegaugingbullControldevelopmentsandintegrationtuningbullCo-extrusionbullCompoundingbullDownstreamtracksfilmsheettubingandprofilebullProcesstutorialandtroubleshootingsessions

SpeakerswillincludemembersoftheSPEExtrusionDivisionBoardindustryexpertsandacademiaClickhereforthelatestprogramdetails QuestionsContacttheProgramChairmanDrDavidBigioUnivMDviae-mail

Registrationfees EarlyregistrationbeforeMarch12016bull$525FullConferencenon-member(includesSPEmembership)bull$425Fullconferencemember

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 7: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

AfterMarch1bull$575FullConferencenon-member(includesSPEmembership)bull$475Fullconferencemember

Optionaltutorialsessionsadd$100or$200standaloneRegistrationswillbeacceptedafterDecember1

Tabletopscorporate sponsorshipsAlimitednumberofsponsorshipsareavailableforonly$1000ifinterestedcontactCharlieMartinofLeistritzviae-mail

Welookforwardtoseeingyouatthishigh-techevent

SPE EXTRUSION DIVISION NEWSLETTER PAGE 7

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 8: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 8

wwwantecws

ANTECreg 2016 l MAY 23-25 l INDIANAPOLIS IN

Early Bird registration discounts end March 1st

REGISTERTODAY

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 9: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 9

BenDryeraMScandidateatUniversityofMarylandandAliGogeraPhDcandidateatMcMasterUniversitywerean-nouncedasthe2015recipientsoftheLewErwinScholarshipbytheSPEExtrusionDivision BenhasstudiedmechanicalengineeringbothasanundergraduateandgraduatestudentDuringhisgraduateprogramBenrsquosresearchhasfocusedontwin-screwcompoundingwithagreateremphasistowardmixingOnetoolusedinthisworktoevalu-atemixingefficiencyisResidenceStressDistribution(RSD)BennotesldquoWhencomparedwithresidencetimedistributiontheRSDpresentsapictureofstresshistorydevelopedintheextrudermixingsectionrdquoBenco-authoredanANTEC2015papertitleCombi-natorialEffectsofKneadingElementsonMixinginTwin-screwCompoundingFortheworkreportedheusedtheRSDmethodologytoquantifythestressdevelopedbydifferentcombinationsandlengthsofkneadingblocksinatwin-screwmixingsectionHiscurrentresearchgoalistoconnectRSDtotheresultantmaterialpropertiesofanextrudedfinalproduct AliisagraduateChemicalEngineercurrentlyworkingonhisPHDthesisSolventFreeExtrusionEmulsificationHisprojectrelatestoanunconventionaluseofco-rotatingtwin-screwextruderstoproducesolvent-freeoilinwateremulsionsforlatexprintingandcosmeticsindustryDuringthecourseofhisworkonthetwin-screwhehasevaluatedtheeffectofchemistryprocess-ingconditionsandscrewconfigurationAlihasalsobeenactivelyinvolvedintheSPEOntariostudentchapterwherehehasservedasVPsince2013 ThisawardhonorsLewErwinrsquoscommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryLewErwinrsquosmajortechnicalcontributiontotheExtrusionareahasbeeninseminalworksintheconceptsoflaminarmixinginex-trusionHisideasofextensionalmixingandreorientationwerepresentedwithasimplicitythatdemonstratedtheimportanceoftheideasandwaystoapplythemtoextrusionHisworkreceived2BestPaperAwardsErwinrsquoscontributioninthefieldofpolymerprocessingwentbeyondtheareaofextrusionHewasinstrumentaltothegrowthofthePolymerProcessingProgramatMITinthelate70sand80sHeworkedtocreatetheswirlpatterninIrishSpringHehelpedsolvetheproblemofhavingtheheatshieldelementssticktotheNASAshuttle HiscommitmentwastotheareaofeducationHeempoweredundergraduatesMastersandPhDstudentsManyofhisearlypaperswereco-authoredwithundergraduatestudentsHeparticipatedontheExtrusionboardandwaschairofthedivisionin1983

Ben Dryer amp Ali Goger 2015 Recipients of the Lew Erwin Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 10: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 10

TECH TIPS

Removing Cleaning Restaging and Reinstalling Your Twin-Screw Extruder Screw SetAdvice for removing screw elements from shafts

By Bert Elliott and Bill Novak Leistritz

IfatallpossibleworkonthescrewsimmediatelyafterusewhiletheyarestillhotorputthescrewshaftassemblybackintheZSEtwinscrewextrudertoheattheshaftsandelementstogetherAllowingtheelementstimetoheatupslowly(about20minutes)isalwaysbetterTheideawouldthenbetoremovethescrewtipsandslideoffaportionofthescrewsontoaraisedtableorcartrightattheendofthemachine IftheshaftsmustberemovedfromthemachineandheatedwithatorchpleaseusecautionandheatevenlyallthewayaroundtheelementDonotlettheelementschangecolorThiscanaffectthemetallurgyWarmtheminsteadofburningthemUsearosebudacetylenetorchandbepatientWhiletheelementsarehotuseapunchmadefromwoodorhardplastictopushtheelementsfromtheshaftAnaluminumorbrassdriftpincanalsobeusedbutcautionisalwaysadvisablewhenimpactingtheelementsAnelectricimpacthammermaybepurchasedthatwillsignificantlyhelpFollowthesesteps

bullUSEHOTGLOVESbullSupportthescrewshaftassembliesatenoughpointssothattheydonotbendbullUnscrewthetipstoremovetheelementsbullWhileusingtherosebudpulltheelementfromtheshaftbullMoredifficultelementsmayneedfriendlypersuasionbullAngletheappropriatepunchagainsttheflightoftheelementbullUsearubbermalletandhammerwhileheatinguntiltheelementmovesbullRemoveoneatatimeandbesurebrushcleanorscrapetheexposedshaft

AnimpacthammerisanoisydeviceandworksverywellatbreakingloosestuckscrewelementsTheabovestepsstillneedtobefollowedforscrewremovalbutadditionally

bullWearhearingprotectionbullModifythedevicetoacceptabrasstipbullWhileheatingapplyhammeringactiontotheflightoftheelement

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 11: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

Screw element cleaning and inspection BestresultsmaybeobtainedbyatleastdoinganinitialcleaningwithasteelwirebrushorcoppergauzeasthescrewsareremovedfromthemachineOncetheyarebrushedofftheelementsmaybeplacedinanovenorfluidizedbathtocleanthemDonrsquotexceedthetemperatureratingofthemetallurgy Ifthereisblackbaked-ondegradedmaterialsomeformofmechanicalabrasionwillberequiredtoremoveitBrassorcopperbrushesareoftentoosoftandwonrsquotgetbakedondegradedmaterialsoffIfthisisthecase

bullWEARGLOVESANDEYEPROTECTIONbullUseastiffsteelwirebrushwheelonabenchgrinderbullUseabeltsander(smallair-poweredportablebeltsandersworkwell)bullUseasandblasterordry-iceblasterbullCleanelementkeywaysandsplinedbores

OncetheelementsarecleaninspectthemforhairlinecracksandanynicksorgougesNicksandgougesmaybecomecracksandshouldbegentlysmoothedoutwithafileorgrindingdisc Inadditionendfacesshouldbeldquostonedrdquoorsandedsmoothwith320gritsandpaperThisshouldbedoneonalevelflatmechanicalsurfacesuchasamarbleslaborthicksteelplateLayemeryclothor320gritpaperflatonthesurfaceandworkthefaceoftheelementinafigureeightpatternapplyingonlyenoughpressuretoevenlycleantheelementfaceIfwearrateistobedocumentedthedimensionsshouldbecheckedwithamicrometerandrecordedElementswithhairlinecracksshouldbediscardedDamagedelementsbreakapartwhilerunningandhavebeenknowntotwistshaftswreckbarrelsandcausecatastrophicfailuretogearboxes

Clickheretoreadthefullarticle

SPE EXTRUSION DIVISION NEWSLETTER PAGE 11

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 12: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 12

NicholasMooreanincomingfreshmanatPennsylvaniaCollegeofTechnologyWilliamsportPawasannouncedasthe2015recipientoftheEdStewardScholarshipbytheSPEExtrusionDivision ThisawardhonorsEdStewardsrsquocommitmenttotheimportanceofeducationforthefuturesuccessofthePolymerIndustryTheawardisforastudentenrolledorenteringatechnicalprogramleadingtoanassociatesorbachelorrsquosdegreewhoiscommittedtobecomingaldquohands-onrdquoworkerintheplasticsindustryItissupportedbyAmericanKuhnethecompanyEdco-foundedwithBillKramer EdStewardwasaco-founderofAmericanKuhneIncinAshawayRIin1997wherehewastheVicePresidentofPro-cessTechnologyPriortothathewasemployedattheDavisStandardCorporationfor24yearsasthechiefprocessconsultantHisresponsibilitiesincludedscrewdesignandapplicationalongwithprocessingrelatedtasksthatinsuredextrusionsystemsmetthedesignatedperformancegoalsHeiswidelyknownasthedeveloperoftheStewardBarrierScrewwhichgreatlycontributedtothesuccessofAmericanKuhne HehadaBachelorofSciencedegreeinMechanicalEngineeringfromtheUniversityofConnecticutEdwasahighlyrespectedFellowofSPEandwrotenumerouspapersforvariousextrusionsocietiesandpublicationsonscrewdesignandrelatedtopicsincludingco-authoringtheextrusionchapterinSPIrsquosPlasticsEngineeringHandbookHeposthumouslyreceivedtheSPEExtrusionDivisionrsquosDistinguishedAchievementAwardin2014 TheDivisionestablishedtheEdStewardScholarshipinhismemoryin2014

Nicholas Moore 2015 Recipient of the Extrusion Divisionrsquos Ed Steward Scholarship

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 13: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 13

WWU SPE Student Chapter Takes a Five-Company Tour

TheWesternWashingtonUniversitySPEStudentChaptertookatriptoPortlandOrefromBellinghamWash(wheretheuniversityislocated)onOctober15-16totourfivedifferentcompaniesrelatedtoplasticsengineeringThe44studentsandeightprofessorsthatparticipatedsawhowaninjectionmoldmanufacturingbusinessfunctionsatBestcofollowedbyatourofacustominjectionmolderRampDPlastics AtChemWestthegrouplearnedabouthigh-precisionplasticsmachiningNextupwasNikeInHouseManufacturingwheretheairsolesforNikeshoesaremanufacturedStudentslearnedabouthowtheprocessengineerstherehavetoconstantlybalancetryingtoimprovethemanufacturingprocesseswhilestillmeetingtheextremelyhighproductionvolumedemands ThefinaltourwasofDaimlerTrucksNorthAmericarsquosresearchfacilitiesHighlightsincludedtheirwindtunnelvehicleshakerlabmaterialtestinglabandthermaltestchambersManyengineeringstudentsatWWUarecurrentlyworkingonprojectswiththecompaniesthatweretouredincludingcustomcompoundingwithextrusionequipmentThetourshelpedgivecontexttotheirworkSometourparticipantswerefreshmeneagertolearnmoreaboutengineeringasawholeIngeneralseeingtheconceptsandprocessesthatyouarelearningaboutinclassesbeingimplementedintherealworldisagreatenhancementtolearning

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 14: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 14

TECH TIPS

Calibrate Those InstrumentsBy Timothy Womer

IwasrecentlyaskedtovisitasheetprocessortodeterminethecauseofamajorscrewdesignproblemSoasalwaysIstartedatthebeginningtogatherallofthetechnicalinformationtodeterminetherootcauseThisfacilityhadfivelargeextrusionsheetlinesandtheywereissueswithallfiveextrudersWiththeextruderatroomtemperatureIsetupthreedialindicatorsonthedischargeflangeofthebarrelintheXYandZaxisThenIturnedonthebarrelheaterstothestandardzonesettingtomakesurethatthebarrelthermallyexpandedintheZ-axisdirectasmuchasitshouldtheoreticallyandthattheXandYindicatorsmoveminimally Thesimpleequationtodeterminetheamountofexpansionthatabarrelshouldgrowis

ΔL=000000633XΔTXLwhereΔL=ThechangeinlengthΔT=ThechangeintemperatureinthiscasefromroomtemperaturetothebarrelzonesettingL=Theheatedlengthofthebarrel

Amazinglythebarrelgrewwithinabout0030-inofthetheoreticalchangeinlengthwhichinthiscasewasapproximately0750in ThenImeasuredtheflightODonseveralofthescrewsforvariousdesignstodetermineiftherewasaconsistentwearpatternTherewassothatwasnoted ThenIgatheredalloftheprocessdataThisisaveryimportantpartofdoingaldquoCSIrdquoonscrewsThisiswhereyoucollectthegiventhroughputrateatagivenscrewspeedagainsttheheadpressureduringthattimedratecheckmotorloadandmelttemperature ThemotorloadreadingistakenfromtheammeteronthecontrolpanelthescrewspeedistakenfromthetachometerIfatallpossibleitisbesttohavethecustomerrsquosplantmanagertocheckthemotorloadwithahandheldmetertoverifythattheammeteronthecontrolpanelisreadingcorrectlyAsforcheckingthescrewspeedthistypicallycanbedonebyusingastopwatchandcountingtherotationofthedrivequillatthebackofthegearbox InthiscasethecontrolpanelammeterwasreadingcorrectlybutthescrewspeedwasnotThecustomerrsquossetupsheetshowedthattheirstandardsetupwastohavetheextruderoperatingat70rpmbutwhenIcountedtherevolutionsofthedrivequillIwasgetting92rpmThisisanerrorof24 IthencheckedthetachometeronthelinenexttotheonethatIwasgatheringtheprocessdatafromandthetachometeronitread86rpmbutwhenIdidthecountitwasonlyrotatingat70rpmThismeterwasmis-calibratedby23 SothemoralofthestoryistheonlythingworsethannodataisBADdataInthiscasethecustomerimmediatelyhadtheirmaintenancepeoplere-calibratealloftheircontrolinstruments

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 15: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

NOTESometimesthescrewrotationisfasterthanwhatapersonisabletovisuallyobserveInthesecasesItaketheadvicegiventomewhenIwasakidbyanoldmechanicmentorofmine(whoonlyhada4thgradeeducation)IldquocounttheclicksrdquoIhadnoideawhathemeantuntilheshowedme Howardtookthismachinistscale(apencilorpenwillwork)andturnedonthechuckoftheenginelatheinhisshopthentookthescaleandletitrubagainstthechuckOnanextruderitcanbeasmallboltinthebackoftherotatingdrivequillorthedrivekeyontheshankofthescrewThenwithyourstopwatchinonehandtheldquoclickerrdquointheotheryoucancountthenumberoftimesthatboltorkeyhitstheendofthescalepencilorpenorthenumberofclicksldquoCounttheclicksrdquoVerysimplebutveryeffective JustmakesurethatyourinstrumentsarecalibratedonaregularbasisandalsodoacheckandbalancewhengatheringdataNevertrustwhatyouthinkyouseethefirsttime

Tim Womer is a recognized authority in plastics processing and machinery with a career spanning more than 35 years He has designed thousands of screws for all types of single-screw plasticating He now runs his own consulting company TWWomer amp Associates LLC Contact (724) 355-3311

SPE EXTRUSION DIVISION NEWSLETTER PAGE 15

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 16: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 16

6 Berkshire Boulevard Suite 306 Bethel CT 06801 USAwww4speorgantectpr

Society of Plastics EngineersNext Generation Advisory Board

ldquoAs a student member of SPE Irsquove been given many opportunities to network and learn about the industry primarily through conferences and events My first conference was ANTECreg in May 2014 and it was an eye opening experience that I will never forget Next Generation put together a Plastics Race that enabled participants to explore the city of Las Vegas network with everyone there as well as learn new things about plastics There were riddles to be answered and the top four teams won prizes such as an iPad for the team that came in first iPod touch for second iPod nano for third and iPod Shuffles for the team that came in fourth Next Generation did an amazing job encouraging the participants to do their best have fun and I know that theyrsquoll make Orlando an even better experience in 2015

I encourage everyone to attend every conference they can I especially encourage students to attend because they are the future of the industry and learning what companies are doing now will help to understand what you can do to change the industry for the betterrdquo

Julia Gilchrist SPE Student Member Pennsylvania College of Technology

Brought to you by SPErsquosNext Generation Advisory Board

The Source of New Plastics Leaders

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 17: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 17

SPE Extrusion Board Supports IPICTwin-Screw Seminar and Workshop in Columbia

SPE Extrusion Board Members (left to right) Dr Costas Gogas Dr Mariacutea del Pilar Noriega Escobar and Char-lie Martin of Leistritz presented in June at the IPIC Twin-Screw Seminar and Workshop in Columbia

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 18: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

SPE EXTRUSION DIVISION NEWSLETTER PAGE 18

HAPPY HOLIDAYS

From SPE Extrusion Division

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 19: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

TECH TIPS

Melting 101 Surprisingasitmightseemplasticsprocessorsgenerallydonrsquotunderstandhowpolymermeltsinasingle-screwextruderEventhosewithagreatdealofpracticalexperiencehaveproblemsgraspingtheconceptanditrsquosanimportantonetounderstandtomaximizetheefficienciesofyourextrusionoperation TosimplifytheconceptandillustratethebasicmechanismthinkofthebarrelrotatingaroundastationaryscrewMostsingle-screwanalysisisbasedonthistechniqueandIrsquovefoundthatitsimplifiesthegeometryandprovidesthesameresults Thepolymerentersthescrewasparticles(pelletspowderflakes)andiscompactedbythescrewflightsintoatightlycompactedmass(seeAintheaccompanyingillustration)AtthatpointfrictionbetweenthepelletsandthebarrelraisesthetemperatureofthepolymerclosesttothebarrelwallInadditionsomeheatisconductedintothepolymerfromthehotbarrelhelpingtoformathinfilmofmeltbetweenthebarrelandsolidpolymer(seeBintheaccompanyingillustration) FromthatpointforwardtheenergyformeltingisdevelopedinthefilmlargelythroughviscousdissipationorshearheatingMostprocessorsunderstandtheconceptoftransferredheatfromthehotbarrelbutviscousdissipationisnotaseasilygraspedwhichisunfortunatesinceitsuppliesalmostalltheenergyforpolymermeltingWhathappensasaresultisamisguidedrelianceonbarreltemperaturesformelting

Clickheretoreadthearticleinitsentirety

SPE EXTRUSION DIVISION NEWSLETTER PAGE 19

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount
Page 20: A Message From the Chair€¦ · Erwin’s contribution in the field of polymer processing went beyond the area of extrusion. He was instrumental to the growth of the Polymer Processing

Committee ChairsBarry MorrisLONGRANGEMEMBERSERVICESCHAIREmailbarryamorrisusadupontcom Charlie MartinEDUCATIONCOMMITTEECHAIRMINI-TECHCHAIREmailcmartinalec-usacom

David Bigio PhDTECHPROGRAMCHAIR-TOPCONCONFERENCECHAIR-TOPCON

Emaildbigioumdedu Eldridge Mount PhD FELLOWSCOMMITTEECHAIREXTRUSIONDIVISIONWEBINARSCHAIRSPESEMINARCOMMITTEECHAIREmailemmountearthlinknet Gregory A Campbell PhDFINANCECOMMITTEECHAIRSPEECMEMBEREmailswcgacnorthnetorg Jeff Biesenberger ELECTIONSCHAIREmailjeffbiesenbergerads-pipecom Kevin Slusarz MEMBERSHIPCOMMITTEECHAIREmailkslusarzamericankuhnecom Mark Spalding PhDAWARDSCOMMITTEECHAIRHONOREDSERVICECHAIREmailmaspaldingdowcom Olivier CatherineWEBCONTENTMASTERSOCIALMEDIACHAIRTECHPROGRAMCHAIRANTECEmailocatherinecloerencom

Paul Andersen PhD

LEWERWINSCHOLARSHIPCHAIR

Emailpaulandersencoperioncom

Tom McHouell

STUDENTCHAPTERCHAIR

Emailtommchpolymers-centerorg

SUPPORT THE SPE EXTRUSION DIVISION

Board of DirectorsAdam Dreiblatt Emaildreiblattacenturyextrusioncom

Chad Brown CHAIRYOUNGPROFESSIONALCOMMITEE Emailchad_brownmerckcom Costas Gogos PhD Emailgogospolymers-ppior

Graciela Terifegracielaterifemerckcom Jaime Gomez PhD SPEECMEMBEREmailjgomez4speorg Jim Callari NEWSLETTEREDITOREmailjcallariptonlinecom John Perdikoulias PhDEmailjpcompuplastca Mahesh Gupta Emailmaheshmtuedu Monika GneussHISTORYCHAIREmailMonikaGneussgneusscom

Paul MartinEmailPaulmartinlistus

Richard KanarskiEmailrkanarskidavis-standardcom

David AnziniCHAIRBY-LAWSCOMMITTEECHAIREmaildavidanzinizippakcom Karen Xiao PhDPASTCHAIREmailkarenxiaocelgardcom

Daniel SmithCHAIRELECTSPONSORSHIPCOMMITTEECHAIRPINNACLEAWARDCHAIREmaildanielsmithmaagcom

Steve SchickSECRETARY Emailsschickteelcom John WagnerTREASUREREmailjwagner5rochesterrrcom Mark WetzelCOUNCILOREmailmarkdwetzelusadupontcom

Joseph GolbaEmailjosephgolbapolyonecom

ForsponsorshipopportunitiescontactDanSmithatdanielsmithmaagcom

Extrusion Division Board of Directors

  1. Page 2 Ad
  2. Davis Standard
  3. Leistritz
  4. Email
  5. Kuraray
  6. Charlie Martin Email
  7. Nordson
  8. ACS
  9. Coperion
  10. Gneuss
  11. SML
  12. Barr
  13. JSW
  14. Chung
  15. TWomer Email
  16. Womer website
  17. Teel
  18. MT
  19. Emmount

Polymer Processing 2006 Polymer Processing

Polymer Processing 2006 Polymer Processing

polymer processing - Chulalongkorn University: Faculties ...pioneer.netserv.chula.ac.th/~sanongn1/polymer_processing.pdf · Polymer Processing. Thermoplastics start as regular pellets

polymer processing - Chulalongkorn University: Faculties ...pioneer.netserv.chula.ac.th/~sanongn1/polymer_processing.pdf · Polymer Processing. Thermoplastics start as regular pellets

Polymer Processing Modeling and Simulation

Polymer Processing Modeling and Simulation

Polymer Processing

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Polymer Crystallization : Structure, Properties & Processing

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Ruhland Polymer Processing

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Polymer Processing - llrc.mcast.edu.mt

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Polymer Processing Additivesmultimedia.3m.com/mws/media/144133O/ppas-to-improve-extrusion... · Polymer Processing Additives ... melt temperature, ... and the resistance of the polymer

Polymer Processing Additivesmultimedia.3m.com/mws/media/144133O/ppas-to-improve-extrusion... · Polymer Processing Additives ... melt temperature, ... and the resistance of the polymer

Understanding Polymer Processing - Hanser

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Polymer processing-2.ppt

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11 Polymer Composite Processing

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Rheometry of polymer melts using processing machinesblogs.ubc.ca/frigaard/...polymer-melts-using-processing-machines.pdf · Rheometry of polymer melts using processing machines ...

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Relationships Between polymer Rheology and polymer processing

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Overview of Polymer Processing

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Polymer Processing 1

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Advanced Polymer Processing Operations com

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Polymer Processing - Li

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An Overview of Polymer Processing

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Polymer and Ceramic Processing. Outline Polymer Processing Techniques Polymer Additives Ceramic Fabrication Methods Glass Forming Particulate.

Polymer and Ceramic Processing. Outline Polymer Processing Techniques Polymer Additives Ceramic Fabrication Methods Glass Forming Particulate.