Microstructural Characterization and Corrosion-Resistance ...
Corrosion resistance process
1
DEVELOPMENTS NEW EQUIPMENT, PROCESSES, & MATERIALS Eliminate Pump Stalling Wilden Pump & Engrg. Co. Grand Terrace, Calif. Problematic pump stalling has been diminished via Pro-F10 technology. The Pro-F10 air distribution system design utilizes a pilot valve and unbalanced spool, which serves as an anticentering device holding its shifting mechanism in place until reciprocation is initiated. Pro- prietary composite seal and bore materi- als coupled with close manufacturing tolerances require no lubrication while significantly reducing blo-by. Problem- atic freezing is diminished due to Pro- Flo porting and muffler desing. Pro-Flo pumps provide fluid transfer on demand without hesitation. Circle 401 on the reader service card Gas-Fired Conveyor Oven The Grieve Corp. Palatine, 111. No. 766 from The Grieve Corp., a gas-f&d conveyor oven currently in use for heat treating pistons, features two independent heating zones within its overall 49.ft. processing length, and are built on a heavy-duty &in. channel steel frame, structurally reinforced and internally welded throughput. An 8-ft. long open loading zone allows easy access to the 42-in. wide, l-in. l-in. high carbon steel conveyor belt pow- ered by a l/i-hp motor drive with vari- able speed. Next are a IO-ft. long, 200°F heating zone with a 6,000 cfm, 5-hp recirculating blower, a I-ft long open zone, and 3-ft long cooling zone, and a 7-ft long open unloading zone. Each heat zone is heated by a 500,000 BTU/hr modulating nature1 gas burner and includes all applicable safety equipment. A vertical downward air- flow heats the loads, which pass through carbon steel heating chambers featuring 4-in. insulated walls. A IO-in. diameter, 2-pen circular chart temper- ature recorder is also included. Side access doors are built into the con- veyor oven for maintenance and load inspection. Circle 402 on the reader oervice card Corrosion Resistance Process Kolene Corp. Detroit Kolene Corp. has developed a pro- cess that improves the corrosion resis- tance of ferrous metal parts. while en- hancing wear resistance, fatigue strength, lubricity, and surface finish. The QPQ (quench-polish-quench) pro- cess combines Kolene’s salt bath liquid nitriding process with a posttreatment quench, followed by mechanical pol- ishing and re-immersion in the quench bath. The QPQ sequence after nitriding produces a highly corrosion-resistant surface with a finish suitable for bear- ing or seal-type applications. The Kolene QPQ process is used in a broad range of applications where surface finish and corrosion and wear resis- tance are critical. Circle 403 on the reader service card Benchtop Spectrophotometer Minolta Corp. Ramsey, N.J. Minolta Corp., Instrument Systems Div., introduces the CM-3500d, an economical benchtop spectrophotom- eler with a variety of functions that allow it to perform accurate color mea- surement of not only solids, but liq- uids, powders. and pastes. Using an optional petri dish accessory, the in- strumcnt has the capability of measur- ing powders and pastes. In addition, the CM-3500d is capable of measuring the spectral transmittance of liquids or specimens in sheet or plate form. The CM-3500d features SCI/SCE switch- able measurement capability, and changeable measurement areas. An RS-232C interface allows for easy connection to a PC. All measurements can be conducted from the computer, viewed on the monitor, and stored for future detailed analysis. Circle 404 on the reader service card Film-Backed Belts 3M Co. St. Pau/, Minn. 3M offers new Scotch-Brite finish- ing film-backed belts that are soft and conformable to follow surface con- tours in light pressure, fine finishing applications. The belts have a smooth nylon film backing that is tough enough to withstand water and oil and resist tearing. A built-in lubricant pre- vents smearing, reduces loading, and helps increase belt life. Available in two grades, the belts work well with platen equipment. Use A-Very Fine belts for fine finishing including blend- ing. finishing, and coating removal on composites and metals, white wood defuzzing, sealer sanding. and scuff- ing. Use Type T belts for high polish- ing and bright finishes of metals, plas- tics/composites and jewelry. Circle 405 on the reader service card Vibratory Finishing Almco Inc. A/bed lea, Minn. A compact, thm-feed vibratory sys- tem that offers a 26.ft tub capacity for deburring and finishing metal Parts with limited operator involvement is now available from ALMCO Inc. The Model V-26TF, designed for standard or steel finishing media applications, features a short-travel. right-angle os- cillating parts-media separator, which traps media through a damming effect, allowing finished parts to be conveyed over a shorter screen while the media is returned to the front of the system for reuse. Additional features include 68 METAL FINISHING . MARCH 1996
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Transcript of Corrosion resistance process
DEVELOPMENTS NEW EQUIPMENT, PROCESSES, & MATERIALS
Eliminate Pump Stalling Wilden Pump & Engrg. Co. Grand Terrace, Calif.
Problematic pump stalling has been diminished via Pro-F10 technology. The Pro-F10 air distribution system design utilizes a pilot valve and unbalanced spool, which serves as an anticentering device holding its shifting mechanism in place until reciprocation is initiated. Pro- prietary composite seal and bore materi- als coupled with close manufacturing tolerances require no lubrication while significantly reducing blo-by. Problem- atic freezing is diminished due to Pro- Flo porting and muffler desing. Pro-Flo pumps provide fluid transfer on demand without hesitation.
Circle 401 on the reader service card
Gas-Fired Conveyor Oven The Grieve Corp. Palatine, 111.
No. 766 from The Grieve Corp., a gas-f&d conveyor oven currently in use for heat treating pistons, features two independent heating zones within its overall 49.ft. processing length, and are built on a heavy-duty &in. channel steel frame, structurally reinforced and internally welded throughput. An 8-ft. long open loading zone allows easy access to the 42-in. wide, l-in. l-in. high carbon steel conveyor belt pow- ered by a l/i-hp motor drive with vari- able speed. Next are a IO-ft. long, 200°F heating zone with a 6,000 cfm, 5-hp recirculating blower, a I-ft long open zone, and 3-ft long cooling zone, and a 7-ft long open unloading zone. Each heat zone is heated by a 500,000 BTU/hr modulating nature1 gas burner and includes all applicable safety equipment. A vertical downward air-
flow heats the loads, which pass through carbon steel heating chambers featuring 4-in. insulated walls. A IO-in. diameter, 2-pen circular chart temper- ature recorder is also included. Side access doors are built into the con- veyor oven for maintenance and load inspection.
Circle 402 on the reader oervice card
Corrosion Resistance Process Kolene Corp. Detroit
Kolene Corp. has developed a pro- cess that improves the corrosion resis-
tance of ferrous metal parts. while en- hancing wear resistance, fatigue strength, lubricity, and surface finish. The QPQ (quench-polish-quench) pro- cess combines Kolene’s salt bath liquid nitriding process with a posttreatment quench, followed by mechanical pol- ishing and re-immersion in the quench bath. The QPQ sequence after nitriding produces a highly corrosion-resistant surface with a finish suitable for bear- ing or seal-type applications. The Kolene QPQ process is used in a broad range of applications where surface finish and corrosion and wear resis- tance are critical.
Circle 403 on the reader service card
Benchtop Spectrophotometer Minolta Corp. Ramsey, N.J.
Minolta Corp., Instrument Systems Div., introduces the CM-3500d, an economical benchtop spectrophotom- eler with a variety of functions that allow it to perform accurate color mea- surement of not only solids, but liq- uids, powders. and pastes. Using an optional petri dish accessory, the in- strumcnt has the capability of measur- ing powders and pastes. In addition,
the CM-3500d is capable of measuring the spectral transmittance of liquids or specimens in sheet or plate form. The CM-3500d features SCI/SCE switch- able measurement capability, and changeable measurement areas. An RS-232C interface allows for easy connection to a PC. All measurements can be conducted from the computer, viewed on the monitor, and stored for future detailed analysis.
Circle 404 on the reader service card
Film-Backed Belts 3M Co. St. Pau/, Minn.
3M offers new Scotch-Brite finish- ing film-backed belts that are soft and conformable to follow surface con- tours in light pressure, fine finishing applications. The belts have a smooth nylon film backing that is tough enough to withstand water and oil and resist tearing. A built-in lubricant pre- vents smearing, reduces loading, and helps increase belt life. Available in two grades, the belts work well with platen equipment. Use A-Very Fine belts for fine finishing including blend- ing. finishing, and coating removal on composites and metals, white wood defuzzing, sealer sanding. and scuff- ing. Use Type T belts for high polish- ing and bright finishes of metals, plas- tics/composites and jewelry.
Circle 405 on the reader service card
Vibratory Finishing Almco Inc. A/bed lea, Minn.
A compact, thm-feed vibratory sys- tem that offers a 26.ft tub capacity for deburring and finishing metal Parts with limited operator involvement is now available from ALMCO Inc. The Model V-26TF, designed for standard or steel finishing media applications, features a short-travel. right-angle os- cillating parts-media separator, which traps media through a damming effect, allowing finished parts to be conveyed over a shorter screen while the media is returned to the front of the system for reuse. Additional features include
68 METAL FINISHING . MARCH 1996
