Adhesives for E-Motors EN - DELO Industrial Adhesives · PDF file3 Bonding magnets to rotors...
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Adhesives for E-Motors Multiple bonds in e-motors
Transcript of Adhesives for E-Motors EN - DELO Industrial Adhesives · PDF file3 Bonding magnets to rotors...
Adhesives for E-Motors Mul
tiple
bon
ds
in e
-mot
ors
Bonding the stator to the housing
Magnet bonding
Shaft bonding
CR = Casting ResinDB = Dual BondingGE = General EncapsulantHT = High Temperature
DELO-ML DB, DELO DUALBOND
DELO-DUOPOX CR, DELO MONOPOX GE
DELO-DUOPOX, DELO-PUR
DELO MONOPOX HT
DELO-DUOPOX CR DELO MONOPOX G
HIGHLY RELIABLE CASTING
DELO-ML DB, DELO DUALBOND
FAST PROCESSES (LIGHT FIXATION < 10 S)
DELO MONOPOX
HIGH-TEMPERATURE APPLICATIONS (+220 °C)
DELO-DUOPOX, DELO-PUR
HIGH TOLERANCES,GAP-FILLING
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Adhesives for e-motorsWhen manufacturing modern e-motors, it is essential to improve the effi ciency, for example by minimizing the air gap between magnet and winding. Since conventional methods, such as mechanical clamping or wrapping reach their limits due to high tolerances, bonding is the solution.
The requirements imposed on the e-motor components to be joined (and therefore also on the adhesives used) are high. In this respect, recurring buzz words such as temperature-resistant, media-resistant, gap-fi lling, impact-resistant and tension-equalizing are often used. The adhesives specially developed for e-motors have precisely these properties.
The overview on the left shows a selection of DELO adhesives used in specifi c e-motor applications according to their properties.
DELO’s adhesives for …
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Bonding magnets to rotors
Bonding buried magnets into rotors
Magnet bondingMore and more e-motor magnets are bonded as adhesives have several property and process advantages over conventional mechanical joints:
Tolerance compensation Evenly distributed stress Easy to automate Reduced vibration noise Good corrosion protection No component damage during joining
Bonding magnets into housings
Your benefits High temperature stability up to +220 °C Excellent media resistance Good gap fi lling Fast light fi xation (< 10 s) Tension-equalizing
Find the right adhesive …
HEAT CURINGROOM TEMPERATURE CURING
AD = ADhesive DB = Dual Bonding HT = High Temperature SJ = Structural Joining
DELO-MLDB135DB180DB154
Dual curinganaerobic / light
Fixation in less than 10 s with DELOLUX 20 or DELOLUX 80
DELO-ML5327
Anaerobic curing
Temperature resistance up to +200 °C
Fast fi xation with activator
DELO-DUOPOXSJ8665DELO-PUR 9694
2C adhesives
Peel resistance
DELO DUALBONDSJ2718
1C epoxy
Fast induction curing
Dual curing light / heat
DELO MONOPOXHT2860
1C epoxy
Impact resistance
DELO MONOPOXAD298
1C epoxy
High run resistance during curing
FAST FIXATION
ST XATION
IMPACT-RESISTANT
GAP-FILLING > 250 µm
IMPACT-RESISTANT
GAP-FILLING > 250 µm
HIGH TEMPERATURE STABILITY +200 °C
HEAT CURINGROOM TEMPERATURE CURING
FASTFIXATION
HIGH TEMPERATURE STABILITY +200 °C
STXATION
HIGH TEMPERATURE STABILITY +200 °C
IMPACT-RESISTANT
GAP-FILLING> 250 µm
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Bonding the stator laminations to the housing is more advantageous than conventionally joining these components by pressing or shrinking:
Equalize tensions between the stator and housing with dissimilar CTEs
Heat not mandatory More cost-effi cient production Improved acoustics by damping properties
of the adhesive Larger production tolerances possible
Brushless DC motor © ebm-papst
Bond stator to housing
Your benefits High temperature stability up to +200 °C Fast light fi xation for short cycle times
(DELO-ML DB) Accelerated curing with activator (DELO-ML) Curing at room temperature
(except for DELO MONOPOX)
DELO-DUOPOXSJ8665
2C epoxy
Peel resistance
Curing can be accelerated by heat
DELO MONOPOXAD066
1C epoxy
Good fl ow behavior
DELO-MLDB135DB180DB154
Dual curinganaerobic / light
Fixation in less than 10 s with DELOLUX 80
DELO-ML5327
Anaerobic curing
Fast fi xation with activator
DELO-MLUB160
Anaerobic curing
Fast fi xation with activator
AD = ADhesive DB = Dual Bonding SJ = Structural Joining UB = Universal Bonding
Find the right adhesive …
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Similar to shaft-to-hub bonds in mechanical engineering, the shaft of e-motors is bonded to the bearing, rotor package and commutator. Anaerobic, low-viscous adhesives are preferred as the bonding gap is narrower due to very low tolerances. Adhesive bonds have the following advantages over classical form- or force-closed joints:
Low component production costs Easy to automate No clearance, no slip No friction or contact corrosion
Shaft bonding
Your benefits Fast fi xation by activator or light (DELO-ML) Curing at room temperature
(DELO-ML, DELO-DUOPOX) Very high temperature stability up to +220 °C
(DELO MONOPOX)
Collector to shaft with DELO MONOPOX HT
© metabo
Find the right adhesive …
AD = ADhesive DB = Dual Bonding HT = High Temperature
HEAT CURINGROOM TEMPERATURE CURING
DELO MONOPOXAD066
1C epoxy
Good fl ow behavior
DELO MONOPOXHT2860
1C epoxy
Temperature stability up to +220 °C
Impact resistance
DELO-MLDB135DB154
Dual curinganaerobic / light
Fixation in less than 10 s with DELOLUX 80
DELO-ML5327
Anaerobic curing
Temperature resistance up to +200 °C
Fast fi xation with activator
DELO-DUOPOXAD840
2C epoxy
Peel resistance
FASTFIXATION
HIGH TEMPERATURE STABILITY +200 °C
ASTXATION
HIGH TEMPERATURE STABILITY +200 °C
IMPACT-RESISTANTIMPACT-RESISTANT
GAP-FILLING> 250 µm
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Casting compounds are used in e-motors to protect sensitive components from humidity, media or mechanical stress. Therefore, DELO’s adhesives are used in the automotive industry due to these special challenges. Possible applications:
Secure coil wires against vibration Cover soldered and welded contacts to protect them
against corrosion Partial protection of windings from abrasive
substances Stator casting
Cast & cover
Your benefits Excellent resistance to aggressive substances
(e. g. gear oil) Outstanding thermal resistance and low thermal
expansion combine to minimize tensions between cast and component
Very fast fi xation or curing by light
Motor for power toolsStator of an automotive
drive module
Protection of thestator windings
Partial protectionof the windings
Contact protection
AD = ADhesive CR = Casting Resin GE = General Encapsulant
DELO MONOPOXGE727
1C casting resinCTE 11 ppm / K
DELO- DUOPOXCR8715
2C casting resinCTE 29 ppm / K
DELO MONOPOXGE785
1C casting resinHigh run resistanceCTE 22 ppm / K
DELO DUALBONDAD761
Dual curing light / heatIrradiation time of 30 s or less with DELOLUX 80
DELO DUALBONDAD465
Dual curing light / heatFast light curing in less than 4 s with DELOLUX 80
DELO-DUOPOXCR8031
2C casting resinCuring can be accelerated by heat
DELO KATIOBOND45952
Light-activatedIrradiation time of 60 s or less with DELOLUX 80
DELO DUALBONDAD4950
Dual curinglight / humidityFast light curing in less than 10 s with DELOLUX 80
HEAT CURING
DC
2Cah
DG
1C
HROOM TEMPERATURE CURING
BOND50
uringhumidityght curing than ith LUX 80
DELO-DUOPOXCR8715
2C casting resinCTE 29 ppm /K
DELO MONOPOXGE785
1C casting resinHigh run resistanceCTE 22 ppm / K
DELO DUALBONDAD761
Dual curinglight / heatIrradiation time of 30 s or less with DELOLUX 80
DELO DUALBONDAD465
Dual curinglight / heatFast light curingin less than 4 s withDELOLUX 80
G
Find the right adhesive …
HIGH RELIABILITY LOW CTE FAST
FIXATIONLOW CTE FAST FIXATION
HIGH FLEXIBILITY
Potting Compounds and EncapsulantsPa
Potting Compounds
and Encapsulants
Reliable Protection
of Components
The
perf
ect a
dhes
ive
for
any
pott
ing
or e
ncap
sula
tion
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ADDITIONAL BONDING TASKS A COMPREHENSIVE OVERVIEW
of pretreatment methods can be found in the “BOND it – Reference Book on Bonding Technology”.
Lab expertiseDELO is a technology leader, generating about 30 percent of its sales revenues with products developed in the last three years. In addition, 15 percent of revenues are invested in the research and development of adhesives and associated equipment.
These statistics are a result of the enormous laboratory expertise in the Windach headquarters: Comprehensive
analytics and lab tests make it possible to fi nd the right adhesive for every bonding task, including those in e-motor bonding.
In addition to chemical-physical characterization of adhesives, life cycle tests, application-specifi c test methods and process simulations are performed.
www.youtube.com/ DELOadhesives
E-MOTOR PROCESS VIDEO
IDEA DESIGN PROTOTYPE INTEGRATION PRODUCTION ONGOING SUPPORT
The data and information provided are based on tests performed under laboratory conditions. Reliable information about the behavior of the product under practical conditions and its suitability for a specific purpose cannot be concluded from this. It is the customer's responsibility to test the suitability of a product for the intended purpose by considering all specific requirements and by applying standards the customer deems suitable (e. g. DIN 2304-1). Type, physical and chemical properties of the materials to be processed with the product, as well as all actual influences occurring during transport, storage, processing and use, may cause deviations in the behavior of the product compared to its behavior under laboratory conditions. All data provided are typical average values or uniquely determined parameters measured under laboratory conditions. The data and information provided are therefore no guarantee for specific product properties or the suitability of the product for a specific purpose. Nothing contained herein shall be construed to indicate the non-existence of any relevant patents or to constitute a permission, encouragement or recommendation to practice any development covered by any patents, without permission of the owner of this patent. All products provided by DELO are subject to DELO’s General Terms of Business. Verbal ancillary agreements are deemed not to exist.
© DELO – This brochure including any and all parts is protected by copyright. Any use not expressly permitted by the Urheberrechtsgesetz (German Copyright Act) shall require DELO’s written consent. This shall apply without limitation to reproductions, duplications, disseminations, adaptations, trans lations and microfilms as well as to the recording, processing, duplication and / or dissemination by electronic means.
CONTACT
Singapore Phone +65 6807 0800 [email protected] www.DELO-adhesives.com/en
Malaysia · Kuala Lumpur Phone +65 6807 0800 [email protected] www.DELO-adhesives.com/en
Headquarters Industrial Adhesives
Germany · Windach / Munich Phone +49 8193 9900-0 [email protected] www.DELO.de
China · Shanghai Phone +86 21 2898 6569 [email protected] www.DELO-adhesives.com/cn
South Korea · Seoul Phone +82 31 450 3038 [email protected] www.DELO-adhesives.com/en
USA · Sudbury, MA Phone +1 978 254 5275 [email protected] www.DELO-adhesives.com/us
Taiwan · Taipei Phone +886 2 6639 8248 [email protected] www.DELO-adhesives.com/cn
Dispensing Curing ConsultingAdhesives
09/17
Headquarters Industrial Adhesives
Germany · Windach / MunichPhone +49 8193 [email protected]
China · ShanghaiPhone +86 21 2898 [email protected]/cn
Japan · YokohamaPhone +81 80 1579 [email protected]/en
SingaporePhone +65 6807 [email protected]/en
Malaysia · Kuala LumpurPhone +65 6807 [email protected]/en
South Korea · SeoulPhone +82 31 450 [email protected]/en
USA · Sudbury, MAPhone +1 978 254 [email protected]/us
Taiwan · TaipeiPhone +886 2 6639 [email protected]/cn
Thailand · BangkokPhone +66 2737 6420 Ext. [email protected]/en
