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APPLICATIONPROFILE
SYMBIOSIS OF PROVIDING HIGHER EFFICIENCYAND ENERGY CONSERVATIONBalancing energy conservation goals with increased economic activityis a duty every company must meet.
PERFORM WHEN THE HEAT’S ON
If you ignore these goals, you arebound to leave the market.Japanese car electric equipmentOEMs recently adopted Nomex®
brand paper and achieved thesymbiosis of providing higherefficiency and energyconservation.
Until recently, epoxy powdercoating has been widely used aselectrical insulation for automotiveelectrical components includingalternator stator insulation.Epoxy coating of stators is not theonly solution; on the contrary itrequires a lot of process energydue to the thermoset nature ofthe epoxies.
Hitachi Ltd. Automotive ProductsDivision succeeded in reducingenergy consumption required foralternator production throughchanging their manufacturingprocess completely. They decidedStator of the new Hitachi alternator insulated with Nomex® brand paper.
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Product safety information is available upon request. This information corresponds to our current knowledge on the sub-ject. It is offered solely to provide possible suggestions for your ownexperimentations. It is not intended, however, to substitute for anytesting you may need to conduct to determine for yourself the suit-ability of our products for your particular purposes. This informationmay be subject to revision as new knowledge and experiencebecomes available. Since we cannot anticipate all variations inactual end-use conditions, DuPont makes no warranties andassumes no liability in connection with any use of this information.Nothing in this publication is to be considered as a license to operateunder or a recommendation to infringe any patent right.
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to use Nomex® instead of epoxypowder coating, allowing them toavoid the curing process of epoxystator coating. As a result, theyreduced their electric consumptionto one-seventh of their old levels(16% of original).
Other benefits were also seendue to this conversion to Nomex®
thermal insulation technology,including better insulationuniformity and higher productivityby reducing process time &increasing material yield. Finally,by eliminating the epoxy powdercoating, their work area hasbecome dust-free.
In the 21st century, reducingemission greenhouse gases andimproving fuel-efficiency is theduty of car industry in order tocoexist with the society. In theabove case, Hitachi has cutelectric consumption correspond-ing to 52.1kl of petroleum peryear. This activity also thuscontributed toward reducing CO2
emissions as a company. As aresult of this work, “The EnergyConservation Center, Japan”,incorporated foundation,recognized Hitachi as a CenterChairman Prize winner in 2000fiscal year. This reduction willalso be very beneficial as Hitachiworks towards ISO 14000compliance.
Hitachi’s activity has expanded toStarter motors, smaller and higherpower model was released. Andthe technology is also applied totraction motor of Electric Vehicles. In this symbiosis of seeking higher efficiency and energyconservation, the way the carindustry should go drive forwardseems clear.
Making Core
Nomex® Insulation System
Slot insulator insertion
Rust-proof painting
Making Core
Winding
Inlay cutting
Cooling
Curing for dry-hard
Applying epoxy
Pre-Curing
Inlay cutting
Winding
Natural seasoning
Electrical Insulation with Epoxy powder
19500kWh/Month 3100kWh/Month
- 84% Power saving
Du Pont de Nemours International S. A. Advanced Fibres SystemsP. O. Box 50CH -1218 Le Grand-SaconnexGeneva, SwitzerlandTel: +41-22-717-5111Fax: +41-22-717-6218e-mail: [email protected]
The Step of Energy Conservation
Hitachi, LtdAutomotive Products Division4-6 Surugadai, KandaChiyoda-kuTokyo, JapanTel: 81-3-3258-1111Fax: 81-3-3258-5496e-mail: info@[email protected]
