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topic 60674

Teflon coating on SUS304 Automotive parts

January 24, 2018

Q. Hello!

Could I have advice on the following?

* System: gasoline injector
* Part to be coated: guide ring SUS304
- 3.7 ± 0.05 mm square pillars with height 5 ± 0.1 mm
- Important, the four corners are rounded by final diametral length of 4.82 ± 0.005 ( diagonally) which shall fit to the outside bore with interference; coating purpose is to minimise the metal to metal stick slip on those corners when assembling.

* Operating conditions:
- Media Fuel E100, M30 contact (Temp: -40~110 °C)
- General tolerance max. 7 ??
- Injector as assembled
* Op. temp: Max. 150 °C
* Vibration level: Max. 20G

- Business
* Amount 100K to 300K per year

Any advice on the coating solution and pricing is appreciated in advance.

Best Regards,

James Lee
Solution Provider and supplier - Seoul, South Korea
  ^- Privately contact this inquirer -^

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