[問題] SUS420防銹處理
給客戶的冶具用SUS420
但沒幾天就出現一堆銹了
當初是想說較304好加工,但沒想到銹那麼嚴重
在無塵室用也是銹
請問一般要再拿回來做防銹處理是怎麼做呢?
另外,還有熱壓頭,是用SDKD11, 熱處理,研磨
聽加工廠是說在無無塵室用,可不用做防銹
雖沒像上面SUS420那樣銹
但用後,感覺表面變黑黑,像被烤過一樣(之前原品別家做的外觀還是很好)
請問是有什麼不同嗎?
謝謝!
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