How the airport chair passivation of stainless steel?

by:OUHE     2020-05-29
The passivation of the stainless steel chair process: 1. Cleaning oil removal ( Recommend the use of acidic or neutral oil, can't use washing powder) 。 2. Rinse it. 3. Passivation ( In the heat up to 40 degrees passivation solution soak for half an hour to an hour, the appropriate mixing) 4. Rinse it or wash, rinse the surface passivation solution. 5. Pure water ( Chlorine ion with less than 25 PPM of pure water or immerse filter water rinse three minutes) 6. Dry, dry, dry or drying precautions: the guest salt fog test requirements higher, can increase the acid activation process, before the passivation can also increase coordination after passivation process ( Artifacts flush after passivation, add 50 degrees so complexing agent in the bubble is 15 minutes remove to flush in pure water)
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