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316L stainless steel plate corrosion principle

316L stainless steel plate corrosion principle

1.The surface of the stainless steel deposits with dust or heterogeneous metal particles containing other metal elements. In humid air, the condensed water between the attached material and the stainless steel is connected to a microcell, causing an electrochemical reaction to protect The membrane is damaged, called electrochemical corrosion. 
2. Stainless steel plate surface adhesion of organic juice (such as melons, soup, sputum, etc.), in the case of water and oxygen, constitute organic acids, long time the organic acid corrosion of metal surface. 
3. Stainless steel surface adhesion contains acid, alkali, salt substances (such as decorative walls of alkaline water, lime water splash), causing local corrosion. 
4. In contaminated air (such as containing a large amount of sulfide, carbon oxides, nitrogen oxide atmosphere), in case of condensate, the formation of sulfuric acid, nitric acid, acetic acid liquid point, causing chemical corrosion. The above can cause damage to the surface of the stainless steel protective film caused by corrosion.

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