Stainless steel wire mesh is formed on the surface of a layer of a very thin and fine and stable solid rich chromium oxide film has ability to resist corrosion.
Once the film has been continuously destroyed and metal surface are also constantly rust.
The surface membrane damage in the form of many, see more in daily life has the following several kinds.
Stainless steel surface adhesion containing acid, alkali, salt substances, cause local corrosion.
Stainless steel surface adhesion juice, organic matter in water is oxygen, organic acid, organic acid to for a long time and are on the surface of the metal corrosion.
Stainless steel in pollution in the air, in condensate, form sulfuric acid, nitric acid, acetic acid, liquid, chemical corrosion.
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Deposited on the surface of the stainless steel contain other metals attached or heterogeneous metal particles of dust of the content, in the humid air, attachments and stainless steel, the condensed water between the both together as a micro battery, triggers the electrochemical reaction, protective film is damaged, to call the electrochemical corrosion.