What circumstances will rust stainless steel spring?

Then they will think about it, the original self perceptions of stainless steel spring will rust before is one-sided. Think stainless steel spring does not rust, it is one-sided, wrong. Stainless steel screw has strong corrosive, high temperature resistance, rust resistance and other excellent performance. But is not to say that it has the excellent performance of wire made of stainless steel spring will not rust. Under the certain conditions will rust. Only stainless steel spring spring more than iron is not easy to rust.





then they will think about it, before the original self view of stainless steel spring will rust is one-sided. Think stainless steel spring does not rust, it is one-sided, wrong. Stainless steel screw has strong corrosive, high temperature resistance, rust resistance and other excellent performance. But is not to say that it has the excellent performance of wire made of stainless steel spring will not rust. Under the certain conditions will rust. Only stainless steel spring spring more than iron is not easy to rust. The stainless steel surface to form a layer of a very thin and fine and stable solid rich chromium oxide film ( Protective film) To prevent the oxidation of oxygen infiltration, continue, and ability to resist corrosion. Once you have some reason, this film has been continuously destroyed, air or liquid oxygen in the original
child will constantly infiltration or metallic iron atom separation out unceasingly, forming loose iron oxide, metal surface are also constantly rust.


1, attachments, or heterogeneous metal particles of dust in the humid air, attachments and stainless steel screw condensate, will both together as a micro battery, triggers the electrochemical reaction, protective film is damaged, to call the electrochemical corrosion.


2, stainless steel screw 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.


3, stainless steel surface adhesion containing acid, alkali, salt substances ( Like to decorate the walls of caustic soda, stone splash water) , cause local corrosion.


4, with the help of pollution in the air ( Such as contains a lot of sulfur, oxidation of carbon, nitrogen oxide atmosphere) , encounter condensed water to form sulfuric acid, nitric acid, acetic acid, liquid, chemical corrosion. The above situation can be caused by the destruction of the stainless steel spring surface protective film cause corrosion. So, in order to ensure the surface of the permanent bright stainless steel spring, not rust. We shall have to do cleaning on the surface. Passivation treatment, etc.
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