What are the forms of damage to the surface film of Stainless Steel Wire Mesh?

What are the forms of damage to the surface film of Stainless Steel Mesh?

Black Iron Stainless Steel Wire Mesh has the ability to resist atmospheric oxidation, that is, stainless steel, and also has the ability to corrode in media containing acids, alkalis, and salts, that is, corrosion resistance. However, Black Iron Stainless Steel Wire Mesh's corrosion resistance depends on the chemical composition, mixing state, and use of its own steel. conditions and the type of environmental medium. For example, stainless steel wire, in dry, clean air, has absolutely excellent rust resistance, but it will be transferred to the seaside. In the sea fog contains a lot of salt, it will quickly It will rust; 316 Black Iron Stainless Steel Wire Mesh is good. Therefore, it is not any stainless steel wire mesh, which can resist corrosion and rust in any environment.

The 304 Hot Dipped Galvanized Stainless Steel Wire Mesh produced by the stainless Steel Mesh factory is a thin, strong and stable chromium oxide film (protective film) formed on its surface, which prevents the continuous penetration and oxidation of oxygen atoms and has the ability to resist corrosion. Once due to some For various reasons, the film is continuously destroyed, the oxygen atoms in the air or liquid are continuously infiltrated, or the iron atoms in the metal are continuously separated to form loose iron oxide, and the metal surface is continuously corroded. The damage of the surface film is various. The following are common phenomena in daily life.

The surface of the 304 Anti Corrosion Stainless Steel Wire Mesh is attached with dust or different metal particles containing other metal elements. In the humid air, the condensate between the attachment and the 304 Anti Corrosion Stainless Steel Wire Mesh is connected to the micro-battery, causing an electrochemical reaction, and the protective film is destroyed. for electrochemical corrosion.Organic juices (such as melon, soup, phlegm, etc.) are attached to the surface of stainless steel mesh. In the presence of water and oxygen, organic acids are formed, and organic acids corrode the metal surface for a long time. The surface of ordinary Anti Corrosion Stainless Steel Wire Mesh is attached to substances such as acids, alkalis, and salts. , Such as alkaline water, lime water, causing local corrosion.Stainless steel wire mesh in the polluted air (such as the atmosphere contains a lot of sulfide, carbon oxides, nitrogen oxides), condensed water, forming sulfuric acid, nitric acid, acetic acid liquid points, causing chemical corrosion.