Do you know the reason for the rust of stainless steel expanded metal mesh?

Stainless steel expanded mesh is made of stainless steel. Although stainless steel will not rust, it will still rust if it is not properly maintained. What causes stainless steel expanded mesh to rust:

1. In the process of processing steel mesh, due to the pollution of iron and copper, the protection of argon gas during welding is not good, and oxidation occurs. Stainless steel expanded metal mesh is widely used in the construction of roads, railways, civil buildings, water conservancy, etc., various machinery, electrical appliances, window protection and aquaculture, etc. Various special specifications can be customized according to customer requirements. Expanded mesh is a category in the metal screen industry. It is also called expanded metal mesh, diamond mesh, iron expanded mesh, metal expanded mesh, heavy expanded mesh, pedal mesh, punched aluminum expanded mesh, stainless steel expanded mesh, granary mesh, antenna mesh, filter mesh, audio mesh, etc.

2. Too much damage to the surface of the anti-oxidation layer of stainless steel (stainless acid-resistant steel) in the process of processing, causing it to form oxidation, may cause pollution to stainless steel and cause rust.

3. Some equipment for the production of expanded metal mesh does not take into account the needs of the process. Chemical substances containing acid and sulfur often appear in the process of making expanded metal mesh. Among them, sulfur is relatively corrosive to stainless steel (stainless acid-resistant steel), and stainless steel itself It will also contain sulfur or acid, if it is made into steel mesh and used for steel mesh ceiling or bottom trampling, rust will appear. Climbing frame protective net slope protection steel mesh is a new type of "steel mesh" that replaces steel mesh reinforcement in foundation pit slope protection construction projects. Compared with ordinary steel mesh, steel mesh for slope protection has a higher tensile strength. , The overall structure is strong, light in weight, convenient in construction, low in price and so on. Therefore, stainless steel expanded metal mesh is not rust-proof, and it will also cause corrosion due to improper installation and use.

4. In polluted air (such as the atmosphere containing a lot of sulfide, carbon dioxide (C), and nitrogen oxides), when it encounters condensed water, it will form sulfuric acid, ammonia nitrogen water, and acetic acid liquid points, causing chemical corrosion.