What are the Consequences of Destroying the Passive Film of Stainless Steel Wire Mesh?
Sep. 23, 2020
As a Stainless Steel Wire Mesh Supplier, I would like to share with you that
destroying the passive film of stainless steel wire mesh will reduce corrosion
Stainless steel wire mesh Stainless steel has good corrosion resistance, high temperature oxidation resistance, good low temperature performance and excellent mechanical properties. Therefore, it is widely used in screening and filtration under acidic and alkaline environmental conditions, chemical packaging, oil screens and other industries. Its main purpose is to prevent corrosion and rust.
Liquid Filtration Wire Mesh
Stainless steel mesh surface oil, rust, non-metallic dirt, low melting point metal contaminants, paint, welding slag during forming, assembly, welding, weld inspection, such as flaw detection, pressure testing and structural marking of stainless steel equipment and components, with Splash, etc., these materials will affect the surface quality of stainless steel equipment and components, destroy the oxide film on the surface, reduce the overall corrosion resistance and local corrosion resistance of the stainless steel mold (including pitting corrosion, crevice corrosion), so as to cause stress corrosion split. The surface cleaning, acid treatment and passivation treatment of stainless steel wire mesh can not only improve the corrosion resistance to a greater degree, but also prevent product pollution and beauty.
The surface of the container made of stainless steel wire mesh and composite steel plate with anti-corrosion standards should be acid treated and passivated. This is used for filtration in the chemical and petroleum industry, because this type of machinery and equipment is used for direct contact with corrosive media. From the viewpoint of ensuring corrosion and corrosion resistance, pickling passivation must be provided. Compared with other industries (for example, for anti-corrosion purposes), stainless steel materials do not need pickling process only because of the need for cleaning and beauty. However, the butt weld of stainless steel equipment should also be pickled and passivated, and the stainless steel mesh passivation film should be repaired to improve rust resistance.
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