What are the important manifestations of the composition of stainless steel mesh belt
Stainless steel mesh belt is woven with stainless steel wire. The quality of stainless steel wire directly affects the quality of stainless steel mesh belt. Good stainless steel wire is composed of chromium and nickel elements to form chromium-nickel stainless steel, which is a better stainless steel. For example, the 304 material commonly used in food mesh belt is Cr18Ni9 stainless steel. A large amount of nickel is added to this stainless steel to obtain a single austenite structure, thereby improving its corrosion resistance and processability. It has strong plasticity and toughness at room temperature and low temperature, is non-magnetic, and has good resistance to intergranular corrosion.
(1) Chromium plays a major role in the corrosion resistance of stainless steel
Chromium is the main element that determines the corrosion resistance of stainless steel mesh belt, because the chromium content in steel can make stainless steel passivate in an oxidizing medium, that is, a very thin film is formed on the surface, and chromium is enriched in this film. The higher the chromium content in steel, the stronger the corrosion resistance. In addition, chromium can play a good role in strengthening the mechanical properties and process properties of steel.
(2) The influence of nickel on stainless steel
It can only be fully manifested when it is combined with chromium. Nickel is an alloying element that forms austenite. When nickel is used in combination with chromium, the metallographic structure can be changed from single-phase ferrite to a dual-phase structure of austenite and ferrite. After heat treatment, the strength can be improved, so that the stainless steel mesh belt has stronger stainless corrosion resistance and good deformation properties.
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