Why should stainless steel wire mesh be heat treated

Stainless steel wire mesh has always been loved by people, and its corrosion resistance is particularly favored. The surface of stainless steel wire mesh is smooth and bright without rust, which can resist the evil climate. Such a good product must have its special treatment. The stainless steel wire mesh has its characteristics only after heat treatment.
 

The heat treatment skill is also a key link in the production process of the stainless steel mesh. The strength and hardness of the stainless steel mesh after explosive welding increase. The reduction of plasticity is not conducive to the subsequent straightening and application requirements. The process practice of heat treatment is to eliminate the internal stress after explosive recombination. Forward plasticity. However, since the general stainless steel has its own solution treatment principle, it inevitably conflicts with the heat treatment principle of carbon steel, such as ultra-low carbon dual phase 00Crl8Ni5M
 

35100Cr22Ni5M03N and others are easy to separate Fe Cr intermetallic brittle phase when they stay below 950Y for a long time, which will severely deteriorate the plasticity, intergranular corrosion resistance and other functions of stainless steel. However, the general normalizing temperature of carbon structural steel is around 890Y, and long-term over temperature heating will lead to coarse grains and decreased resistance.

Such combinations are particularly important in the selection of heat treatment temperature, holding time and cooling principle. In addition, the heat treatment principle also has a great impact on the shear strength of stainless steel mesh. Take 1Crl8Ni8T1 16Mn stainless steel mesh as an example. When the heat treatment temperature is higher than 400 degrees, the shear strength decreases significantly due to the coarse grains in the bottom layer, but the impact resistance, bending function and elongation can be significantly improved with the advance of the heat treatment temperature.