What kind of effect does heat treatment have on filter screen

      What kind of effect does heat treatment have on filter screen? Filter net has been loved by people, its corrosion resistance is especially valued, filter net surface is flat and bright and will not rust, can resist evil slightly climate. So, such a good product, also must have its special treatment, filter is after heat treatment to have its characteristics. Heat treatment technology in the whole screen production process is also a key link. After blasting welding, the strength and hardness of the filter increases. Reduced plasticity is not conducive to subsequent straightening and application requirements. The process of heat treatment is to eliminate the internal stress after blasting. Progressive plasticity. But because the general stainless steel has their own solution treatment criteria, inevitably conflict with the heat treatment criteria of carbon steel. For example, ultra-low carbon dual phase 00CrL8Ni5M. 3512, 00Cr22Ni5M03N and other long-term stay below 950Y is easy to separate out the brittle phase of Fe-Cr gold, which will severely deteriorate the plasticity of stainless steel, intergranular corrosion resistance and other functions, and the normal temperature of carbon structural steel is generally near 890Y. Long-term superheating will result in coarse grain size and reduced toughness. Such a combination is particularly important in the selection of heat treatment temperature, heat preservation time and cooling criteria. In addition, the heat treatment criterion also has a great influence on the shear strength of the filter screen. Taking the 1Crl8Ni8T1 16Mn filter screen as an example, when the heat treatment temperature is higher than 400 degrees, the shear strength decreases obviously because of the coarse grain at the bottom, but the impact toughness, bending function and elongation can be significantly improved with the progress of heat treatment temperature. In general, heat treatment has a certain effect on the strength of the filter screen.