zinc die cast parts_zinc die cast parts

In the process of tempering, stainless steel precision castings can effectively eliminate the stress generated during quenching to a certain extent. After quenching, the product decomposes and transforms the martensite and retained austenite metastable structure, and the product is tempered The temperature is usually below the eutectoid transformation temperature, the higher is about 650℃, and the holding time is not less than 2h.