Mould process for the overall strength

Mould should not only have excellent overall strength performance, function and excellent mold performance, so as to improve the service life of the mold, in order to meet this requirement, a based on the mould of the overall strength of surface strengthening process again. To common cold work die steel, the use of low temperature quenching and low temperature tempering processing, can increase the toughness, reduce the brittleness and broken received good effect; For hot-work die steel, the use of high temperature quenching and high temperature tempering treatment, can significantly improve steel are strong toughness and thermal stability.
in addition, also can use thermomechanical treatment. Deformation is the steel strengthening and phase transformation strengthening heat treatment process for the combination of a strong. The toughness of thermomechanical treatment essence is to obtain fine austenite grain size, refined martensite increases the dislocation density and form in the martensite cellular structure, at the same time promote the carbide dispersion hardening effect.