Facing Insufficient and Uneven Hardness of Mould, What Should We Do?
Hardness of mould heat treatment is a very important mechanical property index, and unqualified hardness is a very serious defect. Insufficient hardness or uneven hardness after heat treatment will reduce the wear resistance and fatigue strength of the mould, lead to early failure of the mould, and seriously reduce the service life of the mould.
1) The cross-section of the mould is large and the hardenability of the steel is poor. For example, the steel with low hardenability is selected […]