quenching intensity

While 9SiCr steel is used to replace Cr12 steel and a new process of double-solution quenching for edge and the whole isothermal quenching is adopted,the .

改用9SiCr钢并采用刃口双液淬火、整体等温淬火热处理,使碳化物均匀圆整,提高了刃口硬度、耐磨性和凸模整体的强韧性,使用寿命显著提高。