Therefore, the liner materials should be required to have both very high surface to resist the drilling and cutting of ore and very high strength and toughness to resist impact Lord.
All requirements of high surface hardness and resistance, good toughness and center of all steel products to carburizing.
凡是要求表面具有较高的硬度和耐磨性，而中心具有良好韧性的所有钢制品都要进行渗碳。
3
Carburizing and quenching, with high surface hardness, good toughness characteristics, the heart of cold plastic deformation of medium, cutting is good.