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表面硬化处理是针对基体材料(母材)某些性能的不足,使之改善或添加新的性能的重要手段。对于锻模,施行表面处理的目的主要是改善下列特性:(1)耐磨性,(2)抗烧伤、抗粘着性,(3)耐冲击性,(4)抗热疲劳性,(5)疲劳强度,(6)耐腐蚀性等。 1.各种表面硬化处理法目前较实用的各种表面处理方法如表1所示,其中即有传统的镀铬法,也有最新发明的TD法、CVD法和PVD法。但锻模所采用的表面硬化处理
Hardfacing is an important means of addressing some of the properties of a base material (base metal) to improve or add new properties. For forging dies, the purpose of the surface treatment is mainly to improve the following properties: (1) wear resistance, (2) burn resistance, tack resistance, (3) impact resistance, (4) thermal fatigue resistance, Fatigue strength, (6) corrosion resistance and the like. 1. A variety of surface hardening treatment Currently more practical method of various surface treatment as shown in Table 1, which is the traditional chrome plating method, but also the latest invention of the TD method, CVD and PVD method. But the forging used by the surface hardening treatment