柴油机凸轮轴热锻模热处理工艺改进  

Improvement on heat treatment process of hot forging die for diesel camshaft

作　　者：曾霞文[1] 朱爱元 夏宁清 

机构地区：[1]湖南工业职业技术学院,湖南长沙410208 [2]滨湖柴油机厂,湖南益阳410000

出　　处：《模具工业》2009年第4期70-72,共3页Die & Mould Industry

基　　金：湖南省教育厅资助项目(07D029)

摘　　要：5CrMnMo制作的热锻模在工作条件下常出现磨损、断裂及变形失效,为使模具获得硬度和韧性良好配合,针对生产实际中的柴油机凸轮轴热锻模,改进了热处理工艺,采用渗硼强化模腔表面,淬火加高温回火强韧化模具基体的复合热处理方法,使热锻模寿命得到了较大提高。Hot forging dies made of 5CrMnMo steel may have wear, crack or deformation failure under its working conditions. In order to get a good rigidity and toughness, the thermal treatment process of a hot forging die for the camshaft of a diesel engine was improved. In this composite heat treatment procedure, boronizing was used to strengthen the cavity surface; quenching along with high temPerature tempering to strengthen and toughen the die base materials; the hot forging die life was thus improved.

关 键 词：热锻模 失效 渗硼强化 

分 类 号：TG162.4[金属学及工艺—热处理]