3Cr13钢连杆及销轴热处理工艺的改进  

Research on Improvement for Heat Treatm ent Process of Connecting Rod and Pin Made of 3Cr13 Steel

作　　者：夏书敏[1] 张贞明 

机构地区：[1]江汉大学机电工程系,湖北武汉430019 [2]国营461厂,湖北武汉430084

出　　处：《热加工工艺》2000年第3期39-40,共2页Hot Working Technology

摘　　要：通过对 3Cr13钢连杆及销轴零件冲击韧度不足原因的分析研究和工艺试验 ,认为奥氏体化温度偏低 ,奥氏体组织不均匀 ,使获得的淬火马氏体组织不均匀 ,是导致零件回火后冲击韧度不足的主要原因 ;回火温度偏低及回火冷却速度偏缓等 ,是零件冲击韧度不足的另一原因。适当提高奥氏体化温度及回火温度 ,加快回火冷却速度 ,零件的冲击韧度提高 。This paper has researched the reasons of which impact toughness of connecting rod and pin was lower than that of demanded.The main reason was the quenching temperature not enough high for the parts made of3Cr13 steel.The other reasons were lower tempering temperature and slower temper cooling rate.After improvement the impact toughness of the parts has been increased.

关 键 词：冲击度 连杆 销轴 锚绞机 热处理 工艺改进 

分 类 号：U664.44[交通运输工程—船舶及航道工程] TG162.71[交通运输工程—船舶与海洋工程]