60SH高强度链销轴快速球化退火新工艺的应用  

Application on New Process of Rapid Spheroidizing Annealing for 60SH High Strength Chain Pin

作　　者：袁立华[1] 廖杭州[1] 夏金财[1] 闵乃忠[1] 

机构地区：[1]杭州东华链条集团有限公司,浙江杭州311102

出　　处：《热处理技术与装备》2017年第6期38-40,共3页Heat Treatment Technology and Equipment

摘　　要：对GCr15钢采用低温奥氏体化和快速球化退火新工艺,它是利用不均匀的奥氏体中未溶解碳化物或奥氏体中高浓度碳偏聚区的非自发形核的有利作用来加速球化,即利用"离异共析"原理,运用此工艺使60SH高强度链销轴球化退火的等温转变时间减少60%,在节能方面达到40%以上。A new technique of low temperature austenitizing and rapid spheroidizing annealing process is a- dopted for GCrl5 steel. The spheroidizing is accelerated by the beneficial effect of the dissolved carbides in heterogeneous austenite or non-spontaneous nucleation in high concentration carbon segregation zone in austenite, namely applying ＂divorced eutectoid transformation＂ principle. The technique is used to reduce the isothermal transformation time of spheroidizing annealing for 60SH high strength chain pin by 60%, and to achieve more than 40% in energy saving.

关 键 词：低温 快速球化 节能 

分 类 号：TG161[金属学及工艺—热处理]