论文部分内容阅读
在一些中小工厂里,由于设备较少,各热处理工序都在同一电炉内进行,且多为一班生产,因此设备利用率低、热损耗大。我们利用渗碳或淬火后的炉内余热进行锻件的退火、铸钢件消除内应力细化晶粒的退火和灰口铸铁的消除内应力的时效热处理以及调质工件的回火,其效果很好。上述各工艺本应是采用工件装炉后缓慢加热到处理温度,保温一段时间
In some small and medium sized factories, due to the small number of equipment, the heat treatment processes are carried out in the same electric furnace, and more for the production of a class, so equipment utilization is low, heat loss. We use the carburizing or quenching furnace afterheat annealing forgings, steel to eliminate the internal stress grain refinement annealing and gray cast iron to eliminate internal stress aging heat treatment and quenching and tempering of the workpiece, the effect is very it is good. The above process should be used after the workpiece furnace slowly heated to the processing temperature, heat for a period of time