我厂热处理车间于73年四月建成一条轴承套圈热处理机械化操作线,彻底改变了过去淬火时用钩子和单串挂具象“钩鱼”式的笨重体力劳动状况。经过一年来的生产实践证明,情况是良好的:1.产量提高了1/3～1/2,如210/01原来每个班产量为2500～2700个,现在可达3700～4000个; I plant heat treatment plant in April 1973 to build a bearing ring heat treatment of mechanized operation of the line, completely changed the past quenching with hooks and single string hanger like “hook fish” type of bulky manual labor conditions. After a year of production practice has proved that the situation is good: 1. Production increased by 1/3 ~ 1/2, such as 210/01 The original output of each class is 2500 ~ 2700, and now up to 3700 ~ 4000;