工具车间制作高速钢铰刀原来采取三次回火工艺。将铰刀放在H—45型箱式电炉中,回火温度570℃,每次在炉内保温1小时,然后由炉中取出自然冷却。仅炉内保温,累计时间即3小时,生产周期较长,手续繁琐。工具车间热处理小组和技术科技术人员相结合,在车间推广优选法领导小组的领导 Tool workshop production of high-speed steel reamer originally taken three tempering process. The reamer on the H-45 box electric furnace, tempering temperature of 570 ℃, each in the furnace insulation for 1 hour, and then removed from the furnace natural cooling. Only the furnace insulation, the cumulative time that 3 hours, longer production cycle, procedures cumbersome. Tool workshop heat treatment group and technical staff combined to promote the best law leadership in the workshop leadership