高速钢刀具过去均采用焦炭炉钎焊、锭子汕淬火,淬火后在560℃炉中回火2—3次,每次仅回火时间就需1～2小时。这种钎焊方法劳动强度大,工作条件差、工艺流程复杂、生产周期长。为了解决上述问题,改用了气体火焰钎焊。通过一年来的工作实践证明,这种方法是可行的。焊接工艺过程如下: 1.用喷砂设备或用手工工具磨去高速钢刀头表面的一层氧化皮,除去刀窝槽内的油污 High-speed steel tools used in the past brazing with coke oven, spindle Shantui quenching, quenching at 560 ℃ furnace tempering 2-3 times, each time only tempering time required 1 to 2 hours. This brazing method of labor-intensive, poor working conditions, complex process, long production cycle. In order to solve the above problems, the switch to gas flame brazing. Through a year of work practice has proved that this approach is feasible. Welding process is as follows: 1. Use sand blasting equipment or hand tools to wear a layer of high-speed steel cutter head surface oxide layer, remove the oil in the knife pocket