我厂过去对高速鋼車刀、長刃鑽头等長形工件,是在淬火、回火冷却过程中来校直变形的。具体方法是这样的: 工件的热处理在鹽浴爐中进行,整个过程如图1所示。在550℃等温处理5～10分鐘后,把工件取出,擦去表面上沾附的鹽浴和少量的氧化皮,放 I plant in the past on the high-speed steel turning tools, long edge drill bits and other long workpieces, quenching, tempering cooling process to straighten out the deformation. The specific method is this: the heat treatment of the workpiece in the salt bath furnace, the entire process shown in Figure 1. After isothermal treatment at 550 ° C for 5 to 10 minutes, remove the workpiece, wipe off the salt bath attached to the surface and a small amount of scale, put