通常,机床导轨高频淬火采用感应因固定、工件匀速移动的方法。我们在研制THK6350型自动换刀数控镗铣床时,对三吨重立柱上的七条导轨(宽为40～140毫米)采用图1所示的方法来淬硬,取得了较好的效果。淬后硬度为HRc45～50,深度为2～3毫米。 从图1可知, 为了使感应留在淬 火时能任意 Usually, the induction hardening of the guide rails of the machine adopts the method of induction and constant movement of the workpiece. When we developed the THK6350 automatic tool changing CNC boring and milling machine, we hardened the seven guide rails (width 40 ~ 140mm) on the three-ton column with the method shown in Figure 1 and achieved good results. Hardness after quenching HRc45 ~ 50, the depth of 2 to 3 mm. As can be seen from Figure 1, in order to leave the induction quenching can be arbitrary