回火冷却校直法 我们用回火后局部冷却的方法校直弯曲的轴类零件,取得了令人满意的效果。现推荐介绍如下: 先在距弯曲的轴类零件两端各四分之一处用铁丝拧做吊挂用的吊扣,使吊挂时,弯曲的轴类零件凸面朝下。待将其回火加热后,挂吊扣将轴类零件浸入水中至轴线处,凹面的一半则露出水面。这时 Tempering cooling straightening method We use the method of local cooling after tempering the bending of the shaft parts, and achieved satisfactory results. Now recommended as follows: First of all from the bending of the shaft parts at each end of the quarter with wire to do hanging with the hanging buckle, so hanging, the curved shaft parts convex down. After it is tempered and heated, the hanging buckle will submerge the shaft parts into the water to the axis, and half of the concave surface will be exposed to the water surface. At this moment