安徽省阜阳专区界首县动力机械厂在大搞轴承运动中,使用了一种土法热处理,处理低碳钢制造的轴承环。由于热处理问题得到解决,制造出的滚珠轴承质量很好,广泛地被用在农具、运输工具、排灌机械以及砂轮机上。并曾送到国外展览。这种热处理方法共分三个步序:第一步是渗碳淬火(工人叫焖火);第二步是回火;第三步是检查。 Specialized in bearing movement, Jieshou County Power Machinery Factory in Fuyang Prefecture, Anhui Province, used a method of heat treatment of indigenous heat to deal with the bearing ring made of mild steel. Due to the heat treatment problem, the ball bearings manufactured are of good quality and are widely used on agricultural implements, conveyances, irrigation machinery and grinders. And was sent to foreign exhibitions. The heat treatment method is divided into three steps: the first step is carburizing (workers called simmered fire); the second step is tempering; the third step is to check.