齿轮在工具机上甚关重要,共热处理问题至今在我局各厂中尚未能澈解决。特将常用的几种方法介绍如下,以供参考。 加工之前,段胚必须在炉中冷却,至少须埋在乾灰或沙中令其缓缓冷却,不能随便在假胚後丢成一堆,任其自流。其次,为形成均匀的易於机械加工的内部组织,可加退火或常火。 Gear is very important in the machine tool, so far the problem of heat treatment has not yet been solved in our factory. Several commonly used methods are described below, for reference. Before processing, the segment embryos must be cooled in the furnace, at least to be buried in the dry ash or sand to make it slowly cooling, can not just leave the pile after the artificial embryo, let it flow. Secondly, in order to form a uniform and easily machined internal organization, you can add annealing or fire.