大跃进中,我们试验成功利用煤反射炉烟道进行正火的方法,同时也取得了一定的效果,这种方法的优点是经济、质量好。大家知道,正火主要是温度与时间的关系,也就是说,工件只要在适当的时间内加热到一定的温度,然后在空气中冷却,就可以得到满意的结果。利用煤反射炉的烟道就可以在适当的时间内把工件加热 During the Great Leap Forward, we experimented successfully with the method of normalizing the flue of a coal-fired reverberator and achieved certain results. The advantage of this method is that it is economical and of good quality. As we all know, normalizing is mainly the relationship between temperature and time, that is to say, the workpiece as long as heated to a certain temperature in the appropriate time, and then cooled in the air, you can get satisfactory results. The use of coal furnace reflector can be the right time to heat the workpiece