一般热处理、锻造使用的燃煤反射炉主要是靠送煤机把煤送入燃烧室,借鼓风机鼓风燃烧,并将热量吹入工作室加热工件。这种炉子的特点是温差大,温度波动大,温度很不容易掌握。过去这种炉子根本没有测温设备,近几年来才有,那也不过是一般的指示型的测温仪表(如图1),炉温还要靠烧炉工人掌握。因此这种炉 General heat treatment, forging the use of coal-fired refuse furnace is mainly by the coal feed coal into the combustion chamber, by the blower blast burning, and the heat blown into the studio to heat the workpiece. This furnace is characterized by large temperature, temperature fluctuations, the temperature is not easy to grasp. In the past, there was no temperature measuring device in the past, and only in recent years, it is only a general indicating temperature measuring instrument (Figure 1). The temperature of the furnace also depends on the burning worker. So this kind of stove