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井式电阻加热炉常用作热处理工件的淬火、正火、退火、回火等。我们经过长期使用和自己设计制造井式电加热炉的经验体会作了如下改进: 现有的热处理设备设计中,对井式电阻加热炉一般认为由于井式炉的炉盖在上方,考虑到炉口由于密封不严而漏气,热损失很大,而炉底由于散热面积较大炉温也常偏低,所以认为在功率分配上,上区功率应超过平均功率的20～40％,下区应超过平均功率的5～10％,所以对于井式电阻炉整个炉体功率分配上认为应是:
Well-type resistance furnace commonly used for heat treatment of the workpiece quenching, normalizing, annealing, tempering and so on. After long-term use and their own experience in designing and manufacturing well-type electric heating furnace made the following improvements: In the existing design of heat treatment equipment, well-type resistance furnace is generally considered to be due to the pit furnace lid above, taking into account the furnace Mouth due to tightness and leaks, heat loss, and the bottom of the furnace due to large cooling area temperature is often low, so that the power distribution, the district power should exceed the average power of 20 to 40%, under District should exceed the average power of 5 ~ 10%, so for the pit furnace resistance furnace power distribution that should be: