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为了改变75千瓦箱式电炉加热时,炉门部位温度偏低的现象,可在炉门上增加一组电阻丝。这样不仅保证了退火质量,还可缩短升温时间。
In order to change the 75 kilowatts box-type electric furnace heating, the door temperature is low, the door can be increased by a group of resistance wire. This not only guarantees the quality of annealing, but also shortens the heating time.