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我厂采用交流电焊机局部加热铁铬铝电阻丝,以获得塑性利于维修加工。目前,我厂热处理车间使用的加热元件都是铁铬铝(Cr_(25)Al_5)丝。新的原材料具有一定的冷塑性,可以一次绕制成所需要的形状,但当一经进入高温区(不管是焊接或安装后的随炉升温)冷塑性就消失了,稍有震动就会断裂,因此给维修带来困难。要恢复塑性还必须加热至300℃以
I plant using AC welding local heating iron chromium aluminum resistance wire, plasticity in order to obtain maintenance and processing. At present, the heating elements used in our factory heat treatment workshop are all iron chromium aluminum (Cr_ (25) Al_5) wire. The new raw material has a certain degree of cold plasticity and can be wound into the desired shape at once. However, the cold plasticity disappears upon entering the high temperature zone (whether in the furnace or after installation) So bring difficulties to maintenance. To restore the plastic must also be heated to 300 ℃