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常用的电炉丝或电炉带如铁铬铝和铬镍电热合金,这两种合金都可以进行焊接。如果焊接的质量不好,会降低电热合金元件的使用寿命,铁铬铝电热合金元件,还会产生脆性,影响电热合金元件的顺利按装,甚至在按装时即行折断。铁铬铝电热合金的组织是单相铁基固溶体,在焊接时所生长的粗大晶粒不能用随后热处理的方法将其消除。铁铬铝电热合金的缺点之一是可焊性较差,因此铁铬铝电热合
Commonly used electric wire or electric furnace with such as chrome-aluminum and chrome-nickel electric alloy, both alloys can be welded. If the quality of welding is not good, will reduce the service life of electric alloy components, iron-chromium aluminum electric alloy components, but also produce brittle, affecting the smooth assembly of electric heating alloy components, or even broken when installed. The structure of the iron-chromium-aluminum alloy is a single-phase iron-based solid solution. The coarse grains grown during welding can not be eliminated by the subsequent heat treatment. Iron-chromium aluminum one of the shortcomings of poor heat-weldability is poor, so iron, aluminum and aluminum heat