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研究了含钨高温合金棒材中钨夹杂的形貌、来源及形成原因。研究结果表明,含钨高温合金棒材中钨夹杂的来源是用于合金电极棒焊接的钨电极。氩弧焊钨电极的消耗是钨夹杂形成的原因;结构不合理的等离子弧焊枪导致等离子焊机设备没有形成真正意义的等离子弧,加热能力下降,如果使用的焊接电流越大,熔化的可能性越大,合金出现钨夹杂的几率也越大。
The morphology, source and formation of tungsten inclusions in tungsten-bearing superalloy rods were investigated. The results show that the source of tungsten inclusions in tungsten-containing superalloy rods is the tungsten electrode used for the welding of alloy electrode rods. Tungsten arc welding tungsten electrode consumption is the cause of the formation of tungsten inclusions; unreasonable structure of the plasma arc welding torch led to the plasma welder equipment does not form a real sense of the plasma arc, the heating capacity decreased, if the welding current used is greater, the possibility of melting The larger the alloy, the greater the probability of tungsten inclusions.