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电弧炉熔炼高合金钢时,为达到所要求规格成分,需要加入大量的各种铁合金。加入量是根据钢水量,要求规格成份,合金元素含量和回收率来计算。由于加入量较多,有的为钢水量的20~30%。因此,在加入时要另追补加入铁合金本身所需达到规格成份要求的量。根据有关资料介绍,较多采用减本身成份法来计算。其计算公式为:
When EAF smelts high alloy steel, a large amount of ferroalloy needs to be added to achieve the required specification. The amount added is based on the amount of molten steel, the required specification components, alloying element content and recovery rate to calculate. As the amount of more, and some of the amount of molten steel 20 to 30%. Therefore, when joining another additional accession to the iron alloy itself to meet the specifications required by the amount of ingredients. According to the introduction of the relevant information, it adopts the method of reducing itself as the basis for calculation. The formula is: