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电炉炼钢以废钢为原料,然而废钢的含碳量较低.不能满足炉料熔清所需含碳量的要求.所以,电炉炼钢长期以来都是使用约含碳4％的生铁作为增碳剂,以解决电炉炼钢的配碳问题.由于生铁的短缺和价格的上涨,国内包括天钢在内的许多厂家,都在寻找其它增碳剂.实践表明,采用类石墨作为电炉炼钢的增碳剂,不仅操作工艺简单、钢质稳定、每吨类石墨可代替10t生铁,而且电耗有明显下降,经济效益显著,完全可以取代传统的用生铁增碳的作法.
Electric furnace steelmaking uses scrap as raw material, however, scrap has a low carbon content, which can not meet the requirement for carbon content required for melting of the charge. Therefore, EAF has long used pig iron containing about 4% carbon as carbon Agent, in order to solve the issue of carbon steel for electric furnace steelmaking.Due to the shortage of pig iron and the rise of price, many domestic manufacturers, including Tiangang, are looking for other carburizing agents.Practice shows that using graphite-like as electric steelmaking The carburizing agent not only has the advantages of simple operation process and stable steel, but also can replace 10t pig iron per tonne of graphite, and the power consumption obviously drops, and the economic benefit is remarkable. It can completely replace the traditional practice of pigging carbon with pig iron.