英国钢铁公司研究出一种利用废钢生产优质钢的一步炼钢法。用这种方法熔炼出的钢,表面光洁,夹杂和含氧量极低。据称,这种新方法很经济。它是利用非自耗等离子体电极,与一般利用电弧方法相比,可以缩短熔炼时间。并且还采用惰性气氛,因而不会产生烟尘,可降低熔炼损 British steel company has developed a one-step steelmaking method using scrap steel to produce high-quality steel. The steel melted in this way has a smooth surface, inclusions and very low oxygen content. Allegedly, this new method is very economical. It is the use of non-consumable plasma electrode, compared with the general use of arc method, you can shorten the melting time. And also the use of inert atmosphere, which will not produce smoke, can reduce the melting loss