长期以来,冶金工作者都在探讨非高炉炼铁的技术,其方法也有上百种之多,但得到工业推广的却不多。至于不经过生铁而直接得到钢的问题,更是世界范围内冶金工作者共同的愿望,并进行了大量的研究工作。其中,在电炉中使用海绵铁或金属化球团炼钢的工艺,已日趋成熟,并日益得到工业化推广。 For a long time, metallurgical workers are discussing the technology of non-blast furnace ironmaking, and there are hundreds of methods for it. However, there is not much industrial promotion. The problem of obtaining steel directly without passing through pig iron is a common aspiration of metallurgists throughout the world and a great deal of research has been done. Among them, the use of sponge iron or metallized pellet steelmaking process in the electric furnace has matured, and increasingly industrialized promotion.