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一、炉外精炼的任务近20年来,由于现代化工业的发展,对钢的质量提出愈来愈高的要求;另一方面由于真空技术、工业规模的制氧制氩技术以及电磁搅拌技术的发展和完善,使炼钢技术发生了巨大的变化,由传统的转炉、电炉炼钢发展为炉内初炼——炉外精炼新技术。所谓炉外精炼就是把一般炼钢炉内要完成的精炼任
First, the task of refining the furnace Nearly 20 years, due to the development of modern industry, the quality of steel put forward higher and higher requirements; the other hand, due to vacuum technology, industrial-scale oxygen production of argon and electromagnetic stirring technology development And perfected, the steelmaking technology has undergone tremendous changes. From the traditional converter and EAF steelmaking, it has developed into a new primary refining furnace-refining technology outside the furnace. The so-called furnace refining is to refine the general steel furnace to be done