一、炉外精炼概况 苏联从第十个五年计划开始,炼钢生产的发展重点开始发生变化,由过去追求产量转向注意扩大品种、提高质量、加速科技进步方面来。在确定发展氧气转炉炼钢的同时,还着重抓了钢的合成渣处理、钢包吹氩、真空处理等炉外精炼技术。 First, the profile of the furnace outside the Soviet Union from the tenth five-year plan, the focus of steel production began to change, from the pursuit of output to pay attention to expanding varieties, improve quality, speed up scientific and technological progress. In determining the development of oxygen converter steelmaking, but also focus on the steel synthesis slag processing, ladle argon, vacuum processing and other furnace refining technology.