一、绪言自从1985年6月停了铸锭生产线以来,索里梅公司现已形成单一的生产线(图1):高炉—鱼雷罐脱硫—转炉—钢包吹氩搅拌调整成分—连铸—板坯加热炉—热轧机。该公司炼钢厂装备有两座310吨LET转炉,低硅铁水用碳化钙或石灰进行预脱硫后再冶炼。现生产水平为年产400万吨钢,有50％的时间只用一座转炉来保证生产。两台 INTRODUCTION Since the cementation of the ingot production line in June 1985, the company has now formed a single production line (Fig. 1): Blast furnace - torpedo desulphurization - converter - ladle blowing argon stirring adjustment composition - continuous casting - slab Heating furnace - hot rolling mill. The company’s steelworks is equipped with two 310-ton LET converters, which are pre-desulfurized with calcium carbide or lime for smelting. Production level is now an annual output of 4 million tons of steel, 50% of the time only one converter to ensure production. Two