一、前言 1988年索拉克公司敦刻尔克厂总产钢量达到517万吨。其中,采用LBE转炉和RH—OB脱氧器相结合的工艺生产的钢占25％强,图1示出了采用RH—OB生产的一大部分脱碳钢,该钢分为: (1)含碳很低的热轧卷钢约占该厂总产钢量的7％; (2)脱氢厚板钢约占总产钢量的4％; (3)化学热处理钢(加铝+OB处理)约占总产钢量的7％; I. Introduction In 1988, the total steel production of the Sokhailk company in Sorak Company reached 5,170,000 tons. Among them, the use of LBE converter and RH-OB Deoxidizer combination of steel production process accounted for 25% strong, Figure 1 shows the use of RH-OB production of a large part of decarburization steel, the steel is divided into: (1) containing (2) Dehydrogenated sheet steel accounts for about 4% of the total steel production; (3) Chemical heat treated steel (Al plus OB treatment ) About 7% of total steel production;