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乌克兰联盟共和国科学院铸造研究所与亚速钢厂,共同研究成功一种用含有稀土的复合变性处理剂,对C_T20碳素镇静钢进行炉外处理新工艺。在亚速钢厂氧气转炉车间现有的条件下,为了生产出非金属夹杂,显微组织及机械性能都符合Ty14-1-2610-79要求的钢,曾试验研究了几种脱氧及炉外处理方案。工业性试验生产的碳素钢,系由350吨转炉冶炼,用铝、硅铁及硅钙合金进行罐内脱氧,然后将钢水罐送到吹氩站,再插入喷枪吹氩7～12分钟,使钢水温度和化学成分达到均匀。钢水经弧型连铸机铸成250×1550～
Institute of Foundry, Academy of Sciences of the Republic of Ukraine and the Asia-speed steel mills, a successful study of a composite modification agent containing rare earth, C_T20 carbon killed steel for a new furnace treatment process. Under the current conditions of the oxygen steelmaking plant in Asia, in order to produce steel with non-metallic inclusions, microstructures and mechanical properties that meet the requirements of Ty14-1-2610-79, several deoxidation and furnace tests have been studied Processing plan. Industrial test production of carbon steel, by the Department of 350 tons of converter smelting, with aluminum, ferrosilicon and calcium-silicon alloy tank deoxidation, and then the steel tank to the argon blowing station, then insert the gun blowing argon 7 to 12 minutes, The molten steel temperature and chemical composition to achieve uniform. Molten steel by arc casting machine into a 250 × 1550 ~