Use of Recycled Calcium Slag for Clean Steel Refining
Calcium slag (CS) is a by-product generated during smelting to extract calcium metal from the ore by aluminothermic reduction method. The melting point, melting speed, viscosities,surface tensions and the refining effects of CS and normal premelted refining slag (NPRS) were measured in the laboratory. Then the plant trials were done in a 150 tons Ladle Furnace (LF) in a steelmaking plant during the refining of clean steel. The results show that the properties of CS are similar to those of NPRS, and CS is a good refining agent not only in laboratory experiment but also in industrial production. By using CS, the average final sulfur content in X70 pipeline steel reaches 25×10-6; the total oxygen content in GCrI5 bearing steel is 5×10-6～8×10-6; the titanium content in GCrI5 bearing steel is less than 20×10.6 and lower than the steels refined by using NPRS.
calcium slag steel refining waste slag recycle clean steel
Dongping ZHAN Huishu ZHANG Wei GONG Zhouhua JIANG Jicheng HE
School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
635-638
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）