钙基复合脱氧剂作炼钢终脱氧剂的实验与分析
Test and Analysis of Ca-based Compound Deoxidizer Used as Final Deoxidizer in Steel-making
张朝晖, 杨 魁, 巨建涛
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作者单位：(西安建筑科技大学 冶金工程学院, 陕西 西安 710055)
中文关键字：脱氧机理； 复合脱氧剂； 可浇性； 终脱氧
英文关键字：deoxidization mechanism; compound deoxidizer; castability; final deoxidizer
中文摘要：分析了复合脱氧的机理，进行了钙基复合脱氧剂和SiAlFe脱氧剂在转炉出钢过程中的工业性脱氧试验。结果表明：与SiAlFe脱氧剂相比，钙基复合脱氧剂具有脱氧效果良好、净化钢液和改善钢水流动性和可浇性的优点，使钢材的力学性能显著提高，并使合金Si、Mn平均收得率分别提高1.78%和0.68%，每吨钢脱氧成本降低1.75元；从脱氧工艺效果及经济效益考虑，钙基复合脱氧剂适合用作转炉炼钢的终脱氧剂。
英文摘要：The deoxidization mechanism of multi-element compound deoxidizer was analyzed. The industrial deoxidizing test using Ca-based compound deoxidizer was carried out. The results show that compared with SiAlFe deoxidizer,Ca-based compound deoxidizer has advantages, such as well-deoxidization effect, purification molten steel, and improving the flowability and castability of liquid steel, the average recovery rate of Si and Mn can be increased by 1.78% and 0.68%, respectively, and the cost of deoxidation be reduced by 1.75 yuan every tons of steel. In the sight of the process effect and economic benefit of the deoxidation, Ca-based compound deoxidizer is suitable for final deoxidizer in converter steel-making.