金属学报  1979, Vol. 15 Issue (4): 526-539

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电渣重熔过程中氧化物夹杂去除机理的探讨

傅杰

北京钢铁学院

AN INVESTIGATION OF MECHANISM ON THE REMOVAL OF OXIDE INCLUSIONS DURING ESR PROCESS

Fu Jie Beijing Institute of Iron and Steel Technology

傅杰. 电渣重熔过程中氧化物夹杂去除机理的探讨[J]. 金属学报, 1979, 15(4): 526-539.
. AN INVESTIGATION OF MECHANISM ON THE REMOVAL OF OXIDE INCLUSIONS DURING ESR PROCESS[J]. Acta Metall Sin, 1979, 15(4): 526-539.

摘要 参考文献 相关文章 Metrics 全文: PDF(1770 KB)   摘要: 对电渣重熔过程中氧化物夹杂去除机理进行了探讨。试验结果指出,三氧化二铝夹杂能够有效地从金属液转入含30％Al_2O_3和7％SiO_2的CaF_2-Al_2O_3-SiO_2渣液内。渣钢界面上(SiO_2)对[Al]的氧化不导致钢中氧化物夹杂增加。大气中的氧对去除氧化物夹杂不利。作者认为界面能变化对电渣重熔过程中氧化物夹杂的行为具有重要的影响。渣钢作用去除氧化物夹杂的热力学条件应为: ΔF=(σ_(渣-夹杂)-σ(钢-夹杂))2πRh+σ_(钢-渣)πr~2<0 从界面能的观点出发,也许可以解释为什么当夹杂物团迁移到金属自由表面或耐火材料金属界面时会倾向保留于该处。 Abstract：The mechanism on the removal of oxide inclusions during ESR process hasbeen investigated. The alumina inclusions may effectively migrate from moltenmetal into CaF_2-Al_2O_3-SiO_3 liquid slag pool contained 30% alumina and 7%silica. The oxidation of Al by SiO_2 at the slag/metal interface did not result anincrease of alumina inclusions in metal. Atmospheric oxygen was found to be de-leterious for the removal of alumina inclusions. It has been proposed that thevariation of interface energy may directly affect the behaviour of oxide inclusions inESR process. The thermodynamic requirements for removal of oxide inclusionsby the slag/metal interaction should be: ΔF=(c-σ_(m/i))2πRh+σ_(m/s)πr~2<0where σ_(s/i), σ_(m/i) and σ_(m/s)——interface energy of slag/inclusion, metal/inclusionand metal/slag interaction respectively. From viewpoint of interface enrgy, an explanation would be possible to cla-rity why the migration of the oxide inclusion clusters tends to stay along the freesurface of metal or the refractory/metal interface. 收稿日期: 1979-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 傅杰 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1979/V15/I4/526 [1] 1960, № 9, 17． [2] 傅杰,朱觉,金属学报,7(1964) ,250． [3] 1968, № 3, 57． [4] 傅杰,曲英等编译,电渣冶金文集,中国工业出版社,1965年,p.167． [5] 1971, № 12, 14． [6] 1968． № 2, 115． [7] Hans-Jurger, K., Mathis, P. und Chondhurg, A., Arch. Eisenhuettenw., 41 (1971) , 299． [8] Kay, D. A. R. and Pomfret, R. J., J. Iron Steel Inst., London, 209 (1971) , 962． [9] Mitchell, A. and Burel, B., Met. Trans., 1 (1970) , 2253． [10] 1975, № 3, 62． [11] 1970, № 6, 36． [12] Elliott, J. F., Lguchi, Y. and Chiang, T. H., Elec. Furnace. Proc., 35 (1977) , 268． [13] 1974, № 6, 68． [14] 傅杰,陈恩普, 朱觉,金属学报,8(1965) ,8． [15] 1963, 72． [16] Fraser, M. E. and Mitchell, A., Ironmaking Steelmaking, 3 (1976) , 279． [17] 1968, № 2, 9． [18] 1976, № 4, 71． [19] 1971, № 11,18． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed