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硅钙(镁)钒复合合金用于冶炼重轨钢代替铝作终脱氧剂。由于消除链状氧化铝夹杂和生成球状氧化物夹杂而提高重轨质量。硅钙(镁)钒复合合金是在电炉内用硅还原石灰、白云石,然后添加钒铁或同时还原五氧化二钒制成。本文提出硅还原法生产硅钙(镁)钒合金的物质传递模型和对冶炼过程进行分析。硅钙(镁)钒复合合金是多相硅化物复合合金,它的主相有:FeSi_2,CaSi_2,VSi_2,FeSi,CaSi,Si及Mg_2Si。这种合金的熔化温度为1410～1474℃,密度为3.11～3.96g/cm~3。
Silicon-calcium (magnesium) vanadium composite alloy for the heavy rail steel smelting instead of aluminum for the final deoxidizer. Heavy rail quality is improved by eliminating the inclusion of chain-like alumina and the formation of spherical oxide inclusions. Silicon-calcium (magnesium) vanadium composite alloy is in the electric furnace with silicon reduction of lime, dolomite, and then add vanadium iron or vanadium pentoxide reduction at the same time made. In this paper, the material transfer model of silicon-calcium-silicon (magnesium) vanadium alloy produced by silicon reduction is proposed and the smelting process is analyzed. Silicon-calcium (magnesium) vanadium composite alloy is heterogeneous silicide composite alloy, its main phase: FeSi_2, CaSi_2, VSi_2, FeSi, CaSi, Si and Mg_2Si. The melting temperature of this alloy is 1410 ~ 1474 ℃, the density of 3.11 ~ 3.96g / cm ~ 3.