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一前言电渣重熔是生产高级优质合金钢的一种经济、简便的工艺。该工艺普遍采用以CaF_2为基的渣系重熔,含CaF_2为基的渣系重熔存在着(1)能耗高、(2)对环境污染严重、(3)高纯度CaF_2供应日趋困难等方面的问题。早在七十年代国内外不少电渣重熔工作者就致力于低能耗、无污染的新渣系试验研究,目前,新渣系研究工作正朝着“以氧化物系CaO-Al_2O_3渣系代替氟化物的CaF_2渣系”方向发展。CaO-Al_2O_3渣系重熔能减轻污染、降低重熔电耗(充填比>0.6,比电耗～1000度/T),但存在着熔点高、炼渣时不易起弧引燃、重熔中金属电极的[Si]烧损严重、渣料组成一半是价格颇为昂贵的Al_2O_3粉等工艺、质量以及费用方面的问题。自80年3月开始,我们通过多方案试验
A preface Electroslag remelting is the production of high-quality high-quality alloy steel is an economical and simple process. The process generally adopts slag-based remelting based on CaF_2, and the slag-based remelting based on CaF_2 exists (1) high energy consumption, (2) serious environmental pollution, (3) increasingly difficult supply of high-purity CaF 2 Problems. As early as the seventies many domestic and foreign electroslag remelting workers committed to low energy consumption, pollution-free new slag system test research, at present, the new slag system research work is moving towards “the Department of oxide CaO-Al 2 O 3 slag system Instead of fluoride CaF2 slag system ”direction. CaO-Al 2 O 3 slag remelting can reduce pollution and reduce remelting power consumption (filling ratio> 0.6, specific power consumption ~ 1000 degrees / T), but there is a high melting point, slag ignition is not easy arc ignition, remelting Metal electrode [Si] serious damage, slag composition is expensive Al_2O_3 powder, etc. process, quality and cost aspects of the problem. Since March 1980, we have adopted a multi-program test