通过半球点测试仪,对CaO-5%MgO-Al2O3-SiO2-0.5%‘FeO’体系低SiO2区域的炉渣熔化性能进行研究.结果表明:在炉渣中添加少量的SiO2可降低炉渣的熔点;当w(CaO)/w(Al2O3)较小时,炉渣的熔点随着SiO2含量的增加而降低;当w(CaO)/w(Al2O3)较大时,炉渣的熔点随着SiO2含量的增加呈现先降低后升高的趋势;随着四元碱度的增大,炉渣的熔点的总体趋势为先降低后升高.建立了熔化温度与各组分的关系,试验数据与关系式计算结果吻合较好.
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