【摘要】 以CaO-SiO2(22·4%)-Al2O3(11·6%)-CaF2(10%)精炼渣作为基础渣系,添加BaO或Li2O,固定(CaO+BaO或Li2O)/SiO2=2·5,研究渣系熔点和粘度等熔体特性的变化。结果显示加入BaO、Li2O可以明显降低渣系的熔点和粘度,有效改善渣钢反应的动力学条件。当(BaO,Li2O)=15wt%时,熔渣的熔点分别为1267℃和1185℃,远低于作对比的基础渣的熔点1326℃,当温度为1475℃时,熔渣粘度分别为0·98Pa·s和0·51Pa·s,远小于基础渣的粘度1·79Pa·s,使渣系具有良好的流动性,将显著提高炼钢精炼渣的精炼性能。更多还原

【Abstract】 A refining slag of CaO（ bal） -SiO₂（ 22.4%） -Al₂O₃（ 11.6%） -CaF₂（ 10%） was selected as the basic slags. The effect of additives （BaO or Li₂O） on melting point and viscosity of CaO-based slags was studied when the ratio of （CaO+BaO or Li₂O） /SiO₂ was fixed at 2.5. The results showed that the melting point and viscosity of slags decreased by adding BaO or Li₂O into CaO-based slags, the dynamics condition of metal slags reaction was improved effectively. When （Li₂O or BaO） =15%, the melting point （1185℃,1267℃） of slags were much lower than that （1326℃） of slag without additives, the viscosity（0.51Pa·s, 0.98 Pa·s）of slag at 1475℃ was much lower than that （1.79 Pa·s） of slag without additives. The fluidity of slags was good enough to satisfy the requirement of the melting capacity of fluxes.更多还原