应用多元系亚正规溶液模型计算了CaO-MgO-Al2O3-SiO2和CaO-MnO-Al2O3-SiO2系各组元的活度,并以此为基础建立了钢液脱氧和氧化物夹杂控制的热力学模型,用于炼钢过程脱氧、渣-金平衡和氧化物夹杂-钢液平衡的热力学计算,以控制钢液脱氧和氧化物夹杂成分.在钢包精炼的渣-金平衡条件下钢液硅脱氧和铝硅脱氧后钙处理的工业性实验,以及钢液凝固过程形成的钢中氧化物夹杂分析结果说明,该热力学模拟方法可用于钢包精炼中钢液的脱氧控制和钢中氧化物夹杂控制.
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