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本文提出一个高温冶炼过程中预测非金属夹杂物沉淀的计算机程序。本研究中,多元硅酸盐溶体的Gibbs自由能由一个基于统计热力学的晶胞模型来计算,该晶胞模型按照氧与周围的阳离子构成的对称和非对称晶胞来描述硅酸盐熔体结构。假定高温冶炼时钢液与非金属夹杂物平衡,钢液中氧化物元素的活度由Wagner交互作用系数来计算,利用本程序可以估计炼钢时沉淀的非金属氧化物的成分,为调整冶炼工艺和提高产品质量提供指导,进一步可计算多元硅酸盐熔体的热力学性质。
This paper presents a computer program to predict the precipitation of non-metallic inclusions during high temperature smelting. In this study, the Gibbs free energy of a polybasic silicate solution is calculated from a unit cell model based on statistical thermodynamics that describes the silicate melt in terms of symmetrical and asymmetric unit cells of oxygen and surrounding cations structure. Assuming high temperature smelting liquid steel and non-metallic inclusions balance, the liquid steel oxide activity by the Wagner interaction coefficient to calculate the use of this program can estimate the composition of the precipitation of non-metallic oxides steelmaking, smelting Process and improve the quality of products provide guidance to further calculate the thermodynamic properties of multicomponent silicate melt.