·242· 北京科技大学学报 1998年第3青 公式(12)~(14)可用于精确地计算1400℃，1500℃和1600℃下MnO-Si0,二元渣系组成范 围为X0,=0.2~0.6(X0=0.8~0.4)的电导率值. 4结论 (I)MnO-SiO,渣系结构的微观组织结构是由：Mn2,O-,SiO,MnO·SiO,和2Mn0·· SO,5类结构单元构成的，结构单元间存在化学平衡. (2)渣系的物理性质（粘度、表面张力、电导率等）取决于这些结构单元的性质和浓度 (3)在一定温度和组成范围内，渣系的粘度、表面张力和电导率可应用数学表达式精确地 计算出来. 参考文献 1 Mill K C.Keene B J.Physical Properties of BOS slags.International Materials Review,1987, 32(1~2):1 2 Volsky A,Sergievskaya E.Theory of Metallurgical Processes.Moscow:MIR Publishers,1978.112 3丁培墉.物理化学北京：冶金工业出版社，1979.262 4张鉴，关于炉渣结构的共存理论.北京钢铁学院学报，1984(I):21 5张鉴.MnO-SiO2渣系作用浓度计算模型.北京钢铁学院学报，1986(4)：I 6德国钢铁工程师协会.渣图集.王俭等译.北京：冶金工业出版社，1989.26】 7牛四通埋弧渣工艺及其物理性质的研究[学位论文]北京：北京科技大学，1994 8张巨洪BASIC语言程序库.北京：清华大学出版社，1985,277 Physical Property Model of MnO-SiO,System Niu Sitong Zhang Jian Cheng Guoguang Metallurgy School,UST Beijing,Beijing 100083.China ABSTRACT From the viewpoints of coexistence theory of the slag structure,the investi- gation on the structural units of MnO-SiO,system and the chemical reactions between them has been carried out.The relationships between the physical properties of the slag and the mass action concentrations of its have been set up at certain temperature and slag composition range,which based on the thermodynamic data of the chemical reactions between the units and the method of linear regression.The calculated data from the model are in good agreement with the measured results.These calculated values are more accu- rate and systematic than those from other expirical and semi-expirical formulas used at present. KEY WORDS slag;coexistence theory;physical property;model