工业电渣重熔过程电极插入深度数学模型及应用  

Mathematical model of electrode immersing depth in industrial electroslag remelting process and application

作　　者：苗志奇 成国光 李世健 陈列[2] 刘治权[3] 李程伟[3] MIAO Zhi-qi;CHENG Guo-guang;LI Shi-jian;CHEN Lie;LIU Zhi-quan;LI Cheng-wei(State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China;Xining Special Steel Co.,Ltd.,Xining 810005,Qinghai,China;Special Metallurgy Department,Xining Special Steel Co.,Ltd.,Xining 810005,Qinghai,China)

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [2]西宁特殊钢股份有限公司,青海西宁810005 [3]西宁特殊钢股份有限公司特冶事业部,青海西宁810005

出　　处：《钢铁》2018年第9期25-29,共5页Iron and Steel

摘　　要：为了预测不同实际电渣重熔过程中合理的电极插入深度,利用Fluent软件中的MHD模型计算得到电渣重熔稳态条件下不同电极插入深度、渣量以及炉渣电导率对应的电阻值,结合实际生产应用的电力制度,建立了工业电渣重熔过程电极插入深度数学模型。通过对比发现,计算值与现场实测值之间的相对误差很小。利用此模型设计了电渣重熔轴承钢所用的渣量及配比,较好地解决了冶炼过程中过度增氧的问题,电渣锭的洁净度明显提高。In order to predict reasonable electrode immersing depth in different electroslag remelting processes,the corresponding slag pool resistance values for different electrode-immersing depths,slag amounts and slag conductivities under steady-state conditions in the industrial electro-slag remelting process were obtained based on the MHD model in Fluent software. Then combined with the actual factory production regulations,an electrode-immersing depth mathematical model was deduced from the relationship of the voltage,the current,the slag weight and the slag conductivity. The results of the comparison between the calculated values and the measured values showed that the relative error of them was very small. The cleanliness of the steel was obviously improved and the problem of the oxidized Al elements and the excessive increase of oxygen was effectively solved by adjusting the slag system and increasing the slag amount in actual production situations based on the aforementioned model.

关 键 词：ESR 电极插入深度模型 数值模拟 MHD 应用 

分 类 号：TF142[冶金工程—冶金物理化学]