导电结晶器电渣重熔空心钢锭电场和温度场的数值模拟  

Numerical simulation of electric and temperature fields for ESR hollow ingot with current-conductive mold

作　　者：景馨[1] 姜周华[1] 刘福斌[1] 陈旭[1] 段吉超[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004

出　　处：《材料与冶金学报》2013年第3期203-208,共6页Journal of Materials and Metallurgy

基　　金：国家自然科学基金(51204041)

摘　　要：建立了导电结晶器电渣重熔空心钢锭的数学模型.利用有限元软件ANSYS对导电结晶器电渣重熔空心钢锭进行了稳态的电热耦合分析,计算了不同供电方式对电渣重熔空心钢锭体系温度场的影响,进而分析了体系电场和温度场分布对空心钢锭质量的影响.不同供电方式对重熔体系电场、温度场影响的计算结果表明:采用外结晶器导电的电极,能促进电渣池温度均匀,进而使金属熔池更加浅平、均匀.A mathematical model of the electroslag remelting of hollow ingot with current-conductive mold was established.A steady-state electro-thermal coupling field was simulated with ANSYS software.The effect of different power supply methods and number of electrodes on the temperature field of ESR system was calculated and the impact of system temperature distribution on the hollow ingot quality was analyzed.The calculated results showed that the electrode with an outer mold transmitting the electric current is beneficial for the slag pool to have an uniform temperature and for the metal bath to give an uniform and a shallow state.

关 键 词：导电结晶器 电渣重熔 空心钢锭 温度场 数值模拟 

分 类 号：TF744[冶金工程—钢铁冶金]