【摘要】 在建立辊芯表层电渣加热物理模型和数学模型的基础上,借助于辊芯、电极、渣壳、结晶器、渣金界面对渣池热电场传输的边界条件做了合理的处理,利用大型有限元软件ANSYS,对辊芯表层加热系统中渣池热电场及影响因素进行了模拟研究。结果表明,在辊芯表层和电极之间存在一个强电流区,使辊芯表层被快速加热;随着电压的升高、渣池深度的增加和电极与辊芯间距的减小,渣池中的电场强度和整体温度升高,高温区集中在辊芯与电极之间;电极数量越多,系统的电场分布越均匀。更多还原

【Abstract】 Based on physical and mathematic models of slag heating on the surface of roll core,the thermoelectricity field in the electroslag pool on the surface of roller core and its influencing factors were simulated by ANSYS software,and appropriate thermoelectricity transmission boundary conditions from roller core,electrode,slag hull,water-cooling mould and slag metal boundaries to the slag pool. The results show that a strong current area exists between the roller core surface and the electrode,with which the surface of roll core is heated rapidly.With increasing voltage,or pool depth or the decreasing distance between electrode and roller,the intensity of electrical field and the integrated temperature of the slag pool increase.The high temperature zone is concentrated between the roller core and the electrode.With increasing the number of the electrodes,the electrical field is distributed more uniformly.更多还原