Two-dimensional comprehensive mathematical model for electroslag remelting process with pipe electrode
作者机构：School of Material and MetallurgyUniversity of Science and Technology LiaoningAnshan 114051LiaoningChina School of MetallurgyNortheastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Marine EngineeringAnshan 114051LiaoningChina
出 版 物：《Journal of Iron and Steel Research(International)》 (钢铁研究学报（英文版）)
年 卷 期：2021年第28卷第1期
页 面：19-28页
核心收录：
学科分类：08[工学] 0806[工学-冶金工程] 080601[工学-冶金物理化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学]
基 金：The authors gratefully express their appreciation to Natural Science Foundation of China(No.51974153,No.U1960203) the Joint Fund of State key Laboratory of Marine Engineering and University of Science and Technology Liaoning(SKLMEA-USTLN-201901,SKLMEA-USTL-201707) the China Scholarship Council(201908210457).
主 题：Pipe electrode Solid electrode Electroslag remelting Mathematical model Molten metal pool
摘 要：Taking the electroslag remelting with pipe electrode(ESR-PE)and electroslag remelting with solid electrode(ESR-SE)as the research objects,a two-dimensional steady-state mathematical model of coupled electromagnetic field equation,energy equation,and flow equation was established.The distribution of its current density,Joule heat,flow field,and temperature field was compared and the difference of their molten metal pool was analyzed.The results show that compared with those of ESR-SE,current density distribution and Joule heating area of ESR-PE are mainly concentrated in the inner and outer wall areas of the electrode tip,while the Joule heat generated in the central area of the slag pool is less.In the ESR-PE,the slag flows from the outside of the electrode to the hollow area of the electrode,which makes the temperature distribution in the slag pool is more uniform.Affected by the Joule heating area and flow field,the heat of ESR-SE is concentrated below the electrode in the slag pool area and it transfers from the center to the periphery.However,in the ESR-PE,the heat is concentrated near the inner and outer walls of the electrode tip,and the heat is transferred from the periphery to the center of the slag pool.The molten metal pool depth of ESR-SE is 0.1188 m and that of ESR-PE is 0.0962 m.Compared with that of ESR-SE,the molten metal pool of ESR-PE is shallower and flatter.
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