Acta Metall Sin  1994, Vol. 30 Issue (23): 481-490    DOI:

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MATHEMATICAL MODELLING OF SLAG FLOW FIELD IN ESR SYSTEM

WEI Jihe(WEI Chiho)(Shanghai University);REN Yongli(Xi'an Institute of Metallurgy and Construction Engineering)(Manuscript received 19 February; 1994)

WEI Jihe(WEI Chiho)(Shanghai University);REN Yongli(Xi'an Institute of Metallurgy and Construction Engineering)(Manuscript received 19 February; 1994). MATHEMATICAL MODELLING OF SLAG FLOW FIELD IN ESR SYSTEM. Acta Metall Sin, 1994, 30(23): 481-490.

Abstract References Related Articles Recommended Metrics Download:  PDF(264KB)  Export:  BibTeX | EndNote (RIS)       Abstract  On the basis of the mathematical model of the magnetic field proposed by the authors, a mathematical model for the electromagnetically driven component of the flow field of the melts in ESR system has been developed and applied to the laboratory unit with a mould of 200 mm in diameter. For the practical remelting of a low carbon low alloy steel used an electrode of 76 mm in diameter with 3000 A(rms) current and CaF_2+30mass% Al_2O_3+20mass% CaO slag system, the flow field in the slag bath has been computed using the parameters selected reasonablly. The results indicate that two vontexes are generated in the bath, which circulatively move upwards along the inside wall of mould and through the slag/gas interface and the conical electrode tip, then downwards along the symmetry axis of the system. The maximum velocity of the moving slag reaches approximately at the middle part of the axis in the bath. Also, modelling and simulating under the assumed operative con ditions have been carried out in order to consider the influence of the remelting current and fill ratio, as well as the shape of electrode tip. (Correspondent: WEI Jihe, professor, Department of Materials Science and Engineeing, Shanghai University,Shanghai 200072 ) Key words:  electroslag remelting      flow field of slag bath      electromagnetically driven component      mathematical modelling      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1994/V30/I23/481 1MitchellA,SzekelyJ,ElliottJF．ElectroslagRefining．London:ISI,1973:32PeoverME．JInstMet,1972;100:973DilawariAH,SzekelyJ．MetallTrans,1977;88:2274DillawariAH,SzekelyJ．MetallTrans,1978;9B:775ChoudharyM,SzekelyJ．MetallTrans,1980;11B:4396ChoudharyM,SzekelyJ．IronmakingSteelmaking,1981;8(5):2257魏季和,任永莉．电渣重熔体系内磁场的数学模拟,第九届全国冶金过程物理化学学术年会论文集1994．11,广州8ChoudharyM,SzekelyJ,MedovarBI,EmelyanenkoYuG．MetallTrans,1982;13B:359钱壬章,俞昌铭,林文贵．传热分析与计算．北京:高等教育出版社,1984:1010魏季和,MitchellA．金属学报,1984;20:B28011魏季和,MitchellA．金属学报,1984;20:B26112陈家祥编著．常用炼钢图表数据手册．北京:冶金工业出版社,198213GeigerGH,PoirierDR著,俞景禄、魏季和译．冶金中的传热传质现象．北京:冶金工业出版社,1981:2414GosmanAD,PunWM,RunchalAK,SpaldingDB,WolfsheteinM．MassTransferinRecirculatingFlow．LondonandNewYork:AcademicPress,196915CampballJ．JMet,1970;20:2 [1] Qing LI,Zixing WANG,Shuyuan XIE. Research on the Development of Mathematical Model of the Whole Process of Electroslag Remelting and the Process Simulation[J]. 金属学报, 2017, 53(4): 494-504. [2] NI Zifei SUN Yangshan XUE Feng BAI Jing. STUDY ON FABRICATION, MICROSTRUCTURE AND PROPERTIES OF IN SITU TiC PARTICLE ON DISPERSION–STRENGTHENED 304 STAINLESS STEEL[J]. 金属学报, 2010, 46(8): 935-940. [3] WANG Fang LI Baokuan. ANALYSIS OF ELECTROMAGNETIC FIELD AND JOULE HEATING OF ELECTROSLAG REMELTING PROCESSES[J]. 金属学报, 2010, 46(7): 794-799. [4] CHU Shaojun; LIU Haihong; ZHANG Heyi (Metallurgical Engineering College;University of Science and Technology Beijing; Beijing 100083)Correspondent: CHU Shaojun; associate professor; Tel: (010)62332790; Fax: (010)62522845. GRAPHITE NODULAR PHENOMENA DURING THE ESR OF CAST IRON[J]. 金属学报, 1998, 34(9): 971-976. [5] WEI Jihe(Shanghai University; 200072); REN Yongli; (Xi'an Institute of Metallurgy and Construction Engineering; 710055)(Manuscript received 94-04-27). MATHEMATICAL SIMULATION OF MAGNETIC FIELD IN ESR SYSTEM[J]. 金属学报, 1995, 31(14): 51-60. [6] WEI Jihe (Shanghai Univereity.of Technology);LIU Zongyuan(Xi'van Institute of Metallurgy Construction Engineering). STUDY ON OXYGEN TRANSFER THROUGH MOLTEN SLAGS OF CaF_2+Al_2O_3 AND CaF_2+Al_2O_3+CaO SYSTEMS FOR ESR[J]. 金属学报, 1994, 30(20): 350-360. [7] QU Ying;YANG Jian;XU Baomei University of Science and Technology Beijing Department of Metallurgy;University of Science and Technology Beijing; Beijing 100083. MATHEMATICAL MODELLING OF FLOW PHENOMENA IN METAL BATH COVERED WITH MOLTEN SLAG[J]. 金属学报, 1990, 26(3): 85-91. [8] CHEN Chongxi;GAO Rongfu Beijing University of Iron and Steel TechnologyDeft.of Superalloy;Beijing University of Iron and Steel Technology; Beijing. STUDY OF A NEW TYPE SEMI-LINING ELECTRO-SLAG REMELTING[J]. 金属学报, 1988, 24(3): 221-228. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed