Mathematical Modeling of Electroslag Remelting Process

doi:10.12068/j.issn.1005-3026.2014.04.019

Abstract

Abstract: The electrodeslag bathingot system was studied， and a 3D quasisteady state mathematical model was developed for simulating electroslag remelting(ESR) process. The commercial software ANSYS was applied to calculate the electromagnetic， flow and temperature fields in ESR system. The calculation results showed that the current is confined to the surface of electrode/ingot and the corner of electrode in slag bath. The flow field and temperature field are attributed to the effects of electromagnetic force and joule heating resulted from current density distribution and cooling condition. The metal pool depth and maximum mushy zone width increase with the melting rate.Under the conditions for this investigation， the minimum local solidification time (LST) corresponds to 700~800kg/h melting rate.

Key words: electroslag remelting, electromagnetic field, flow field, temperature field, local solidification time

CLC Number:

TP391

LIU Fubin， CHEN Xu， JIANG Zhouhua， LI Xing. Mathematical Modeling of Electroslag Remelting Process[J]. Journal of Northeastern University Natural Science, 2014, 35(4): 539-542.

References

[1] Mitchell A，Szekely J，Elliot J F.Electroslag refining［M］.London:Iron and Steel Institute，1973.
[2] 魏季和，任永莉.电渣重熔体系内熔渣流场的数学模拟［J］.金属学报，1994，30(11):481/490.(Wei Jihe，Ren Yongli.Mathematical modeling of slag flow field in ESR system［J］.Acta Metallurgica Sinca，1994，30(11):481/490.)
[3] 刘福斌，姜周华，臧喜民，等.电渣重熔过程渣池流场的数学模拟［J］.东北大学学报:自然科学版，2009，30(7):1012/1017.(Liu Fubin，Jiang Zhouhua，Zang Ximin，et al.Mathematical modeling of slag bath flow field during electroslag remelting process［J］.Journal of Northeastern University:Natural Science，2009，30(7):1012/1017.)
[4] Choudly M，Szekely J.Modeling of fluid flow and heat transfer in industrialscale ESR system ［J］.Ironmaking and Steelmaking，1981，4(5):225/232.
[5] Dong Y W，Zheng L C，Jiang Z H.Mathematical modeling of producing hollow ingot by electroslag casting with liquid metal［J］.Ironmaking and Steelmaking，2013，40(2):153/158.
[6] Krane M，Fahrmann J，Yanke E，et al.A comparison of predictions of transport phenomena in electroslag remelting to industrial data［C］//Proceedings of the 2011 International Symposium on Liquid Metal Processing ＆ Casting.Nancy，2011:65/72.
[7] Kharicha A，Schütenher W，Ludwig A，et al.Multiphase modeling of the slag region in ESR process［C］//Proceedings of the 2007 International Symposium on Liquid Metal Processing and Casting.Nancy，2007:107/112.
[8] 董艳伍.电渣重熔过程凝固数学模拟及新渣系研究［D］.沈阳:东北大学，2007.(Dong Yanwu.Mathematical modeling of solidification during electroslag remelting process and development of new slag［D］.Shenyang:Northeastern University，2007.)
[9] Dilawari A H，Szekely J.A mathematical model of slag and metal flow in the ESR process ［J］.Metallurgical Transactions B，1977，8(1):227/236.

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