Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process

A comprehensive transient model is developed to study the effect of electrode rotation on the evolution of metal pool profiles and the solidification quality of ESR ingots. Magnetohydrodynamic flow, heat transfer, solidification, and electrode melting are considered simultaneously in the model. The...

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Autores principales:	Xuechi Huang, Yiru Duan, Zhongqiu Liu, Baokuan Li, Fang Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	electroslag remelting rotating electrode metal pool profile heat transfer magnetohydrodynamic flow Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/560fa1edea0d4ae18298852d9897f409
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spelling	oai:doaj.org-article:560fa1edea0d4ae18298852d9897f4092021-11-25T18:21:07ZRole of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process10.3390/met111116752075-4701https://doaj.org/article/560fa1edea0d4ae18298852d9897f4092021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1675https://doaj.org/toc/2075-4701A comprehensive transient model is developed to study the effect of electrode rotation on the evolution of metal pool profiles and the solidification quality of ESR ingots. Magnetohydrodynamic flow, heat transfer, solidification, and electrode melting are considered simultaneously in the model. The growth of the ESR ingot is predicted using the dynamic layering method. The numerical results show that the productivity reaches a maximum of 15.97% at the rotating speed of 40 rpm without increasing power. With the increasing rotating speed, the maximum temperature of the melt decreases, and the temperature distribution becomes more uniform. Compared with the static one, the pool profiles are flattened by −1.19%, −8.52%, and 12.44% at the rotating speeds of 20, 40, and 60 rpm, respectively. The metal pool profile was improved remarkably, but only at the higher speed (i.e., 60 rpm). The effect of rotating speed on the metal pool profile depends on the competition between the melting rate and slag temperature. Meanwhile, the local solidification time and the secondary dendrite arm spacing are slightly improved at lower rotating speeds but are significantly worse at higher rotating speeds.Xuechi HuangYiru DuanZhongqiu LiuBaokuan LiFang WangMDPI AGarticleelectroslag remeltingrotating electrodemetal pool profileheat transfermagnetohydrodynamic flowMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1675, p 1675 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	electroslag remelting rotating electrode metal pool profile heat transfer magnetohydrodynamic flow Mining engineering. Metallurgy TN1-997
spellingShingle	electroslag remelting rotating electrode metal pool profile heat transfer magnetohydrodynamic flow Mining engineering. Metallurgy TN1-997 Xuechi Huang Yiru Duan Zhongqiu Liu Baokuan Li Fang Wang Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
description	A comprehensive transient model is developed to study the effect of electrode rotation on the evolution of metal pool profiles and the solidification quality of ESR ingots. Magnetohydrodynamic flow, heat transfer, solidification, and electrode melting are considered simultaneously in the model. The growth of the ESR ingot is predicted using the dynamic layering method. The numerical results show that the productivity reaches a maximum of 15.97% at the rotating speed of 40 rpm without increasing power. With the increasing rotating speed, the maximum temperature of the melt decreases, and the temperature distribution becomes more uniform. Compared with the static one, the pool profiles are flattened by −1.19%, −8.52%, and 12.44% at the rotating speeds of 20, 40, and 60 rpm, respectively. The metal pool profile was improved remarkably, but only at the higher speed (i.e., 60 rpm). The effect of rotating speed on the metal pool profile depends on the competition between the melting rate and slag temperature. Meanwhile, the local solidification time and the secondary dendrite arm spacing are slightly improved at lower rotating speeds but are significantly worse at higher rotating speeds.
format	article
author	Xuechi Huang Yiru Duan Zhongqiu Liu Baokuan Li Fang Wang
author_facet	Xuechi Huang Yiru Duan Zhongqiu Liu Baokuan Li Fang Wang
author_sort	Xuechi Huang
title	Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
title_short	Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
title_full	Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
title_fullStr	Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
title_full_unstemmed	Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process
title_sort	role of electrode rotation on improvement of metal pool profile in electroslag remelting process
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/560fa1edea0d4ae18298852d9897f409
work_keys_str_mv	AT xuechihuang roleofelectroderotationonimprovementofmetalpoolprofileinelectroslagremeltingprocess AT yiruduan roleofelectroderotationonimprovementofmetalpoolprofileinelectroslagremeltingprocess AT zhongqiuliu roleofelectroderotationonimprovementofmetalpoolprofileinelectroslagremeltingprocess AT baokuanli roleofelectroderotationonimprovementofmetalpoolprofileinelectroslagremeltingprocess AT fangwang roleofelectroderotationonimprovementofmetalpoolprofileinelectroslagremeltingprocess
_version_	1718411257100369920

Role of Electrode Rotation on Improvement of Metal Pool Profile in Electroslag Remelting Process

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