Dual in-mold electromagnetic stirring in continuous casting

Ryu Hirayama; Keisuke Fujisaki; Takahiro Yamada

doi:10.1109/TMAG.2004.832131

Dual in-mold electromagnetic stirring in continuous casting

Ryu Hirayama, Keisuke Fujisaki, Takahiro Yamada

Environmental Studies

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We evaluate an effect of the dual in-mold electromagnetic stirring (M-EMS) which is arranged in series to control the molten steel velocity distribution using magnetohydrodynamic calculation. A stirring force ratio (SFR) defined as F_u/F_l where F_u is an electromagnetic force of upper M-EMS and F_l is the one of the lower M-EMS is introduced as an index of input. The value of SFR at the optimal condition that meniscus velocity is almost zero, but some velocity is realized at lower M-EMS position. Especially, the SFR condition to have no velocity at free surface is extremely rigorous. This means that it is very difficult to be stable at meniscus by the dual M-EMS system. The lower velocity hardly changes when the SFR changes.

Original language	English
Pages (from-to)	2095-2097
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	40
Issue number	4 II
DOIs	https://doi.org/10.1109/TMAG.2004.832131
Publication status	Published - 2004 Jul 1

Keywords

Continuous casting
Electromagnetic analysis
Electromagnetic stirring
Magneto hydrodynamics calculation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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abstract = "We evaluate an effect of the dual in-mold electromagnetic stirring (M-EMS) which is arranged in series to control the molten steel velocity distribution using magnetohydrodynamic calculation. A stirring force ratio (SFR) defined as Fu/Fl where Fu is an electromagnetic force of upper M-EMS and Fl is the one of the lower M-EMS is introduced as an index of input. The value of SFR at the optimal condition that meniscus velocity is almost zero, but some velocity is realized at lower M-EMS position. Especially, the SFR condition to have no velocity at free surface is extremely rigorous. This means that it is very difficult to be stable at meniscus by the dual M-EMS system. The lower velocity hardly changes when the SFR changes.",

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AU - Hirayama, Ryu

AU - Fujisaki, Keisuke

AU - Yamada, Takahiro

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N2 - We evaluate an effect of the dual in-mold electromagnetic stirring (M-EMS) which is arranged in series to control the molten steel velocity distribution using magnetohydrodynamic calculation. A stirring force ratio (SFR) defined as Fu/Fl where Fu is an electromagnetic force of upper M-EMS and Fl is the one of the lower M-EMS is introduced as an index of input. The value of SFR at the optimal condition that meniscus velocity is almost zero, but some velocity is realized at lower M-EMS position. Especially, the SFR condition to have no velocity at free surface is extremely rigorous. This means that it is very difficult to be stable at meniscus by the dual M-EMS system. The lower velocity hardly changes when the SFR changes.

AB - We evaluate an effect of the dual in-mold electromagnetic stirring (M-EMS) which is arranged in series to control the molten steel velocity distribution using magnetohydrodynamic calculation. A stirring force ratio (SFR) defined as Fu/Fl where Fu is an electromagnetic force of upper M-EMS and Fl is the one of the lower M-EMS is introduced as an index of input. The value of SFR at the optimal condition that meniscus velocity is almost zero, but some velocity is realized at lower M-EMS position. Especially, the SFR condition to have no velocity at free surface is extremely rigorous. This means that it is very difficult to be stable at meniscus by the dual M-EMS system. The lower velocity hardly changes when the SFR changes.

KW - Continuous casting

KW - Electromagnetic analysis

KW - Electromagnetic stirring

KW - Magneto hydrodynamics calculation

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Dual in-mold electromagnetic stirring in continuous casting

Abstract

Keywords

ASJC Scopus subject areas

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