TY - JOUR
T1 - Dual in-mold electromagnetic stirring in continuous casting
AU - Hirayama, Ryu
AU - Fujisaki, Keisuke
AU - Yamada, Takahiro
PY - 2004/7
Y1 - 2004/7
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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U2 - 10.1109/TMAG.2004.832131
DO - 10.1109/TMAG.2004.832131
M3 - Article
AN - SCOPUS:4444380395
VL - 40
SP - 2095
EP - 2097
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 4 II
ER -