METHOD FOR ELECTROMAGNETIC STIRRING OF CONTINUOUS CASTING

METHOD FOR ELECTROMAGNETIC STIRRING OF CONTINUOUS CASTING

Unsolidified metal in a continuously cast strand is electromagnetically stired by a magnetic field formed by passing alternating curent through at least one set of coils. The current in one coil differs in frequency from that in the other, to form a varying composite magnetic field. This produces a...

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Bibliographische Detailangaben
Hauptverfasser: SUZUKI YASUO, ONIJI DOSHIYASU, FUJIWARA GOICHI, DAKASHI HIROSHI, AYADA KENJO, SHIOZAWA DAKEO
Format: Patent
Sprache:eng
Schlagworte:
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Beschreibung
Zusammenfassung:Unsolidified metal in a continuously cast strand is electromagnetically stired by a magnetic field formed by passing alternating curent through at least one set of coils. The current in one coil differs in frequency from that in the other, to form a varying composite magnetic field. This produces a stirring movement of varying direction and intensity in the molten metal. For frequency ranges of 1 to 20 Hz., and 50 to 60Hz., the differences are 0.04 to 0.20 Hz, and 0.06 to 0.2Hz respectively. The max. flux density of the field is 100 to 2300 gauss at the matal surface.