METHOD FOR REMOVING INCLUSION IN MOLTEN STEEL AND TUNDISH FOR CONTINUOUS CASTING

PURPOSE:To improve the quality of the cast ingot by arranging plural pieces of refractory columns with recessed parts on the side front surface parallel to the molten steel flowing passage of the tundish, and flocculating the inclusion in the molten steel vortex generated on the surface of the refra...

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Bibliographische Detailangaben
Hauptverfasser:	KASAMA AKIO, MIYOSHINO YASUHITO, MISUMI HIDEYUKI
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:	PURPOSE:To improve the quality of the cast ingot by arranging plural pieces of refractory columns with recessed parts on the side front surface parallel to the molten steel flowing passage of the tundish, and flocculating the inclusion in the molten steel vortex generated on the surface of the refractory columns. CONSTITUTION:Plural pieces of refractory columns 1 with recessed parts on the side surface are arranged parallel in the molten steel passage toward the immersing nozzle 5 from the pouring nozzle 8 in the tundish 2. In such a way, vortex is generated on the surface of the refractory column 1 in the molten steel. The inclusion is flocculated in the vortex of the molten steel generated on the surface of the refractory column 1. Then, the inclusion is separated from the molten steel by sticking or floating on the surface of the refractory column 1. Therefore, the molten steel is cleaned and the productive capability of the continuous casting process can be improved.