CONTINUOUS CASTING WITH IN-LINE STREAM DEGASSING

In a continuous casting process, a tundish feeds a molten metal stream through a "vacuum" chamber in contact with the mold. Discrete gas bubbles are injected into the molten metal, prior to its exit through a nozzle orifice in the tundish, so that the bubbles are entrained with the metal e...

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Bibliographische Detailangaben
Hauptverfasser:	OLSSON R,US, TURKDOGAN E,US
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	In a continuous casting process, a tundish feeds a molten metal stream through a "vacuum" chamber in contact with the mold. Discrete gas bubbles are injected into the molten metal, prior to its exit through a nozzle orifice in the tundish, so that the bubbles are entrained with the metal entering the "vacuum" chamber. The expansion of the gas bubbles in the chamber breaks the metal stream into a spray of fine droplets with the concurrent removal of dissolved gases from the metal. The degassed metal is then fed into the top of the mold and is continuously cast.