Flexible minimum energy utilization electric arc furnace system and processes for making steel products

In an electric arc furnace system for making steel, a method and structure (1) for eliminating teeming hang-ups and ensuring temperature homogeneity in a ladle which teems into an ingot mold by gas purging at all possible steps under both atmospheric and vacuum conditions, and (2) for preventing non...

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Bibliographische Detailangaben
Hauptverfasser:	Brada Guy A, Guliana John A, Underys Algirdas A, Ericksen Christian H, Liimatainen Bruce C
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Beschreibung
Zusammenfassung:	In an electric arc furnace system for making steel, a method and structure (1) for eliminating teeming hang-ups and ensuring temperature homogeneity in a ladle which teems into an ingot mold by gas purging at all possible steps under both atmospheric and vacuum conditions, and (2) for preventing non-metallic inclusions from appearing in the final product by deflecting the granular material in the teeming ladle well block away from the ingot mold by a heat resistant but combustible deflector just prior to entry of the teeming stream into the ingot mold.