METHOD FOR PREVENTING ATMOSPHERIC AIR-LEAKAGE IN VACUUM-DECARBURIZE-REFINING

PROBLEM TO BE SOLVED: To provide a method for preventing the atmospheric air-leakage in a vacuum-decarburize-refining with which a low nitrogen steel, further extremely low nitrogen steel is easily produced by improving the sucking efficiency of the air in a refractory at more than the conventional...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KONDO MASAAKI, ONISHI KENJI, KANEYASU TAKAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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 HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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