METHOD FOR REFINING MOLTEN STAINLESS STEEL

PROBLEM TO BE SOLVED: To provide a stainless steel refining method capable of stably achieving the continuous casting, and remarkably enhancing the cleanliness than heretofore. SOLUTION: When the molten steel is successively decarburized and deoxidized in a vacuum refining device to melt the stainle...

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Bibliographische Detailangaben
Hauptverfasser:	NOMURA HIROSHI, HIROTA AKIHITO, NISHIKAWA HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a stainless steel refining method capable of stably achieving the continuous casting, and remarkably enhancing the cleanliness than heretofore. SOLUTION: When the molten steel is successively decarburized and deoxidized in a vacuum refining device to melt the stainless steel, the decarburizing of the molten steel is completed, and when the deoxidizing is completed, aluminum is charged in the molten steel so that the concentration of CaO, SiO2 and Total. Cr (each expressed in terms of wt.%) in the slag is satisfied with the following inequalities: (Total. Cr)