REFINING METHOD OF STEEL

The present invention relates to a method for refining steel. The method comprises: a process of transferring molten steel processed in a converter, to a vacuum degassing facility; a process of returning and decarbonizing the molten steel in the vacuum degassing facility and blowing hydrocarbon gas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NOH, WOO JIN, KIM, KWANG CHUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a method for refining steel. The method comprises: a process of transferring molten steel processed in a converter, to a vacuum degassing facility; a process of returning and decarbonizing the molten steel in the vacuum degassing facility and blowing hydrocarbon gas into the molten steel; and a step of deoxidizing the molten steel by putting a deoxidizing agent in the vacuum degassing facility. [Reference numerals] (AA) Pressure gauge; (BB) Flow control device; (CC) Lance; (DD) Collect sample; (EE,HH) Thermocouple; (FF) Induction coil; (GG) Quartz tube