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JFE Engineering Corp
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NKK Corp
Nippon Kokan Ltd
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Publication date
Application filed by NKK Corp, Nippon Kokan LtdfiledCriticalNKK Corp
Priority to JP9537578ApriorityCriticalpatent/JPS5524915A/en
Publication of JPS5524915ApublicationCriticalpatent/JPS5524915A/en
C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
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Chemical & Material Sciences
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Analytical Chemistry
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Engineering & Computer Science
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Materials Engineering
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Metallurgy
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Organic Chemistry
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Treatment Of Steel In Its Molten State
(AREA)
Abstract
PURPOSE:To remove nonmetal impurities present in molten steel by making them adhere to the surface of refractory by dipping refractory in molten steel while cooling its inside. CONSTITUTION:The refractory 10 is dipped in the molten steel 1 while cooling its inside 11 with air or water, whereupon the alumina-containing steel 13 adheres partially on the surface of the refractory 10 at first and then the white alumina particles 14 adhere on its outside. The Fig. shows an example of the dipping of U- shaped refractory in ladle. It may be used in turn-dish.
JP9537578A1978-08-071978-08-07Removal of nonmetal impurity in molten steel
PendingJPS5524915A
(en)
METHOD FOR REDUCING THE IRON CONTENT OF RAW MATERIALS CONTAINING IRON, SILICON AND ALUMINUM AND FOR THE PRODUCTION OF IRON OXIDE AND, ALSO, ALUMINUM OXIDE CONCENTRATES