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Application filed by Cockerill Ougree Rrovidence SfiledCriticalCockerill Ougree Rrovidence S
Publication of BE752632ApublicationCriticalpatent/BE752632A/en
C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
C21C5/28—Manufacture of steel in the converter
C21C5/30—Regulating or controlling the blowing
C21C5/32—Blowing from above
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Engineering & Computer Science
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Chemical & Material Sciences
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Manufacturing & Machinery
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Materials Engineering
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Metallurgy
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Organic Chemistry
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Carbon Steel Or Casting Steel Manufacturing
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Treatment Of Steel In Its Molten State
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Abstract
A solid floor converter, rotating around its longitudinal axis, is maintained in a fixed and vertical position while blowing technically pure oxygen or an oxidising gas highly rich in oxygen at the top one and/or in the bath. The blowing is continued until the bath's carbon content is 0.05%-0.15%. The converter rotates below 25 rev./min. for 1-4 min. This gives a low carbon steel whose sulphur and phosphorus content is very low. The iron content of the slag is high. Then, the steel is cast in ladles.
BE752632D1969-07-081970-06-26Pneumatically converting cast iron to low - carbon steel
BE752632A
(en)