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Application filed by Centre Rech MetallurgiquefiledCriticalCentre Rech Metallurgique
Publication of BE751778ApublicationCriticalpatent/BE751778A/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
C21C5/34—Blowing through the bath
Abstract
The oxygen is pref. commercially pure. It is blown into the bath by blast pipes comprising two concentric tubes arranged at the bottom or in the wall of the converter. The oxidising gas jet is surrounded by a protective fluid injected between the two tubes. One or more additions of oxygen carriers are made at the beginning of the refining operation.
BE751778D1970-06-101970-06-10Refining cast iron pneumatically by blowing - in gas having a high oxygen content
BE751778A
(en)