FLUX FOR MANUFACTURING OF ULTRA LOW CARBON STEEL

• Main Authors: JO, JONG OH, LEE, CHANG OH, TAE, SOON JAE, CHANG, CHUL HO
• Format: Patent
• Language: English; Korean
• Published: 09.01.2014
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; 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

The present invention relates to a flux for manufacturing of ultra low-carbon steels fed in a ladle so as to secure an oxygen concentration in a molten steel in a RH process upon manufacturing ultra low-carbon steels, and provides a flux for manufacturing of ultra low-carbon steels as a subsidiary raw material fed in a molten steel tapped into a ladle after completion of converter refining upon manufacturing of ultra low-carbon steels, comprising in weight %; CaO: 45~47%, Al2O3: 10~20%, SiO2: 3~5%, MgO: 6~8%, MnO: 2~4% and other unavoidable impurities. [Reference numerals] (AA) Endpoint; (BB) BS arrival; (CC) BS departure; (DD) RH arrival