CONVERTER BLOWING METHOD CAPABLE OF RESTRAINING METAL FROM STICKING ON FURNACE OPENING HOLE

摘要

PROBLEM TO BE SOLVED: To provide a blowing method hardly causing the sticking of metal to a furnace opening hole in a converter type refining furnace. ;SOLUTION: The sticking of the metal is restrained by executing the heat having ≤0.15wt.% Si in molten iron and remaining ≥10kg/t-steel slag in the previous heat and having ≤30kg/t-steel the slag in the furnace to ≥80% in the arbitrary continuous plural heats. Further, the pre-dephosphorized molten iron having the P concn. at less than the P concn. required in the product can used.;COPYRIGHT: (C)1998,JPO