CONTINUOUS CASTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a continuous casting method, with which an immersion nozzle is difficult to clog during casting and pin hole state defect and powder state defect are not developed on the surface of a cast slab and the cast slab excellent in cleanliness is obtd. SOLUTION: Molten steel flowing speed near a meniscus of the molten steel in a mold is controlled so that the difference between the max. value of the flowing 9d toward short sides of the mold from the neighborhood of the immersion nozzle and the max. value of the flowing 9c toward the immersion nozzle from the short sides of the mold developed with inert gas blown at the interval from a molten steel supplying hole of a tundish into the mold to a spouting hole in the immersion nozzle becomes <=20 cm/sec.