METHOD FOR REMOVING INCLUSION IN MOLTEN STEEL IN TUNDISH FOR CONTINUOUS CASTING

摘要

PROBLEM TO BE SOLVED: To execute float-up and separation of fine inclusions by controlling the flowing state of molten steel in a tundish for continuous casting. ;SOLUTION: The inclusion removing method is the method for floating up and separating the inclusion in the molten steel in the tundish at the time of continuously casting, and at the time of using V (m³/min) for the molten steel pouring quantity into the tundish at the stationary time, S (m²) for the cross sectional area at the right angle to the shifting direction of the narrowest part of the molten steel stream in the tundish, H (m) for the molten steel depth of the molten steel stream and L (m) for the horizontal distance between both nozzle centers of the pouring and the flowing-out, the molten steel stream in the tundish is controlled so as to satisfy the following conditions. V/D=0.28-0.50 m/min, L/H=5-10.;COPYRIGHT: (C)1998,JPO