CONTINUOUS CASTING METHOD

PROBLEM TO BE SOLVED: To drastically reduce the refractory cost of a tundish, to reduce the heat loss and number of operators and further, to obtain a high quality cast slab having no reoxidation and no large inclusion, in a continuous casting of steel. SOLUTION: In the continuous casting method for pouring the molten steel from a ladle 1 into a tundish 3 and casting this molten steel in the tundish into a mold 6, the cast of the preceding try is completed while leaving the molten steel A and steel slag in the tundish 3, and a cast slab SA of the preceding try is drawn out and once, the continuous continuous casting is cut. Then, without executing the treatment of the left steel and slag and preheating to the tundish 3, after executing the preparation of casting, such as the exchange of an immersion nozzle 5 and the insertion of a dummy bar, this tundish and the mold are used for the next try. In the tundish 3, the molten steel B of the next try is poured and the left steel and slag are diluted and the casting of the next try is started.