摘要:
A method for starting continuous slab casting capable of facilitating withdrawal of a dummy bar to start smooth continuous slab casting is provided at the start of casting of continuous slab casting, where lateral side plates (2) of the mold (10) are pinched by longitudinal side plates (1) of the mold and are adjustable in the slab width direction; where the dummy bar (4) is set at a desired level at the center in a width-variable, continuous casting mold; and clearances each between lateral side plates (2) and the dummy bar (4) are adjusted to 1 - 3 mm, while maintaining the lateral side plates (2) vertically, then sealing materials (5) are filled into the clearances; then molten steel is poured into the mold; and then the top ends of the lateral side plates (2) are made more apart outwardly, thereby giving a downwardly tapered profile to the lateral side plates (2), when no more poured molten steel is passed into the clearance between the formed solidified shell (6a) and the plates (1) and (2), while withdrawing the dummy bar (4) downwardly; whereby the continuous slab casting is conducted.