Sokatachizai, in particular a mold for the continuous casting of double t-shaped coarse profile

The present invention is Sokatachizai particularly relates beam blank cast pieces and the continuous casting mold of a double T-shaped coarse profiles such as those like it, in its mold channel (8), all of the inner wall of the mold (7A～7l ) is upper provided with a taper (9-12) extending in a straight line to the lower from the taper, which has been dimensioned in accordance with the shrinkage of the slab, the inner wall (7A～7l) It is formed by machining. In this manner, even if for a large slab size, the mold section can be optimally adapted to the contraction of the cast piece in the mold channel. .Field