PURPOSE: To decrease the camber in cross rolling and thickness reduction rolling by forming a slab to the shape resembling to the shape of the slit bone formed at the cut edge of the slab in a longitudinal cutting stage in a mold for continuous casting.
CONSTITUTION: The bulge E having the section of the shape resembling to the triangular shape F of a cut section and a slit bone D is beforehand formed to a non-cut edge 3a in a stage for molding a continuous casting slab 1 with the casting mold before the stage for cutting longitudinally the slab 1. The slab 3 formed with a cut section F and the bulge E is edged and shaped with vertical rolls 7, 7 with grooves 6, 6. The slab is thereafter subjected to cross rolling with ordinary plural vertical rolls and to thickness reduction rolling with plural horizontal rolls.
KAWATANI YOUJI
IBATA HARUHIRO
JPS57130749A | 1982-08-13 |