METHOD FOR CASTING AND IMMEDIATE ROLLING, AND DEVICE FOR THE SUPPORT, GUIDANCE AND DEFORMATION OF A METAL STRAND, ESPECIALLY A STEEL STRAND

摘要

A method for casting and rolling preliminary sections, especially H-sections, and a device for the support, guidance and deformation of a metal strand, especially a steel cast strand ( 1 ), in a continuous casting installation for preliminary sections with soft reduction ( 9 ), wherein roll carriers ( 2 ) are arranged below the continuous casting mold opposite each other on each side of the cast strand ( 1 a, 1 b), the rolls of said carriers being in transport and/or deformation connection with said cast strand, and wherein to avoid segregation and porosity, the preliminary section is precast in the continuous casting mould with a bulge ( 6 a) on the flanges ( 7 ) on the surface ( 6 b) of the web of said preliminary section, and the bulges ( 6 a) of the flange ( 7 ) and the web of the preliminary section ( 6 ) are rolled flat in the soft reduction area ( 9 ) in such a way that the outer surfaces of the flange ( 7 a) and the web surfaces of the preliminary section ( 6 b) are largely plane.