METHOD OF PRESSING WIDTH OF HOT SLAB USING EDGING DIE AND DIE USED FOR THE SAME METHOD

PROBLEM TO BE SOLVED: To provide an edging die for hot slabs and a width pressing method by which heavy edging is stably made possible without increasing edging load. SOLUTION: In this width pressing method using the edging die for hot slabs, angles α1, α2which are formed by the first inclined part and the second inclined part of the die to the advancing direction of the slab and the length L of the intermediate parallel part are set so that the contact length L0of the die with the hot slab at the bottom dead center does not exceed the preset contact length L0*on the basis of formula (5) and the rolling reduction w1, w2by the first inclined part and the second inclined part and the feeding pitch P of the slab between the width pressing passes are set. COPYRIGHT: (C)2007,JPO&INPIT