METHOD FOR STRAIGHTENING CAMBER OF SLAB AND STRAIGHTENING DIE

摘要

PROBLEM TO BE SOLVED: To provide a straightening method and a straightening die for camber of a slab, with which the camber developed with the temperature difference in the width direction of the slab when the width rolling reduction is executed with a width rolling reduction press, can easily and effectively be straightened and the productivity of the rolled material can be improved. SOLUTION: This width rolling reduction press 20 is provided with a heating furnace 3 for heating the slab 2 to a prescribed temperature and attached with dies 21 and 21 having respective inclined part a and parallel part b to the slab carried out to the rolling line P from the heating furnace and oppositely disposed so as to be able to execute the width rolling reduction by advancing/ retreating in the slab width directions H and L. The camber of the width direction of the slab generated by the temperature difference in the width direction of the slab carried out from the heating furnace, when the width rolling reduction is executed, can be straightened between the dies by changing the rolling reduction phase or by having the plastic fluidity difference or by combining these.