METHOD FOR ROLLING THICK STEEL PLATE

摘要

PROBLEM TO BE SOLVED: To provide a method for rolling a thick steel plate by which the seizure and the crack of a work roll in a thick plate rolling machine can be suppressed. SOLUTION: In making the thick steel plate by hot-rolling a steel slab, this method is made to apply a roll of which the superficial layer of a rolling portion comprises a cemented carbide to the work roll in the thick plate rolling machine carrying out the above hot-rolling, the above roll has a shaft member (steel- made shaft center 1) with its outside sleeve member, and it is preferable that the sleeve member is formed by joining/integrating a plurality of cemented carbide formed members in the roll axis direction (cemented carbide joining sleeve 2).