| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-rolling method using work rolls made of cemented carbide by which a material to be rolled can be rolled in accordance with the sheet crown and the shape of the material to be rolled as keeping the sheet crown and the shape controllability even when rolling is progressed. SOLUTION: Composite rolls having the outer layer of a sleeve made of the cemented carbide are used for a pair of upper and lower work rolls formed by an initial curve which are supplemented each other up and down in positions in the axial direction of the external size in the roll barrel. COPYRIGHT: (C)2009,JPO&INPIT
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