| 摘要 |
The invention relates to the design of multiple piece rolls, in particular backup rolls, for the use in metal rolling. The roll comprises a main part (1) with a centre bore (4) for the removal of centre defects or flaws arising from the manufacturing process, e.g. from casting or forging and at least an end part (2, 3), whereas the end part (2, 3) has no centre bore or a centre bore (5) with a diameter smaller than the bore diameter of the main part (1). |
