| 摘要 |
PURPOSE:To improve quality and to decrease driving power for rolling by rolling metallic slab with a horizontal rolling mill down to a target thickness, then subjecting the slab to cross rolling, rolling only the locally increased thickness part by horizontally rolling and again rolling the slab in the transverse direction by caliber rolls. CONSTITUTION:The metallic slab is rolled down to the target thickness size by the horizontal rolling mill and thereafter the locally increased thickness part generated by the cross rolling is rolled down to the original thickness size by the horizontal rolling mill in the constitution of the vertical rolls 2, 4 with calibers and horizontal rolls 3. After the target width of the metallic slab is obtd. by repeating such rolling, the slab is again rolled down to the target thickness by the horizontal rolling mill until the prescribed size is obtd. |
