| 摘要 |
PURPOSE:To form a slab into a loop after reducing its thickness without lowering its temperature at the inlet of a finishing mill, by installing a mill between a joining machine and a looping device, and rolling a slab into a thin one immediately before feeding the slab to the looping device. CONSTITUTION:A slab, heated to a prescribed temperature by a heating furnace, is conveyed to a No.1 roughing mill 12 by a roll table 10, and is rolled into a prescribed thickness. Next, the slab is conveyed to a No.2 roughing mill 18 by a roll table 16, and is rolled into a prescribed thickness. The slab, conveyed thereafter by a roll table 20 to a crop shear 22, is rolled by a mill 48 after cutting off the crop of its front end, and is fed to a group of finishing mills 24 through a looping device 34. A loop 36 of slab is easily formed because it is formed after rolling the slab by the mill 48, and the radius of curvature of loop can be made smaller and the space of loop in the slab conveying direction can be reduced because the thickness of slab is reduced. |
