| 摘要 |
<p>PURPOSE:To manufacture a metal strip or foil having good surface quality and sheet thickness accuracy by lapping upper and lower metal strips on each other by adjusting a vertical position of deflector rolls guiding the respective strips to eliminate tension differences and performing lamination rolling. CONSTITUTION:Two metal strips A, B having nearly equal sheet widths, sheet thickness, and deformation resistances are lapped on each other to form a laminated strip. A coil of the coiled laminated strip is delivered from one of coiling/recoiling reels 8 to be divided into separated two strips A, B. The respective strips A, B are guided by a couple of upper and lower deflector rolls 11, 17 and a vertical positions of the rolls 11, 17 is adjusted to eliminated tension differences between the strips A, B. Then, the strips A, B are again lapped, are rolled by a reversible rolling mill 5, and are wound on the coiling/recoiling reel 8 on the other side. The min. rolling passes are two. Hence, a thin metal strip or foil having the good surface quality and sheet thickness accuracy, even a hard material, is obtained.</p> |
