| 摘要 |
PURPOSE:To improve rolling yield and productivity by lengthening the elongation length of a product without extending an installation, by performing a continuous rolling between an intermediate mill and a finishing mill only at the final pass in a reversing rolling of the intermediate mill. CONSTITUTION:A reversing-pass rolling is performed at a rough rolling mill A3. Next, the reversing-pass rolling is performed at an intermediate mill B3, and a continuous rolling is performed between the mill B3 and a finishing mill C3 only at the final pass by using a proper control system. In this way, a long-sized rolling material is obtained without increasing the distance l3 between the intermediate and finishing mills or extending the rolling installation, and the rolling yield and the productivity are improved. |
