| 摘要 |
<p>PURPOSE:To roll the crown of the width-end part of a rolling material into an optimum shape by changing the length of a part at which the width-end part of rolling material comes into contact with the taper part of a work roll in accordance with the shape of the width end of material in a rolling mill wherein the work roll having a taper side-end is shifted. CONSTITUTION:The shape of the width-end part of a rolling material is detected by shape detectors 11, 11', and its signal is processed by a signal processing unit 12 to recognize the shape shown by the figure for instance. The recognition signal is transmitted to an arithmetic unit 13 to operate the shifting amounts of work rolls 1, 2, and the shifting amounts are outputted, as command signals to roll shifting devices 14, 15 to move the rolls 1, 2 by the prescribed quantities to the rightward or leftward directions as shown by the figure. In this way, a roll gap G at the width end of rolling material 10 is reduced to perform rolling by reducing the length (l) of a part at which the material 10 comes into contact with the taper parts of rolls 1, 2. Accordingly, the exellent cross-sectional profile of material 10 is obtained.</p> |
