| 摘要 |
<p>An apparatus (100) for controlling a hot rolling tandem mill for continuously controlling rolling of a steel strip (161) by a work roll (153) provided in each of a plurality of rolling stands (152) has a configuration as follows. By paying attention to the fact that a risk that a rolling speed reaches an upper limit is different depending on characteristics of the steel strip (161), a speed margin is made capable of being set for each steel strip (161), and a maximum value of the rolling speed that can be set by a setup calculation is made appropriate. Here, control is executed so that, when the rolling speed of the specific rolling stand (152) reaches the upper limit value of the roll speed during rolling, the rolling speed of each of the rolling stands (152) is lowered, and disturbance of a speed balance between the rolling stands (152) is minimized more preferably.</p> |
