| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently produce a large amount of rolled material stably to the thermal crown by reducing the number of rolling stands and producing the rolled material having the desired plate thickness and plate crown in the case of developing the rolling stands which can not be a desired plate crown in the operatable range of a shape control means according to the increase of the thermal crown. SOLUTION: In a first endless set for rolling batch rolling material (a) and rolling materials (b, c, d), each rolling material can be rolled in six stands, because the lower limit value is not exceeded in the operatable range of crossing angles in all rolling stands. However, in a second endless set for rolling the rolling materials (e-j), there is a rolling stand exceeding the lower limit value in the operatable range of the crossing angle from the rolling material (h). When the number of the rolling stands change from six to five, the setting value of the crossing angle in the rolling materials (e-j) increases, the setting value of the roll crossing angle in respective rolling materials (h-j) exceeds the lower limit value, too and in the second endless set, too, the rolling can be executed.</p> |
