| 摘要 |
<p>PURPOSE:To diminish swells on the overlapped surface between upper and lower Al foils and to perform a doubling rolling which hardly generates oil pits by controlling a rear tension of the rolling Al foils for doubling rolling of Al foils. CONSTITUTION:A lateral distribution of rear tensions of rolling Al foils M uncoiled from two uncoiler 1 and 2 is detected by a split roll 3 and is inputted into a CPU 11, which compares the previously set target pattern 12 with the distribution of tensions inputted from the roll 13, calculates electric current values based on the comparison result, and outputs the current value to the electric current control system of the uncoilers 1 and 2. An injected volume and an injection pattern of a roll coolant are calculated based on the current values and are outputted into a roll coolant atomizing means. Further, a bending force is calculated and is outputted into a roll bending control unit. Next, the maximum value of rear tensions is made to be equal to the maximum value of the target pattern uusing the current control system of the uncoilers 1 and 2 and the above atomizing means and control unit control so that a rear tension distribution equals to the target pattern.</p> |
