| 摘要 |
<p>PROBLEM TO BE SOLVED: To properly set a tension set value to approximate a reference tension also after a tension fluctuation on the basis of a prediction of the tension fluctuation.SOLUTION: A control apparatus 1, which is a control apparatus for a tandem mill that brings the tail end part of a preceding material into weld junction with the tip of the following material and continuously rolls the preceding material and the following material as one continuous metal strip so that a plate thickness of forward and rearward of a weld junction may be rolled to a finish thickness different from the plate thickness of a stationary region, comprises a tension fluctuation prediction part 5 that predicts a fluctuation amount of a back tension of each roll stand when a plate thickness change point of the metal strip has reached each roll stand, and a tension setting part 6 that adjusts a set value of back tension of each roll stand on the basis of the fluctuation amount of the back tension of each roll stand predicted by the tension fluctuation prediction part 5.</p> |
