| 摘要 |
A strip rolling mill and a method for controlling a strip rolling mill are provided which solve the wavy flatness defects extending over the width such as a strip running failure due to warp of the strip to be rolled, an undulation, a full wave, or a small wave. A strip rolling mill is characterized by comprising a pair of upper and lower work rolls, a pair of motors for independently driving the respective paired rolls, and control means for controlling one of the motors by using the roll rotational speed as a control target value and controlling the other by using the drive torque as a controlled variable while aiming at control such that the rolling torque applied to the strip to be rolled by the work roll driven by the other motor is approximately constant.
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