Abstract: The present invention relates to the field of strip cold rolling, and in particular to a thickness control method for strips in a tandem cold mill. Frame S1 and one or more additional frames are selected as virtual indirect measuring instruments for the strip performance. A load cell is provided on the frames that are selected as the indirect measuring instruments for the strip performance, and deformation resistance fluctuation of the supplied materials of the frame S is calculated. Finally, the feed-forward adjustment amount of each frame is calculated. The present invention measures the deformation resistance of each section of the strip of the supplied materials through the selected frame, reducing the fluctuation of the thickness of the finished products of the strip and ensuring stable rolling.

Abstract: The present invention relates to the field of strip cold rolling, and in particular to a thickness control method for strips in a tandem cold mill. A performance feed-forward thickness control method in a tandem cold mill comprises selecting one or more frames as virtual indirect measuring instruments for the strip performance, in which the frame S1 must be used as a virtual indirect measuring instrument for the strip performance; calculating the deformation resistance fluctuation of supplied materials, providing a load cell on the frames that are selected as the indirect measuring instruments for the strip performance, and obtaining the deformation resistance fluctuation of the supplied materials of the frame Si by calculation; finally, calculating the feed-forward adjustment amount of each frame.