| 摘要 |
<p>PURPOSE:To prevent causing local projections on a steel plate, etc., at rolling a steel plate, etc., by shifting upper and lower work rolls in the reverse direction of the rolls by obtaining a change of axial clearance between rolls from the profile of work roll under rearranging the work rolls, then by controlling a shifting value properly. CONSTITUTION:On any rolling stand of a tandem rolling mill, actual rolling results of a rolling material 1 are collected by a width meter 3, thermometer 4, thickness meter 5, load cell 6, etc., further combining the rolling results with a rolling information from an information inputting device for the roll radii 8 to input it to a roll profile arithmetic unit 7 to obtain the roll profile accurately, then this shifting value is stored in a buffer for presetting the next material 10, used by a work roll shifting device 11 just before rolling the next material to prevent causing the local projections on the next rolling material.</p> |
