| 摘要 |
<p>PURPOSE:To eliminate the interstand unmatching, by computing the loop variation and the speed variation of the strip between the stands, and by controlling the reference value of the rolling speed. CONSTITUTION:The amount of the loop LP of the strip S between the stands F1, F2, is computed from the upward/downward turning angle theta of the looper arm L1 of the looper L installed between the stands F1, F2; the deviation of above loop LP from the set value LPO, that is the loop variation DELTALp is computed; at the same time, the varying speed of the loop at that moment, {2K(theta-c)dtheta/dt}, is computed from the effective upward/downward turning angle (theta-c) of the looper arm L1 and the angular velocity (dtheta/dt) of the upward/downward turning motion; through the period necessary for eliminating thus computed deviation (DELTALp) at the varying speed of the loop, {2K(theta-c)dtheta/dt}, the reference speed value of the mill motor of at least one of stands F1, F2, is controlled; hereby, the interstand loop is controlled to constant.</p> |
