METHOD FOR AUTOMATIC CONTROL OF THE ROLLING PROCESS IN THE ROUGHING GROUP OF STANDS OF A CONTINUOUS ROLLING MILL Russian patent published in 2023 - IPC B21B37/52 B21B37/46 B21B1/24 

FIELD: rolling process automatic control.

SUBSTANCE: invention relates to automatic control of the rolling process in a roughing group of stands of a continuous rolling mill, consisting of successively arranged previous horizontal stand, vertical stand and subsequent horizontal stand. The circumferential speed of the rolls of the next horizontal stand is set. During joint rolling of the strip by rolls of the previous horizontal stand, vertical stand and subsequent horizontal stand, the static currents of the electric drives of the previous horizontal stand and vertical stand are measured, the transition is made from the regulation of the circumferential speed of the rolls of the previous horizontal stand to the regulation of the static current of the electric drive of these rolls, the static current of the electric drive of the previous horizontal stand is stabilized by applying a corrective signal to it. The transition from the regulation of the circumferential speed of the vertical stand rolls to the regulation of the static current of the electric drive of these rolls is carried out, the static current of the electric drive of the vertical stand is stabilized by applying a corrective signal to it. In the mode of free rolling of the strip in the rolls of the previous horizontal stand, until the strip is captured by the rolls of the vertical stand, the circumferential speed of the rolls of the vertical stand is set.

EFFECT: coordination of the speeds of the rolls of the horizontal and vertical stands is ensured.

1 cl, 2 dwg, 1 tbl