METHOD OF CONTROL STRIP ROLLING IN CONTINUOUS GROUP OF WIDE-BAND MILL STANDS

摘要

FIELD: metallurgy.;SUBSTANCE: invention can be used to control the rolling speed in the manufacture of strips in a continuous group of wide-band mill stands. Continuously measure the speed of the rolls, the rolling force and the roll gap in the rolling cages. Adjust the thickness of the strip by changing the roll gap. Adjust speed of rotation of the rolls in the i-th stand depending on the variation of the gap and the force in the mentioned stand by the value: where Δn_i – value of the correction of the speed of rotation of the rolls of the i-th stand; n_i – speed of rotation of working rolls of the i-th stand; h_i – strip thickness after the i-th stand; ΔS_i – change in the inter-roll gap of the rolls of the i-th stand; ΔP_i – change in the rolling force of the i-th stand; M_rol – stiffness factor of the i-th stand.;EFFECT: invention provides a reduction in the oscillations of inter-cell tension, looping and stripping of the strip width in the intervals between the stands of the finishing group.;1 cl, 3 dwg