| 摘要 |
One subject of the invention is a method of rolling a strip (B) in a rolling mill for metal products, which mill has at least two stands in the nips of which the strip (B) is simultaneously gripped, whereby the lateral position of said strip (B) is adjusted, by simultaneously determining downstream of each of the stands of the rolling mill in the nips of which said strip (B) is gripped, a value representative of its lateral position along a line transverse to its run direction, and the algebraic differences (Δxp) between the lateral positions and a reference position (6) are calculated, the value (Sp) of the additional tilt to be imposed on each of said stands of the rolling mill, in the nips of which said strip (B) is gripped, is then calculated from these differences (Δxp) so as to bring said algebraic differences (Δxp) below a predetermined threshold, the calculation of said additional tilt values (Sp) being carried out by multiplying said differences (Δxp) by a gain matrix K determined by modeling the relationships linking said differences (Δxp) of the strip and said tilts (Sp) of the support rolls of the rolling mill, the respective additional tilt setting (Sp) is transmitted to each of said rolling mill stands, and these operations are repeated at predetermined time intervals until said strip (B) is no longer gripped in the nip of the last stand of said rolling mill. Other subjects of the invention are a device for implementing this method and a rolling mill equipped with at least one such device.
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