Method and apparatus for controlling rolling mill

Details Method and apparatus for controlling rolling mill Method and apparatus for controlling rolling mill

1991-10-31

1993-11-30

Smith, Jerry

Boots, shoes, and leggings

364148, 364563, 72 8, 72 10, 72 16, B21B 3712, G06F 1546

Patent

active

052671704

ABSTRACT:
According to this invention, a rolled sheet rolled by a reduction roll of a rolling mill is divided into a plurality of areas in a direction of its width, and sheet flatness or thickness values are measured in the plurality of areas. Bending forces, leveling value, shift amounts, and the like applied, by actuators respectively arranged at drive and work sides of the reduction roll, from the drive and work sides of the reduction roll are calculated in accordance with the sheet flatness or thickness measurement values and influence coefficients of the actuators. The actuators on the drive and work sides of the reduction roll are independently operated in accordance with these operation amounts.

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patent: 4633693 (1987-01-01), Tahara et al.
patent: 4805492 (1989-02-01), Tsuruda
patent: 4907434 (1990-03-01), Hoshino et al.
patent: 5047964 (1991-09-01), Lalli

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