Method for adjusting a roll gap

Details Method for adjusting a roll gap Method for adjusting a roll gap

1996-01-11

1998-07-07

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

72247, 72 134, 72 144, 72 71, B21B 3107

Patent

active

057751544

ABSTRACT:
A method for adjusting the roll gap in strip rolling mills including a roll stand equipped with hydraulic adjusting devices on the drive side as well as on the operator side, wherein the positions of the rolls in a roll stand are adjustable by means of the hydraulic adjusting devices. Prior to the beginning of rolling, the stand is calibrated in a reproducible state. For any changes of the stand geometry and/or the force proportions in the stand, position changes of the adjusting devices corresponding to and resulting from these changes are determined. Changes in the stand geometry and/or the force proportions adjusted or occurring during the rolling operation are regulated by utilizing the difference between the determined corresponding adjusting positions on the drive side and the operator side and by controlling the adjustment toward zero.

REFERENCES:
patent: 3389588 (1968-06-01), Reinhardt et al.
patent: 3961509 (1976-06-01), Dohrmann
patent: 4054043 (1977-10-01), Eibe
patent: 4773246 (1988-09-01), Perret
patent: 5540072 (1996-07-01), Nishimura
patent: 5560237 (1996-10-01), Yasuda et al.

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