Process and device for controlling the flatness of a cold-rolled

Details Process and device for controlling the flatness of a cold-rolled Process and device for controlling the flatness of a cold-rolled

1979-04-10

1981-09-15

Mehr, Milton S.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 17, 72 20, 73159, B21B 3704

Patent

active

042890055

ABSTRACT:
A process for controlling the flatness of a metal sheet subjected to a cold-rolling operation by the measurement of the tensions in different regions of the width of the sheet. There are at least three regions. The process comprises calculating the sum of the tensions measured in the respective regions, calculating from the result obtained the theoretical tension in each region corresponding to a tension uniformly distributed along the width of the sheet, comparing said theoretical tension with the tension effectively measured in the corresponding region and exerting, if required, the required correcting actions as a function of the results of said comparison.

REFERENCES:
patent: 3475935 (1969-11-01), Kajiwara
patent: 3496744 (1970-02-01), Mizuno et al.
patent: 3499306 (1970-03-01), Pearson
patent: 3802237 (1974-04-01), Albensi et al.
patent: 4074624 (1978-02-01), Brornstad
patent: 4188809 (1980-02-01), Ishimoto et al.

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