Gauge control using estimate of roll eccentricity

Details Gauge control using estimate of roll eccentricity Gauge control using estimate of roll eccentricity

1979-03-12

1980-09-16

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

B21B 3708

Patent

active

042222540

ABSTRACT:
A method of controlling a rolling mill in which eccentricity of the roll assemblies of the mill and variations in the thickness and/or hardness of material entering the mill ordinarily adversely affect the gauge of the material leaving the mill. The method involves the steps of slowly eliminating the cyclic effects of roll eccentricity on the exit gauge of the material while simultaneously correcting for the adverse effects of incoming gauge variations. This is accomplished by continually estimating a change in exit gauge using the standard gaugemeter equation but correcting the equation with continuing estimates of backup roll eccentricity, until the cyclic effects of such on exit gauge are essentially reduced to zero.

REFERENCES:
patent: 3709009 (1973-01-01), Shiozaki et al.
patent: 3928994 (1975-12-01), Ichiryu et al.

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