Automatic plate thickness control device

Details Automatic plate thickness control device Automatic plate thickness control device

1983-02-15

1985-04-23

Husar, Francis S.

Metal deforming

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

Including plural sensors or sensor responsive to comparison...

72 8, B21B 3712

Patent

active

045121699

ABSTRACT:
A thickness control device and method for maintaining the thickness of the rolled material which is passed between the rollers of a rolling mill, in which the rollers above and below the rolling material are rotated at different speeds V.sub.H and V.sub.L. A variation in rolling material thickness is detected and expressed in terms of a change in rolling load WF. ##EQU1## is also detected. The change in rolling load .DELTA.F and the differential peripheral speed rate X are used to derive the change in differential speed rate .DELTA.X which would cancel out the variation in rolling material thickness. This correcting differential peripheral speed rate .DELTA.X is then utilized to change the velocities V.sub.H and V.sub.L of the upper and lower rollers, respectively, such that the thickness variation is eliminated without changing the speed of the rolled material.

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