Rolling mill control system

Details Rolling mill control system Rolling mill control system

1982-10-15

1984-12-04

Larson, Lowell A.

Metal deforming

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

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

72 20, 72245, B21D 3700

Patent

active

044856490

ABSTRACT:
A rolling mill having hydraulic cylinders in each housing to adjust the roll gap is provided with a control system whereby a workpiece is kept on a central path through the mill and is prevented from wandering from this path towards one of the mill housings. The system includes a pair of circuits and a connector between the circuits for averaging the load on each housing and controlling the roll gap in accordance with a certain mill stretch factor. The difference between the loads is also obtained and a signal, in accordance with a different stretch factor, is applied to the housing with the heaviest load and a signal of the same magnitude, but opposite polarity, is applied to the other housing.

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