Control apparatus for a continuous hot rolling mill

Details Control apparatus for a continuous hot rolling mill Control apparatus for a continuous hot rolling mill

1993-06-18

1996-01-02

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 16, 72205, 72234, 364472, B21B 3712

Patent

active

054798035

ABSTRACT:
A setting means sets variables for expressing the process model, a target thickness value of the rolled material, a target interstand tension value of the rolled material, variables for responses of the thickness and the interstand tension and variables for adjusting the responses of a control system for controlling the thickness and the interstand tension. A control gain arithmetic means obtains control gains as numeric values by substituting the set variables into predetermined control gain operation expressions. A control arithmetic means calculates the speed command values and the roll gap command values for causing the thickness to follow up the target thickness and the interstand tension to follow up the target interstand tension while reducing an interaction between the thickness and the interstand tension by use of the calculated control gains.

REFERENCES:
patent: 3416339 (1968-12-01), List
patent: 4292825 (1981-10-01), Morooka et al.
patent: 4507946 (1985-04-01), Koyama et al.

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