Tension control in a metal rolling mill

Details Tension control in a metal rolling mill Tension control in a metal rolling mill

1984-06-25

1985-10-22

Husar, Francis S.

Metal deforming

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

Including plural sensors or sensor responsive to comparison...

72 17, 72 19, 72205, B21B 3702, B21B 3706, B21B 3902

Patent

active

045480630

ABSTRACT:
A metal rolling mill for reducing the thickness of a metal workpiece passed between a pair of opposed work rolls is controlled to maintain substantially constant tension in the workpiece on the entry side of the work rolls to thereby improve the uniformity of the workpiece gate at the mill output. Working in conjunction with a standard control for delivering the workpiece is a scheme for compensating for thickness variations in the workpiece at the entry side of the work rolls which variations would result in tension changes which would adversely affect output gage consistency.

REFERENCES:
patent: 3162069 (1964-12-01), McLay et al.
patent: 3169424 (1965-02-01), Branscom et al.
patent: 3312091 (1967-04-01), Kobayashi
patent: 3869892 (1975-03-01), Higham et al.
"Selection of Electrical Equipment for Temper and Skin Pass Mills" by J. E. Peebles et al., Iron and Steel Engineering, Sep. 1958, pp. 115-128.

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