Method of changing rolling schedule during rolling in tandem rol

Details Method of changing rolling schedule during rolling in tandem rol Method of changing rolling schedule during rolling in tandem rol

1979-11-01

1982-06-15

Ruggiero, Joseph F.

Boots, shoes, and leggings

72 12, 72240, 364472, G06F 1546, B21B 3700

Patent

active

043354351

ABSTRACT:
In a tandem rolling mill a control computer integrates the entry speed of a work strip having a gauge transition to determine the arrival of the transition at a first roll stand. At that time a screw-down on that stand is updated through a scheduling computer while roll speeds on all the stands remain unchanged. When the gauge transition arrives at each of the succeeding stands as determined by the control computer integrating a roll speed on the preceding stand, the scheduling computer updates a screw-down on the arrival stand and changes roll speeds so as to minimize the sum of the squares of changes in roll speed with the constant mass flow relationship fulfilled.

REFERENCES:
patent: 3722244 (1973-03-01), Fujii et al.
patent: 3852983 (1974-12-01), Cook
patent: 4087859 (1978-05-01), Anbe

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