Hot tandem rolling mill

Details Hot tandem rolling mill Hot tandem rolling mill

1998-05-26

1999-09-14

Butler, Rodney

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

72 91, 72 117, B21B 3118, B21B 3716

Patent

active

059504781

ABSTRACT:
There are provided an even number of paired roll-shift type rolling mills 12a, 12b and a controller 16 for controlling the rolling mills 12a, 12b. Each of upper and lower work rolls 13 of each of the roll-shift type rolling mills has a predetermined crown curve and has a roll shifting mechanism 14 for axially shifting the upper and lower work rolls relative to each other. The controller 16 determines a shift amount of each rolling mill in order to obtain a predetermined cross section shape of a steel plate, shifts the work rolls of the rolling mill on the upstream side paired every rolling coil to thereby disperse wear on the roll surface, and moves the work rolls of the rolling mill on the downstream side of the pair in a predetermined direction by the same distance, thereby canceling the change in the cross section shape of the plate caused by the shifting operation for the wear dispersion.

REFERENCES:
patent: 4864836 (1989-09-01), Ochiai
patent: 5174144 (1992-12-01), Kajiwara et al.
patent: 5640866 (1997-06-01), Satoh et al.
patent: 5655398 (1997-08-01), Ginzburg

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