Roll for rolling mill and roll-shift type rolling mill

Details Roll for rolling mill and roll-shift type rolling mill Roll for rolling mill and roll-shift type rolling mill

1994-10-20

1997-06-24

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

72247, 722525, 492 28, B21B 2702

Patent

active

056408668

ABSTRACT:
A rolling mill includes a roll barrel having a straight region disposed at the middle thereof, sub-crown control regions disposed at both ends thereof, and main-crown control regions disposed between the straight region and the sub-crown control regions. The roll barrel has an outer surface having a bus bar which is a straight line inclined to a longitudinal axis of the roll barrel in the straight region, steep convex and concave curved shapes in the main-crown control regions, and gentle convex and concave curved shapes in the sub-crown control regions. The roll barrel has both ends having a diameter approximately equal to each other. The roll provides a large degree of freedom in designing curves to be applied to an outer surface of a roll barrel with the result that a larger crown control can be performed, and has a small number of factors for a vibration of a plate. The roll shift type rolling mill in accordance with the invention decreases an irregularity in plate thickness distribution at ends of a plate even when a plate having a width larger than specific maximum plate width is to be rolled.

REFERENCES:
patent: 4400957 (1983-08-01), Carlstedt et al.
patent: 4440012 (1984-04-01), Feldmann et al.
patent: 4881396 (1989-11-01), Seldel et al.

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