Mill for producing strip and use thereof

Details Mill for producing strip and use thereof Mill for producing strip and use thereof

1991-07-12

1993-05-11

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

72247, B21B 1302, B21B 3118

Patent

active

052090957

ABSTRACT:
A mill for producing a continuous strip comprising a pair of work rollers having a constant diameter over the work length, at least one local back-up roller having two rotatable contact surface sections, each provided to have a back-up effect on a corresponding work roller in a direct manner or an indirect manner. Each contact surface section is axially movable relative to the corresponding work roller. An overall back-up roller having a constant diameter over the work length may be provided between the local back-up roller and the work roller. Means for bending each work roller and/or each intermediate roller at the opposite neck portions thereof with a corresponding pair of the contact surface sections acting as fulcrums thereagainst. The mill is operated, while an axial position of each contact surface section is adjusted, and a hydraulic fluid supplied into each roller bending means forming a hydraulic cylinder is controlled in response to a profile of the strip.

REFERENCES:
patent: 1953190 (1934-04-01), Paterson
patent: 2040400 (1936-05-01), Paterson
patent: 2271459 (1942-01-01), McConnell
patent: 3693385 (1972-09-01), Fujino et al.
patent: 4194382 (1980-03-01), Kajiwara
patent: 4299109 (1981-11-01), Matsumoto et al.
Hitachi's Technical paper, entitled "HC-Mill, Hitachi High Crown Control Mill" (not dated).

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