Sheet crown control method and rolling equipment line for endles

Metal deforming – By use of roller or roller-like tool-element – With carrier for roller-couple or tool-couple

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723662, 228158, B21B 124

Patent

active

055310893

ABSTRACT:
A sheet crown control method and apparatus for use in endless rolling in which consecutively fed sheets are joined to each other to be continuously rolled through a rolling equipment line. The rolling equipment line includes a junction device for joining consecutively fed sheets to each other, a plurality of stands arranged in tandem on the downstream side of the junction device and having a roll bender load adjusting mechanism and a roll crossing mechanism. The roll cross angle of rolls incorporated in a stand of each rolling mill is set at a predetermined value beforehand if there is a roll cross angle that will enable a target sheet crown to be applied to each sheet and the roll bender load of each stand is adjusted on-line, thereby effecting sheet crown control. Rolling also may be performed while adjusting the roll cross angle of rolls incorporated in stands of each rolling mill on-line together with the roll bender load. The roll bender load and the roll cross load may be adjusted in a transition region where a junction between sheets exists or in a stationary region where sheets of the same material follow one after another.

REFERENCES:
patent: 4805492 (1989-02-01), Tsuruda
patent: 4864836 (1989-09-01), Ochiai
patent: 5121873 (1992-06-01), Sekiya et al.
patent: 5219114 (1993-06-01), Kajiwara et al.
patent: 5365764 (1994-11-01), Kajiwara et al.

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