Method and system for controlling a plate width

Details Method and system for controlling a plate width Method and system for controlling a plate width

1981-05-14

1983-06-07

Husar, Francis S.

Metal deforming

By use of tool acting during relative rotation between tool...

Tool orbiting or rotating about an axis

72 16, 72366, B21B 3702

Patent

active

043865119

ABSTRACT:
In a method and a system for controlling a plate width in a hot rolling mill having a front stage including a horizontal roll stand; and a rear stage including a vertical roll stand and a horizontal roll stand, the thickness of a thickened portion of the plate thickened as a result of rolling by the vertical roll stand of the rear stage and the plate thickness at the entrance of the vertical roll stand of the rear stage are determined; the ratio of the thickness of the thickened portion to the plate thickness at the entrance of the rear stage is calculated; the plate width at the exit of the vertical roll stand is determined; the plate width at the exit of the horizontal roll stand of the rear stage is calculated taking account of extension of the plate width as a result of reduction of the thickened portion; and the roll gap of the vertical roll stand of the rear stage is controlled in such a manner as to bring the plate width at the exit of the horizontal roll stand of the rear stage closer to a target value.

REFERENCES:
patent: 4294094 (1981-10-01), Okado et al.

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