Flatness control in hot strip mill

Details Flatness control in hot strip mill Flatness control in hot strip mill

1979-07-30

1981-04-14

Mehr, Milton S.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72205, 72 17, B21B 3700

Patent

active

042611903

ABSTRACT:
The flatness of metal strip being rolled in a hot strip mill is improved by applying higher than normal interstand tensions with maximum permissible tensions being based upon preestablished maximum allowable width reductions due to interstand tensions. The relationships between interstand tension and interstand plastic deformation are predetermined functions of strip material properties, strip temperature, and assumed tensile stress distribution across the strip width.

REFERENCES:
patent: 3387470 (1968-06-01), Smith, Jr.
patent: 3459019 (1969-08-01), Stone
patent: 3630058 (1971-12-01), Fapiano
patent: 4137741 (1979-02-01), Fapiano et al.
Article "Automatic Shape Control for Hoogovens 88-Inch Hot Strip Mill" by Hollander & Reinen-of record in the appln. dated Apr. 1975, presented to Assoc. of Iron & Stl. Engrs. [Appeared in Iron & Steel Engr. in the Apr. 1976 issue].
Article-"A New Approach to the Computer Set-up of a Hot Strip Mill" by Wilmotte et al.

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