Stretch-leveling metal strip

Details Stretch-leveling metal strip Stretch-leveling metal strip

2011-06-07

2011-06-07

Tolan, Edward (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

Including tautening of work during deformation

C072S012200, C072S160000, C072S202000

Reexamination Certificate

active

07954351

ABSTRACT:
A metal strip is stretched as it is moved longitudinally generally continuously between an upstream traction-roll set and a downstream traction-roll set. The roll sets are differentially driven—with the downstream set moving at a slightly higher peripheral speed than the upstream set—so as to apply to the strip in a region between the sets a tension generally equal to a stretch limit of the strip. The strip is locally heated or cooled at an upstream location in the region between the roll sets so as to set in the strip in the region a temperature distribution that is nonhomogeneous transversely across the strip at least immediately downstream of the upstream location.

REFERENCES:
patent: 4765169 (1988-08-01), Bradlee
patent: 6327883 (2001-12-01), Noe
patent: 7013693 (2006-03-01), Noe

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