Roll profile for both shape control and free ruled rolling

Details Roll profile for both shape control and free ruled rolling Roll profile for both shape control and free ruled rolling

2011-03-29

2011-03-29

Ekiert, Teresa M (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

Roller or roller-like tool-element of particular configuration

Reexamination Certificate

active

07913531

ABSTRACT:
The invention provides a roll profile for work rolls for both shape control and free ruled rolling. Each of the work rolls has a tapered end. The curve of respective tapered end is a quartic curve represented by a formula y(x)=a0+a1x+a2x2+a3x3+a4x4, xε[0,Le], y(x)ε[0,He]. It is possible to partially eliminate the asymmetric deformation due to the difference between abrasion of the upper and lower rolls. Further, closed type abrasion of conventional roll is changed into open type abrasion and box shaped abrasion of conventional roll is eliminated, which eliminating “cat ear” hole and fulfilling the requirements of free ruled rolling.

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PCT ISR WO Jun. 22, 2006.
European Patent Office, European Search Report, Dec. 16, 2008, 5 pages.
Office Action, mailed on May 11, 2010, for JP Patent Application 2008-502229, 5 pages.

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