Metal deforming – By use of roller or roller-like tool-element – With carrier for roller-couple or tool-couple
Patent
1995-06-22
1997-08-12
Larson, Lowell A.
Metal deforming
By use of roller or roller-like tool-element
With carrier for roller-couple or tool-couple
72247, 722418, B21B 3107, B21B 3132, B21B 1314
Patent
active
056553978
ABSTRACT:
The rolling mill includes upper and lower work rolls, a roll bending apparatus for applying a bending force to the upper and lower work rolls, a roll shifter for axially shifting the upper and lower work rolls in opposite directions, and a back-up roll for supporting the upper and lower work rolls. The upper and lower work rolls have a bus having a contour comprising first to fifth regions. The rolling mill is adapted to have the large changability of plate crown effected by the roll shifting on plates with narrow or intermediate widths. The use of a combination of roll shifting and roll bending causes contours of the upper and lower work rolls to overlap deflection of the upper and lower work rolls, resulting in that a smooth roll diameter profile across the width of the plate to be rolled where the upper and lower work rolls contact the plate. Thus, it is possible to minimize the difference in a roll diameter, and to enhance the plate crown controllability, even for a plate having an intermediate or narrow width.
REFERENCES:
patent: 4881396 (1989-11-01), Seidel et al.
patent: 4898014 (1990-02-01), Ginzburg et al.
Honjou Hisashi
Satoh Kazuyuki
Satoh Masayoshi
Butler Rodney A.
Ishikawajima-Harima Heavy Industries Co. Ltd.
Larson Lowell A.
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