Novelis, Inc.

Christopher John Davenport

John A Hunter

David Skingley Wright

Geoffrey M Scamans

Daniel B Miller

Geoffrey Mack Scamans

John Anthony Hunter

Daniel Baruch Miller

There is provided a method of texturing a metal sheet or strip (), which method comprises a plurality of sequential texturing passes each of which is performed by passing the sheet or strip () between at least one pair of rollers (), wherein at least one of each pair of rollers () has a textured pattern on the surface thereof and the textured patterns are transferred to the sheet or strip () during each texturing pass, and wherein the textured surface on the sheet or strip () resulting from each pass overlaps with that from the one or more other passes to form a final textured pattern. There is also provided an apparatus for texturing a metal sheet or strip ().

Method and apparatus for texturing a metal sheet or strip

Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer () made of steel, and providing the work surface of the roll, separated from a steel core () by an intermediate layer () of material such as aluminium or copper having a lower Young's modules than that of the layer (). Provided that the dimensions of the outer layer () and intermediate layer () are chosen appropriately, this combination can release a work roll having an affective Young's modules which is lower than that of steel whilst at the same time retaining the advantages of a steel work surface and enabling higher rolling speeds.

Work roll

Growing community of inventors

Rugby, United Kingdom

Christopher John Davenport