Novelis, Inc.

Alcan International Limited

David Skingley Wright

Michael R Kosmicki

Robert Bruce Wagstaff

Rajeev G Kamat

Andrew James Hobbis

David Anthony Gaensbauer

Rodger Brown

Antoine Jean Willy Pralong

Duane E Bendzinski

David Michael Custers

Peter Knelsen

Natasha Iyer

ChangOok Son

Timothy Francis Stanistreet

Renato Rufino Xavier

Alp Manavbasi

Christophe Besson

John A Hunter

Carlos Eboli

Geoffrey M Scamans

Robert William Mallory

Nicolas C Kamp

Young Taeg Park

David Edward Gantzer

Jeremy Mark Brown

Christopher John Davenport

Andrew J Hobbis

James Charles Riggs

Frank Su

Franz Josef Rawe

Andrew Coleman

Daniel B Miller

A rotating magnet heater for metal products, such as aluminum strip, can include permanent magnet rotors arranged above and below a moving metal strip to induce moving or time varying magnetic fields through the metal strip. The changing magnetic fields can create currents (e.g., eddy currents) within the metal strip, thus heating the metal strip. A magnetic rotor set can include a pair of matched magnetic rotors on opposite sides of a metal strip that rotate at the same speed. Each magnetic rotor of a set can be positioned equidistance from the metal strip to avoid pulling the metal strip away from the passline. A downstream magnetic rotor set can be used in close proximity to an upstream magnetic rotor set to offset tension induced by the upstream magnetic rotor set.

Rotating magnet heat induction

Provided herein are systems and methods for containing a viscous material, such as a coolant, on a roll and/or a roll processed engineering material (e.g., a metal strip). In particular, a viscous material containment system can include a movable seal and a gas delivery device. A method for cooling a roll can include applying a viscous material, such as a coolant, to the roll and containing the viscous material on the roll using the viscous material containment system. In some cases, the viscous material containment system can be used to facilitate removal of the viscous material from the roll and/or the roll processed engineering material.

Systems and methods for containing viscous materials in roll processing

Provided herein are systems and methods for containing a viscous material, such as coolant, applied to cool a roll or a roll processed engineering material such as a metal strip. In particular, a viscous material containment system can include a housing, a viscous material delivery system, a plurality of movable seals and a plurality of gas delivery devices. A method for cooling a roll can include applying a vicious material, such as coolant, to the roll and containing the viscous material on the roll using the viscous material containment system. In some cases, the viscous material containment system can be used to facilitate removal of the viscous material from the roll.

Systems and methods for cooling a roll in metal processing

This application discloses methods of preparing a work roll for applying a dulled gloss finish on a metal substrate surface. The resulting finish has a fairly uniform glossiness with a slightly matted appearance and with minimal directionality. The work rolls have an Ra value of from 0.2 to 0.4 &#x3bc;m and an Rz value of less than 3.0 &#x3bc;m. Methods of forming a dulled gloss finish on a metal substrate are also described herein.

Methods for forming a work roll and a dulled gloss finish on a metal substrate

The invention relates to an aluminum alloy lithographic sheet product having an enhanced electrolytic graining response in which Zn between 0.5 and 2.5 wt % is added to an aluminum base alloy, in particular an alloy of the 1XXX, 3XXX or 5XXX series alloys. The invention also relates to a method of producing a lithographic sheet product.

Aluminium lithographic sheet

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

The invention is particularly directed to the problem of creep deformation in a coiled aluminum strip, which occurs during coiling and for a period thereafter. The problem arises because the profile of the strip across its width is not flat, and is in fact usually thicker in the middle than at the edges (positive crown). To compensate for this, the invention provides that the spool onto which the coil is wound is adapted to provide more support to the strip in the center than at the edges, by making the central portion of the spool of a greater diameter than the end portions of the spool. A strip having a positive crown which is wound onto such a spool was found to exhibit significantly reduced creep strain, leading to reduced creep deformation.

Storage and transportation of aluminium strip

Growing community of inventors

Rosdorf-Dramfeld, Germany

David Skingley Wright