Method for continuous tension leveling of aluminum strip
AssigneeAlcan International Limited
InventorsHélène Lagacé, Garry Boles
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Abstract
An aluminum alloy sheet of the AA 6000 series is subjected to a continuous tension leveling procedure. The sheet is passed through a set of pull rollers and a set of brake rollers and subjected to a longitudinal tension between the two roller sets. Also while travelling under longitudinal tension between the two sets of rollers, the sheet is subjected to bending and reverse bending over a series of small rollers at a wrap angle in the range of about 0 to 12°.
Claims7
A method for continuous tension leveling of AA 6000 series aluminum alloy strip comprising the steps of (a) providing AA series aluminum alloy strip, (b) passing the strip through a set of pull rollers and a set of brake rollers and subjecting the strip to a longitudinal tension between the two sets of rollers and (c) while the strip is under longitudinal tension between the pull rollers and the brake rollers passing the strip between a series of small rollers positioned above and below the strip while subjecting the strip to bending and reverse bending over the rollers at a wrap angle of no more than about 12°.
Dependencies are inferred from the claim text.