Method for processing surfaces of aluminium alloy sheets and strips
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United States of America Patent
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Issued Date -
Feb 1, 2007
app pub date -
Jun 9, 2004
filing date -
Jun 11, 2003
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Abandoned
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Abstract
A method for processing the surface of a strip, sheet or a shaped part made of an aluminum alloy which involves the preparation of a surface with the aid of an atmospheric pressure plasma and by a chemical conversion treatment using at least the elements Si, Ti, Zr, Ce, Co, Mn, Mo and V, for producing a conversion coating on the strip, sheet or part. The process is more rapid and less costly than previous conversion treatments and is applied, in particular, for strips and sheets which are used for a car body and assembled by welding or gluing.
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