METHOD AND INSTALLATION FOR THE VACUUM COLOURING OF A METAL STRIP BY MEANS OF MAGNETRON SPUTTERING
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United States of America Patent
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Issued Date -
Jun 11, 2009
app pub date -
Jan 22, 2009
filing date -
Nov 7, 2005
priority date (Note) -
Abandoned
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Abstract
A magnetron sputtering method for vacuum coloring a metal strip passing above at least one conductive counter electrode in a vacuum chamber. The method creates a plasma in a gas close to the metal strip, such as to generate radicals and/or ions that act on the strip, a magnetic confinement circuit being positioned above the strip. The counter electrode includes a mobile surface that can move in rotation and/or translation in relation to the metal strip, the surface being moved during the coloring process and being continuously cleaned by a cleaning device that is obscured from the plasma before being exposed once again to the plasma. A coloring installation can implement the method.
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