Gas phase coating process and apparatus for gas-phase coating of workpieces
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United States of America Patent
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-
Mar 20, 2001
Grant Date -
N/A
app pub date -
Jan 28, 1999
filing date -
Jan 30, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
In a gas phase coating process for coating turbines blades or housing parts, one or more workpieces to be coated are arranged in a container that is heated. Propellant is supplied to the container via a propellant pipe. A donor substance is arranged at the floor of the container together with an activator and forms a coating gas that is circulated pulse-like in the interior of the container by means for circulation, for example, a Venturi nozzle from which the propellant emerges.
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