Plasma spraying apparatus
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United States of America Patent
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Feb 6, 2018
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app pub date -
Dec 17, 2012
filing date -
Dec 17, 2012
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Abstract
A plasma spraying apparatus includes a cathode, a first gas nozzle surrounding a head of the cathode therewith to form a first gas path outside of the cathode, and a second gas nozzle surrounding the first gas nozzle therewith to form a second gas path outside of the first gas nozzle. The second gas nozzle is formed with a wire path through which a wire is inserted such that a distal end of the wire is disposed in front of a nozzle opening of the second gas nozzle. The wire path has a substantially rectangular cross section having a longer side extending in a direction in which a plasma flame extends, the wire path causing the wire to bend within an elastic limit of the wire.
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