Invention Grant
- Patent Title: Axial feed plasma spraying device
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Application No.: US14130608Application Date: 2012-06-07
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Publication No.: US10576484B2Publication Date: 2020-03-03
- Inventor: Kenzo Toyota
- Applicant: Kenzo Toyota
- Applicant Address: JP
- Assignee: Shinwa Industry Co., Ltd.
- Current Assignee: Shinwa Industry Co., Ltd.
- Current Assignee Address: JP
- Agency: Price Heneveld LLP
- Priority: JP2011-153415 20110712
- International Application: PCT/JP2012/064636 WO 20120607
- International Announcement: WO2013/008563 WO 20130117
- Main IPC: B05B7/22
- IPC: B05B7/22 ; H05H1/42 ; H05H1/44 ; C23C4/134

Abstract:
A spray coating apparatus includes a cathode and an anode nozzle to form a pair. A front end of the anode nozzle is provided with three or more plasma jet jetting holes, and a spray material jetting hole is disposed at the center of an area surrounded by the plasma jet jetting holes. The spray material jetted through the jetting hole is fed into the center axis of a complex plasma arc or a complex plasma jet. The spray material jetted through the spray material jetting hole is melted at high thermal efficiency, to thereby enhance yield of coating film. Reflection of the spray material by the outer periphery of plasma flame, penetration of the spray material through plasma flame, and scattering of the spray material caused by reflection or penetration, due to the differences in particle diameter, mass, etc. of the spray material is prevented.
Public/Granted literature
- US20140144888A1 AXIAL FEED PLASMA SPRAYING DEVICE Public/Granted day:2014-05-29
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