Title:
COLD SPRAY GUN AND COLD SPRAY DEVICE EQUIPPED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2019/009206
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a cold spray gun and a cold spray device equipped therewith that can be operated with the working gas at a high temperature close to the melting or softening point of raw powder by effectively preventing clogging of a raw powder supply port. This purpose is achieved by a cold spray gun that forms a coating by ejecting a supersonic stream of raw powder, carried by a carrier gas, and a working gas heated to a temperature no higher than the melting point or softening point of the raw powder and colliding the raw powder with a substrate while still in a solid phase. The cold spray gun is characterized by being provided with: a chamber for storing the working gas; a cold spray nozzle forming a working gas flow path for turning the working gas discharged from the chamber into the supersonic stream at the exit thereof; a raw powder supply flow path for supplying the raw powder to the working gas discharged from the chamber; and a cooling means for cooling the raw powder supply flow path.
Inventors:
FUKANUMA HIROTAKA (JP)
Application Number:
PCT/JP2018/024845
Publication Date:
January 10, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
PLASMA GIKEN CO LTD (JP)
International Classes:
C23C24/04; B05B7/14; B05B7/16
Foreign References:
| US20130087633A1 | 2013-04-11 | |||
| JP2014156634A | 2014-08-28 | |||
| JP2007308737A | 2007-11-29 | |||
| JP2017006873A | 2017-01-12 | |||
| JP2008253889A | 2008-10-23 | |||
| JP2009531167A | 2009-09-03 |
Other References:
See also references of EP 3650581A4
Attorney, Agent or Firm:
YOSHIMURA, Katsuhiro (JP)
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