Title:
IMPELLER MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/170731
Kind Code:
A1
Abstract:
The present invention reduces the time required for a smoothing step performed through polishing, etc., so as to improve the efficiency in manufacturing, from molding to smoothing of an impeller. The impeller manufacturing method according to the present invention comprises a molding step S1 for molding an impeller 10 by thermal fusion laminate molding; and a chemical polishing step S2 for polishing a wall 15 that defines a flow channel 14 included in the impeller 10 by bringing a polishing liquid 21 into contact with the wall. In the chemical polishing step S2, fluidity is imparted to the polishing liquid 21 within the flow channel 14. In the chemical polishing step S2, it is preferable for the polishing liquid 21 within the flow channel 14 to be imparted with fluidity by using a device equipped with: a polishing liquid tank 22 for storing the polishing liquid 21 and housing the impeller 10 therein; a channel 23 through which the polishing liquid 21 held in the polishing liquid tank 22 is supplied under pressure; and a supply part 24 which constitutes a terminal end of the channel 23, and which supplies the polishing liquid 21 to an inlet port 141 of each of a plurality of channels 14.
Inventors:
ISHIBASHI YUSUKE (JP)
KAWASUMI SOSUKE (JP)
NAKANIWA AKIHIRO (JP)
KAWASUMI SOSUKE (JP)
NAKANIWA AKIHIRO (JP)
Application Number:
PCT/JP2017/012990
Publication Date:
October 05, 2017
Filing Date:
March 29, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
C23F1/08; B33Y10/00; C23C18/31; C25D7/00; F04D29/28
Foreign References:
| JPS5493628A | 1979-07-24 | |||
| JP2013170500A | 2013-09-02 | |||
| JP2013170499A | 2013-09-02 | |||
| JP2014129575A | 2014-07-10 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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