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Title:
IMPELLER FOR ROTARY MACHINE, COMPRESSOR, SUPERCHARGER, AND METHOD FOR MANUFACTURING IMPELLER FOR ROTARY MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/208390
Kind Code:
A1
Abstract:
The impeller comprises: an impeller body (21) which includes a surface part (27) formed to a fixed depth (D) from a surface (21a) thereof, and which is made of Al or an Al alloy; and an Ni-P-based electroless-plated film (23) covering the surface (21a) of the impeller body (21), wherein the surface part (27) has a first compressive residual stress (P1).

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Inventors:
ARAI TAKASHI (JP)
Application Number:
PCT/JP2016/066201
Publication Date:
December 07, 2017
Filing Date:
June 01, 2016
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F02B39/00
Foreign References:
JP2014163345A2014-09-08
JP2008519933A2008-06-12
JPH0839432A1996-02-13
JP2000230544A2000-08-22
JP2010202900A2010-09-16
JPH09303289A1997-11-25
US20050056013A12005-03-17
Other References:
See also references of EP 3421755A4
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
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