Title:
COMPRESSOR IMPELLER CAST FROM AL ALLOY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/141191
Kind Code:
A1
Abstract:
The present invention provides: a compressor impeller that is cast from an aluminum alloy, has superior production characteristics, and exhibits stable high-temperature strength when used at temperatures around 200°; and a method for producing same. The compressor impeller that is cast from an Al alloy is provided with a boss section, a plurality of vane sections, and a disc section; the boss section, the plurality of vane sections, and the disc section excluding the end section comprise an Al alloy comprising a predetermined metal composition; and at the end section of the disc section, there are at least 10,000/mm2 of intermetallic compounds having a circle-equivalent diameter of 1-6 μm, and there are no greater than 500/mm2 of intermetallic compounds having a circle-equivalent diameter exceeding 6 μm.
Inventors:
KUBO TAKASHI (JP)
TAKAHASHI KOICHI (JP)
USHIYAMA TOSHIO (JP)
ISHIKAWA NOBUHITO (JP)
TAKAHASHI KOICHI (JP)
USHIYAMA TOSHIO (JP)
ISHIKAWA NOBUHITO (JP)
Application Number:
PCT/JP2015/001340
Publication Date:
September 24, 2015
Filing Date:
March 11, 2015
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/12; B22C9/02; B22C9/22; B22D18/04; B22D21/04; C22F1/057; F02B39/00; F04D29/30
Foreign References:
| JP2012025986A | 2012-02-09 | |||
| JP2008264846A | 2008-11-06 | |||
| JPS5910459A | 1984-01-19 | |||
| JP2015013301A | 2015-01-22 |
Other References:
See also references of EP 3121303A4
Attorney, Agent or Firm:
INOUE, TOSHIO (JP)
Toshio Inoue (JP)
Toshio Inoue (JP)
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