Title:
FASTENING MEMBER
Document Type and Number:
WIPO Patent Application WO/2021/153286
Kind Code:
A1
Abstract:
A fastening member pertaining to the present invention contains, in terms of mass ratio, 0.6-1.4% silicon, 0.5-5.0% copper, 0.3-1.1% manganese, 0.5-1.3% magnesium, and 0.01-0.8% zinc, the remainder comprising aluminum and unavoidable impurities. The circle-equivalent average crystal grain size in the region from the surface to a depth of 200 µm is 4-50 µm.
Inventors:
KANEDA NORIYOSHI (JP)
YAMAUCHI YUICHIRO (JP)
NAKANO JYUNICHI (JP)
OKABE SATOSHI (JP)
OSAKO SHOHEI (JP)
SUZUKI TAKESHI (JP)
HORIUCHI NAOKI (JP)
MIYAMOTO KOUHEI (JP)
YAMAUCHI YUICHIRO (JP)
NAKANO JYUNICHI (JP)
OKABE SATOSHI (JP)
OSAKO SHOHEI (JP)
SUZUKI TAKESHI (JP)
HORIUCHI NAOKI (JP)
MIYAMOTO KOUHEI (JP)
Application Number:
PCT/JP2021/001361
Publication Date:
August 05, 2021
Filing Date:
January 15, 2021
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
TOPURA KK (JP)
TOPURA KK (JP)
International Classes:
C22C21/18; C22C21/02; C22C21/06; C22F1/00; C22F1/043; C22F1/047; C22F1/057
Domestic Patent References:
| WO2013073575A1 | 2013-05-23 | |||
| WO2017142030A1 | 2017-08-24 |
Foreign References:
| JP2011001602A | 2011-01-06 | |||
| CN104451478A | 2015-03-25 | |||
| JP2010189750A | 2010-09-02 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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