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Title:
ALUMINUM ALLOY, SPRING MADE OF ALUMINUM ALLOY, AND FASTENING MEMBER MADE OF ALUMINUM ALLOY
Document Type and Number:
WIPO Patent Application WO/2019/124554
Kind Code:
A1
Abstract:
The aluminum alloy according to the present invention contains 1.2 to 4.0 mass% (inclusive) of copper, 4.0 to 14.0 mass% (inclusive) of zinc, 0.5 to 4.0 mass% (inclusive) of magnesium, 0.01% or less of silicon, and 0.01% or less of iron; the remainder consists of aluminum and unavoidable impurities; and the average crystal grain size of an equivalent circle is 500 nm or less.

Inventors:
SUZUKI, Takeshi (3-10, Fukuura, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
NAKANO, Jyunichi (3-10, Fukuura, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
Application Number:
JP2018/047360
Publication Date:
June 27, 2019
Filing Date:
December 21, 2018
Export Citation:
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Assignee:
NHK SPRING CO., LTD. (3-10, Fukuura Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
International Classes:
C22C21/10; F16B19/04; F16B35/00; F16B37/00; F16F1/02; F16F1/06; C22F1/00; C22F1/053
Foreign References:
JP2009035766A2009-02-19
JP2001335874A2001-12-04
JP2016141880A2016-08-08
JPH03294445A1991-12-25
JP2017133097A2017-08-03
US20040065173A12004-04-08
Other References:
HORITA, Z. ET AL.: "Improvement of mechanical properties for Al alloys using equal-channel angular pressing", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol. 117, no. 3, 23 November 2001 (2001-11-23), pages 288 - 292, XP055621271, ISSN: 0924-0136
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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