Title:
MATERIAL FOR ALUMINUM ALLOY SCREW, AND ALUMINUM ALLOY SCREW AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/075389
Kind Code:
A1
Abstract:
The present invention provides an aluminum alloy screw that uses 6000 series aluminum suitable for recycling, that has sufficient mechanical properties, and that can be used for fastening, with respect to automobile parts or the like, which is subjected to loads and is required to be highly reliable. Also provided are: a simple and efficient method for producing this aluminum alloy screw; and an aluminum allow screw material that can be suitably used in said production. The aluminum alloy screw according to the present invention is characterized by containing 0.9-1.3 wt% Si, 0.8-1.5 wt% Cu, 0.8-1.2 wt% Mg, 0.2-0.4 wt% Cr, 0.15-0.45 wt% Mn, 0.005-0.05 wt% Ti, with the remainder including Al and unavoidable impurities, where the tensile properties of the screw shaft section is such that the tensile strength is 460 MPa or more, the 0.2% yield strength is 380 MPa or more, and the breaking elongation is 10% or more.
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Inventors:
TANAI YUICHIRO (JP)
NIWA KENJI (JP)
HANDA TAKESHI (JP)
IKEDA SEIJI (JP)
NIWA KENJI (JP)
HANDA TAKESHI (JP)
IKEDA SEIJI (JP)
Application Number:
PCT/JP2023/028901
Publication Date:
April 11, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
YAMASHINA CORP (JP)
YAMASHINA CORP (JP)
International Classes:
C22C21/02; C22C21/06; C22C21/12; C22F1/00; C22F1/05; C22F1/057; F16B35/00
Foreign References:
| JP2011001602A | 2011-01-06 | |||
| JP2010189750A | 2010-09-02 | |||
| CN112853169A | 2021-05-28 |
Attorney, Agent or Firm:
IPR CONSULTANT PPC (JP)
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