Invention Application
US20150059934A1 HIGH-STRENGTH ALUMINUM ALLOY THIN EXTRUDED SHAPE AND METHOD FOR PRODUCING THE SAME
审中-公开
高强度铝合金薄型挤压成型及其制造方法
- Patent Title: HIGH-STRENGTH ALUMINUM ALLOY THIN EXTRUDED SHAPE AND METHOD FOR PRODUCING THE SAME
- Patent Title (中): 高强度铝合金薄型挤压成型及其制造方法
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Application No.: US14472902Application Date: 2014-08-29
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Publication No.: US20150059934A1Publication Date: 2015-03-05
- Inventor: Yoshifumi SHINZATO , Hidenori HATTA
- Applicant: UACJ Corporation
- Priority: JP2013-178902 20130830; JP2014-138398 20140704
- Main IPC: C22F1/053
- IPC: C22F1/053 ; C22C21/10

Abstract:
An Al—Zn—Mg—Cu-based high-strength aluminum alloy thin extruded shape has a yield strength of 700 MPa or more. The high-strength aluminum alloy thin extruded shape includes 9.0 to 13.0 mass % of Zn, 2.0 to 3.0 mass % of Mg, 1.0 to 2.0 mass % of Cu, and 0.05 to 0.3 mass % of Zr, with the balance being Al and unavoidable impurities, fine precipitates having a circle equivalent diameter of 5 to 20 nm being dispersed in a crystal grain of the extruded shape in a number of 4000 to 6000 per μm2.
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