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
  • Application No.: US14472902
    Application Date: 2014-08-29
  • Publication No.: US20150059934A1
    Publication Date: 2015-03-05
  • Inventor: Yoshifumi SHINZATOHidenori HATTA
  • Applicant: UACJ Corporation
  • Priority: JP2013-178902 20130830; JP2014-138398 20140704
  • Main IPC: C22F1/053
  • IPC: C22F1/053 C22C21/10
HIGH-STRENGTH ALUMINUM ALLOY THIN EXTRUDED SHAPE AND METHOD FOR PRODUCING THE SAME
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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