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欧洲专利EP2121997本专利涉及一种用于结构件的时效硬化铝合金,它的主要化学成分(质量分数)如下:3.6%～6.0%Cu、0.15%～1.2%Mg、0.15%～1.1%Ge、0.1%～0.8%Si、Fe<0.25%,余量为铝;另外,还可以含有Zn、Ag和/或Ni等元素,其典型的含量范围是:0.3%～1.3%Zn,0.1%～1.0%Ag。用该铝合金制得的零件最适用于航天航空工业,可采用挤压或锻造的方法
European patent EP2121997 This patent relates to an aluminum alloy for age hardening of structural members, whose main chemical composition (mass fraction) is as follows: 3.6% -6.0% Cu, 0.15% -1.2% Mg, 0.15% -1.1% 0.1% -0.8% Si, Fe <0.25%, balance aluminum; Zn, Ag and / or Ni may also be contained, and the typical content ranges from 0.3% to 1.3% Zn and 0.1% to 1.0% % Ag. Parts made from the aluminum alloy are best suited to the aerospace industry and can be extruded or forged