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    • 7. 发明申请
    • Impact absorbing material
    • 冲击吸收材料
    • US20050087266A1
    • 2005-04-28
    • US10882088
    • 2004-06-30
    • Shinji Makino
    • Shinji Makino
    • C22C21/10C22F1/053
    • C22C21/10C22F1/053
    • An impact absorbing material formed by: casting an aluminum alloy into a billet, the aluminum alloy including 5.6 to 6.6 wt % of zinc, 0.75 to 1.10 wt % of magnesium, 0.10 to 0.25 wt % of copper, 0.05 to 0.20 wt % of manganese, 0.03 to 0.15 wt % of chromium, 0.10 to 0.25 wt % of zirconium, 0.02 to 0.10 wt % of silicon, 0.05 to 0.17 wt % of iron, and the balance being aluminum and unavoidable impurities; extruding the billet to obtain an extruded shape having a hollow cross-section; and subjecting the extruded shape to artificial aging so that 0.2% proof stress is in a range of 340 to 385 MPa.
    • 通过以下方法形成的冲击吸收材料:将铝合金铸造成钢坯,所述铝合金包含锌,锌,锡,铜,铜,铜,铜,铜,铜,铜,铝, ,0.03〜0.15重量%的铬,0.10〜0.25重量%的锆,0.02〜0.10重量%的硅,0.05〜0.17重量%的铁,余量为铝和不可避免的杂质; 挤出坯料以获得具有中空横截面的挤出形状; 并将挤出形状进行人造时效,使得0.2%的屈服应力在340〜385MPa的范围内。