| 摘要 |
<p>An aluminum alloy sheet used for aircraft fuselage is plated on one or two surfaces with a AlZn alloy. A sheet plated on one or two surfaces is made up of a core sheet of an alloy with a composition (% by weight) of 0.7 - 1.3 Si, 0.6 - 1.2 Mg, 0.5 - 1.1 Cu, 0.15 - 1.0 Mn, less than 0.5 Zn, less than 0.5 Fe, less than 0.2 Zr, less than 0.25 Cr, other elements less than 0.5 each and totaling less than 0.15 and the balance aluminum and with a plating of aluminum alloy with a thickness of between 1 - 15% of the total thickness. The plating alloy is a AlZn alloy with a composition (% by weight) of 0.25 - 0.7 Zn, less than 0.40 Fe, less than 0.40 Si, less than 0.10 Cu, Mn, Mg V or Ti and other elements less than 0.05 each and 0.15 in total. Independent claims are included for structural elements using these plated sheets, a method for the fabrication of these structural elements and aircraft fuselage panels using these plated sheets.</p> |
