COMPOSITE ALUMINUM PANEL Russian patent published in 2004 - IPC

FIELD: manufacture of building materials.

SUBSTANCE: composite aluminum panel serving as constituent of aluminum structures and welded units comprises two parallel slabs or two sheets attached to the tops and cavities of corrugated stiffening elements, this element being disposed between parallel slabs or sheets. Corrugated stiffening element is made from rolled aluminum alloy sheet including, wt %: Mg 1.5-60, Mn 0.3-1.4, Zn 0.4-5.0, Fe up to 0.5, Si up to 0.5, Zr up to 0.30, and optionally one or more following components: Cr 0.05-0.30, Ti 0.01-0.20, V 0.05-0.25, Ag 0.05-0.40, Cu up to 0.40, and inevitable impurities in amount up to 0.05% and in sum up to 0.15% and showing, in H-state or in O-state, ratio of conventional elasticity limit to breaking point at stretching in arrange of 0.4 to 0.9.

EFFECT: increased strength, shaping ability at elevated strength, and weldability of corrugated stiffening element.

7 cl, 11 dwg, 3 tbl, 3 ex