Aluminum-based composite materials and methods of...

B - Operations – Transporting – 32 – B

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B32B 15/20 (2006.01) B21B 1/38 (2006.01) B21B 3/00 (2006.01) B21B 47/04 (2006.01) B32B 15/01 (2006.01)

Patent

CA 2674037

There are provided multilayer composite materials comprising a first layer comprising aluminum, titanium, brass, copper, steel, or mixtures thereof; a foamable core layer comprising aluminum and a foaming agent; and a second layer comprising aluminum, titanium, brass, copper, steel, or mixtures thereof. The first and second layers can be the same or different. There is also provided a process for preparing such composite materials.

La présente invention concerne des matériaux composites multicouches qui comporte une première couche comprenant de l'aluminium, du titane, du laiton, du cuivre, de l'acier ou leurs mélanges; une couche formant un noyau expansible comprenant de l'aluminium et un agent d'expansion; et une seconde couche comprenant de l'aluminium, du titane, du laiton, du cuivre, de l'acier ou leurs mélanges. Les première et seconde couches peuvent être identiques ou différentes. La présente invention concerne également un procédé de préparation de tels matériaux composites.

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