Composite body, especially a motor vehicle body element

Details Composite body, especially a motor vehicle body element Composite body, especially a motor vehicle body element

B - Operations, Transporting

62

D

B62D 29/00 (2006.01) B32B 15/04 (2006.01) B32B 27/04 (2006.01) B62D 25/06 (2006.01) B62D 29/04 (2006.01)

Patent

CA 2326176

The invention relates to a flat composite body (12) with an asymmetric layer construction comprised of a first layer (13) made of a metallic material, an intermediate layer (17), and a second layer (15) made of a non-metallic material. A non-woven material (14) is placed between the first layer (13) and the intermediate layer (17), and a fiber mat (16) is placed between the intermediate layer (17) and the second layer (15). Both the non-woven material (14) and the fiber mat (16) are provided with an epoxide resin bonding substance. The inventive flat composite body (12) having a low weight exhibits a high dimensional stability and rigidity and additionally comprises a good paintability.

L'invention concerne un corps composite plat (12) à structure stratifiée asymétrique, comprenant une première couche (13) en matériau métallique, une couche intermédiaire (17) et une deuxième couche (15) en matériau non métallique. Un non-tissé (14) est placé entre la première couche (13) et la couche intermédiaire (17), et un mat de fibres (16) est placé entre la couche intermédiaire (17) et la deuxième couche (15). Le non-tissé (14) et le mat de fibres (16) contiennent un liant de résine époxyde. Ce corps composite plat (12) présente, pour un poids réduit, une stabilité dimensionnelle et une rigidité élevées, ainsi qu'une bonne aptitude à la mise en peinture.

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