Metallic flat gasket

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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Details

F16J 15/08 (2006.01) B23K 26/00 (2006.01)

Patent

CA 2570702

The present invention relates to a metallic flat gasket (1) having at least one gasket layer (2), in which at least one through opening (3) is located, which is enclosed by a sealing elemen (4) and at least partially has a surface structure (6) on one of its surfaces in the region of the sealing element (4). The surface structure comprises multiple depressions (7) which are positioned neighboring one another and are obtainable by irradiating the surface using laser radiation. The surface structure (6) is outstandingly suitable as a substrate for a coating (11) or an elastomeric sealing element (4). Furthermore, the present invention relates to a method of manufacturing the gasket (1).

L'invention concerne un joint métallique (1) plat comprenant au moins une couche de joint (2) dans laquelle au moins une ouverture traversante (3) entourée d'un élément d'étanchéité (4) est ménagée, et au moins partiellement une structure surfacielle (6) sur l'une de ses surfaces dans la région de l'élément d'étanchéité (4). Ladite structure surfacielle comprend de multiples dépressions (7) qui sont positionnées à proximité les unes des autres et sont obtenues par irradiation de ladite surface à l'aide d'un rayonnement laser. Cette structure surfacielle (6) est parfaitement appropriée pour être utilisée comme substrat de revêtement (11) ou élément d'étanchéité (4) élastomère. L'invention concerne également un procédé permettant de produire ledit joint (1).

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