B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 9/04 (2006.01) B32B 15/20 (2006.01) B32B 37/14 (2006.01) C04B 35/536 (2006.01) C04B 37/02 (2006.01) F16J 15/12 (2006.01) H01L 21/48 (2006.01) H01L 23/373 (2006.01)
Patent
CA 2581075
A multilayer expanded graphite-based material is metal-reinforced and comprises at least one internal layer (10) made of expended recompacted graphite and two external metal layers (20), wherein said expended recompacted graphite has a density greater than 1.6 g/cm3. The thickness of each external metal layer (20) is less one tenth of the total thickness of the multilayer structure. The external metal layers (20) are advantageously provided with pins (21) which are uniformly distributed and oriented towards the internal layer (10) made of expended recompacted graphite and whose density is greater than 25 per dm2 and the height is greater than 15 % of the total thickness of the internal layer (10) made of expended recompacted graphite. Said pins can be embodied by perforating the external metal layer (20), wherein the wall around the perforated hole is shaped in the form of a substentially axisymmetric excrescence.
Matériau multicouche à base de graphite expansé renforcé par un métal comprenant au moins une couche interne (10) en graphite expansé recomprimé et deux couches externes métalliques (20), le graphite expansé recomprimé ayant une densité supérieure à 1,6 g/cm3. Chaque couche externe métallique (20) a une épaisseur inférieure au dixième de l'épaisseur totale de la structure multicouche. Les couches externes métalliques (20) sont avantageusement munies de picots (21 ) régulièrement répartis et orientés vers la couche interne (10) en graphite expansé recomprimé, la densité desdits picots (21 ) étant supérieure à 25 par dm2 et leur hauteur étant supérieure à 15% de l'épaisseur finale de la couche interne (10) en graphite expansé recomprimé. Lesdits picots peuvent résulter d'une perforation de la couche externe métallique (20), la paroi autour de l'orifice perforé étant déformée et présentant la forme d'une excroissance sensiblement axisymétrique.
Carbone Lorraine Composants
Smart & Biggar
LandOfFree
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