F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/10 (2006.01) H01M 2/06 (2006.01) H01M 2/08 (2006.01) H01M 8/02 (2006.01) H01M 8/24 (2006.01)
Patent
CA 2537513
A mica based compressive seal has been developed exhibiting superior thermal cycle stability when compared to other compressive seals known in the art. The seal is composed of compliant glass or metal interlayers and a sealing (gasket) member layer composed of mica that is infiltrated with a glass forming material, which effectively reduces leaks within the seal. The compressive seal shows approximately a 100-fold reduction in leak rates compared with previously developed hybrid seals after from 10 to about 40 thermal cycles under a compressive stress of from 50 psi to 100 psi at temperatures in the range from 600 ~C to about 850 ~C.
La présente invention se rapporte à un joint à compression à base de mica, qui présente une meilleure stabilité aux cycles thermiques que les joints à compression des techniques antérieures. Le joint selon l'invention est constitué d'intercouches adaptatives de verre ou de métal, et d'une couche d'un élément d'étanchéité (joint statique) formée de mica et infiltrée d'un matériau vitrifiant, ce qui réduit efficacement les fuites dans le joint. Le joint à compression selon l'invention présente un taux de fuite environ 100 fois inférieur aux joints hybrides précédemment mis au point, après 10 à 40 cycles thermiques, sous une contrainte de compression comprise entre 50 psi et 100 psi, et à des températures allant de 600 ·C à 850 ·C environ.
Chou Yeong-Shyung
Stevenson Jeffry W.
Battelle Memorial Institute
Fetherstonhaugh & Co.
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