Seal part
AssigneesEagle Engineering Aerospace Co., Ltd., The Society of Japanese Aerospace Companies
InventorsKei KOMUKAI, Tetsuya IGUCHI, Hidetoshi KASAHARA
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Abstract
A seal part having a base material, a porous coating layer formed by flame spraying a hard material on a seal surface of the base material, and a lubricating film containing one or more types of materials selected from silver, gold, and tin and a gold-cobalt alloy on the porous coating layer. The seal part of the present invention has superior durability and sealability and further a long life and high reliability even when used in a high temperature (for example 400° C. or more, in particular 400 to 600° C.) and high pressure (for example 2 MPa or more) environment.
Claims7
A gasket comprising:
- a seal part, the seal part comprising:
- a base material,
- a porous coating layer formed by flame spraying a hard material on a seal surface of said base material, and
- a lubricating film containing one or more types of materials selected from silver, gold, and tin and a gold-cobalt alloy on said porous coating layer,
- wherein the gasket has an E-shaped or W-shaped cross-sectional shape.
Dependencies are inferred from the claim text.