SEAL PART
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United States of America Patent
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app pub date -
Oct 22, 2010
filing date -
Sep 30, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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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.
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