Method and appliance for making isotropically finished seal ring of seal assembly for machine
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United States of America Patent
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Aug 27, 2020
Grant Date -
Aug 27, 2020
app pub date -
Feb 27, 2019
filing date -
Feb 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished.
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