Low-friction seal ring with inexpensive diamond coating
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United States of America Patent
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Apr 21, 2015
Grant Date -
Nov 28, 2013
app pub date -
Oct 4, 2011
filing date -
Dec 17, 2010
priority date (Note) -
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Abstract
The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 μm, particularly less than or equal to 3 μm, particularly less than or equal to 2 μm, particularly preferably about 1 μm, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 μm.
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