Process for applying a phosphate sliding layer to a bearing metal layer
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United States of America Patent
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-
Dec 17, 1991
Grant Date -
N/A
app pub date -
May 18, 1990
filing date -
May 20, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to ensure in sliding surface bearings a uniform distribution of the load over the bearing metal layer, a phosphate layer serving as a sliding layer has been applied to the bearing metal layer. In order to ensure a high resistantce to scuffing, the sliding layer is formed from an aqueous phosphating solution which contains 1.5 to 5.0 g/l Zn, 12 to 24 g/l Na, 11 to 22 g/l P.sub.2 O.sub.5, 17 to 33 g/l 16 to 30 g/l BF.sub.4, 20 to 39 g/l B(OH).sub.3 and 1.0 to 6.0 g/l NaF.
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