Method of heat treating bearing materials
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United States of America Patent
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Apr 5, 1988
Grant Date -
N/A
app pub date -
Jun 2, 1986
filing date -
Jun 2, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method of producing a powdered metal aluminum base bearing material is provided. A bearing strip composed of three layers of sintered aluminum base particles which has been roll clad to a rigid backing layer is subjected to a heat treatment procedure in a continuous manner at a temperature of from about 700.degree. F. to about 900.degree. F. for at least thirty seconds and then cooled at a rate of at least 100.degree. F./hr. Bearings made from the resulting material show dramatic fatigue life improvement in comparison to that obtainable with currently available powdered metal aluminum bearing materials.
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