Resin bonded carbonaceous brush and method of manufacturing the same
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United States of America Patent
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Jan 26, 2021
Grant Date -
Feb 16, 2017
app pub date -
Apr 7, 2015
filing date -
Apr 23, 2014
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Abstract
A carbonaceous material is fabricated by kneading of carbon powder and a binder. The carbonaceous material is granulated such that an average particle diameter of the carbonaceous material is 0.3 mm or more. A brush material is fabricated by mixing of the granulated carbonaceous material and metallic powder. A ratio of the metallic powder to a total weight of the brush material is adjusted to 1% by weight or more and 30% by weight or less. Pressure molding is performed on the fabricated brush material, and thermal processing is further performed on the brush material at a temperature at which a resin in the brush material is not carbonized.
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