Metal-graphite brush and production method thereof
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United States of America Patent
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Jul 6, 2004
Grant Date -
Oct 9, 2003
app pub date -
Mar 25, 2003
filing date -
Apr 4, 2002
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Abstract
Ag particles produced by chemical reduction and having a mean particle size of 5 .mu.m are added by 0.05-3 wt % and Zn are added by 2-10 wt % to a Pb-less brush body containing graphite, Cu and a metal sulfide solid lubricant of a metal-graphite brush.
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