COPPER GRAPHITE BRUSH
PROBLEM TO BE SOLVED: To prevent increase of electric resistance of a lead-wire-attached part and a brush, in a lead-less copper graphite brush. SOLUTION: This copper graphite brush includes particles with an average particle diameter of 15 μm or less, of a copper - zinc alloy containing zinc of 10-...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To prevent increase of electric resistance of a lead-wire-attached part and a brush, in a lead-less copper graphite brush. SOLUTION: This copper graphite brush includes particles with an average particle diameter of 15 μm or less, of a copper - zinc alloy containing zinc of 10-50 mass%, in an amount of 1-10 mass% with respect to the main part of the lead-less copper graphite brush containing graphite, copper and a solid lubricant of a metal sulfide. COPYRIGHT: (C)2003,JPO |
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