CPC C22C 9/02 (2013.01) [B22F 1/00 (2013.01); C22C 12/00 (2013.01)] | 2 Claims |
1. A copper alloy sliding material comprising 0.5 to 12.0 mass % of Sn, 2.0 to 8.0 mass % of Bi, and 1.0 to 5.0 vol % of an inorganic compound, the balance being Cu and inevitable impurities,
wherein the inorganic compound includes a first inorganic compound which has an average particle size of 0.5 to 3.0 μm and a second inorganic compound which has an average particle size of 4.0 to 20.0 μm and is different from the first inorganic compound, and
wherein a value obtained by dividing a volume fraction of the first inorganic compound by a volume fraction of the second inorganic compound is 0.1 to 1.0; and
wherein the Vickers hardness of each of the first inorganic compound and the second inorganic compound is greater than 1100.
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