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US 2017/0283911 A1Published application
Cu-BASED SINTERED BEARING AND PRODUCTION METHOD FOR Cu-BASED SINTERED BEARING
AssigneeDiamet Corporation
InventorsYoshinari ISHII, Shinichi TAKEZOE, Tsuneo MARUYAMA
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Abstract
Provided is a Cu-based sintered bearing comprising: 15-36 mass % of Ni; 3-13 mass % of Sn; 0.05-0.55 mass % of P; and 0.02-4 mass % of C in total, the balance consisting of Cu and inevitable impurities, wherein the content of C forming an alloy with a matrix within Cu—Ni-based main phase grains is 0.02-0.10 mass %.
Claims20
A Cu-based sintered bearing comprising:
- 15 mass % or more and 36 mass % or less of Ni;
- 3 mass % or more and 13 mass % or less of Sn;
- 0.05 mass % or more and 0.55 mass % or less of P;
- 0.02 mass % or more and 4 mass % or less of C in total;
- and
- a balance containing Cu and inevitable impurities, wherein
- a content of C alloyed with a matrix in grains of a Cu—Ni-based main phase is 0.02 mass % or more and 0.10 mass % or less.
4 more elements
A method of producing a Cu-based sintered bearing, the method comprising the steps of:
- mixing one or more raw material powders containing:
- 15 mass % or more and 36 mass % or less of Ni;
- 3 mass % or more and 13 mass % or less of Sn;
- 0.05 mass % or more and 0.55 mass % or less of P;
- and 0.02 mass % or more and 0.10 mass % or less of C;
- and the Cu balance containing inevitable impurities to obtain a mixed powder;
- press-molding the mixed powder to obtain a green compact;
- and
- sintering the green compact after the step of press-molding.
6 more elements
Dependencies are inferred from the claim text.