Lead-free copper-based sintered sliding material and sliding parts
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C22C-009/02
C22C-001/05
C22C-009/04
C22C-009/01
C22C-009/00
F16C-033/12
C22C-009/06
출원번호
US-0265248
(2010-04-27)
등록번호
US-8845776
(2014-09-30)
우선권정보
JP-2009-109637 (2009-04-28)
국제출원번호
PCT/JP2010/057424
(2010-04-27)
§371/§102 date
20111229
(20111229)
국제공개번호
WO2010/126026
(2010-11-04)
발명자
/ 주소
Mukai, Ryo
Koyama, Atsushi
Hamaguchi, Nahomi
Mouri, Kao
Yokota, Hiromi
출원인 / 주소
Taiho Kogyo Co., Ltd.
대리인 / 주소
Westerman, Hattori, Daniels & Adrian, LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
The present invention relates to sliding material provided by sintering a lead-free copper or copper alloy and contains at least one mineral selected from the group consisting of talc, mica, kaolinite mineral and montmorillonite mineral. Pb has conventionally been included in sliding materials for t
The present invention relates to sliding material provided by sintering a lead-free copper or copper alloy and contains at least one mineral selected from the group consisting of talc, mica, kaolinite mineral and montmorillonite mineral. Pb has conventionally been included in sliding materials for the purpose of obtaining conformability and seizure resistance. Despite the absence of Pb, the Pb-free copper-based sliding material and sliding parts according to the present invention have improved sliding properties.
대표청구항▼
1. A lead-free copper-based sintered sliding material, consisting of: a lead-free copper alloy consisting of at least one of the following (a) through (e) and a balance of Cu and inevitable impurities: (a) 15 mass % or less of Sn;(b) 1 mass % or less of P;(c) from 0.1 to 10 mass % of Bi;(d) 30 mass
1. A lead-free copper-based sintered sliding material, consisting of: a lead-free copper alloy consisting of at least one of the following (a) through (e) and a balance of Cu and inevitable impurities: (a) 15 mass % or less of Sn;(b) 1 mass % or less of P;(c) from 0.1 to 10 mass % of Bi;(d) 30 mass % or less in total of at least one of 5 mass % or less of Al, 10 mass % or less of Ni, 5 mass % or less of In; and(e) 40 mass % or less in total of at least one of 5 mass % or less of Al, 10 mass % or less of Ni, greater than 0 to 30 mass % of Zn, 5 mass % or less of In; and, a mineral consisting of talc and impurities;enstatite, wherein the amount of said enstatite is less than the volume amount of said talc; andoptionally, one or both of kaolinite mineral and montmorillonite mineral. 2. The lead-free copper-based sintered sliding material according to claim 1, wherein the content of said mineral is from 0.5 to 0.05 to 10 volume % relative to the entity of the sintered sliding material. 3. The lead-free copper-based sintered sliding material according to claim 1 or 2, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 4. A sliding part comprising a lead-free copper-based sintered sliding material according to claim 1. 5. The sliding part according to claim 4, wherein the content of said mineral is from 0.05 to 10 volume % relative to the entity of the sintered sliding material. 6. The sliding part according to claim 4 or 5, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 7. The sliding part according to claim 4 or 5, wherein a surface thereof in contact with an opposite shaft is finished by machining. 8. A bearing for an automatic transmission, comprising the lead-free copper-based sliding material according to claim 1. 9. A lead-free copper-based sintered sliding material, consisting of: a lead-free copper alloy consisting of at least one of the following (a) through (e) and a balance of Cu and inevitable impurities: (a) 15 mass % or less of Sn;(b) 1 mass % or less of P;(c) from 0.1 to 10 mass % of Bi;(d) 30 mass % or less in total of at least one of 5 mass % or less of Al, 10 mass % or less of Ni, 5 mass % or less of In; and(e) 40 mass %, mass % or less in total of at least one of 5 mass % or less of Al, 10 mass % or less of Ni, greater than 0 to 30 mass % of Zn, 5 mass % or less of In;a mineral consisting of talc and impurities;enstatite, wherein the amount of said enstatite is less than the volume amount of said talc; and,one or both of solid lubricant and a hard particle, wherein said hard particle is selected from the group consisting of Fe2P, Fe3P, FeB, AlN, Mo2C, BN, SiO2 and Si3N4; andoptionally, one or both of kaolinite mineral and montmorillonite mineral. 10. The lead-free copper-based sintered sliding material according to claim 9, wherein the content of said mineral is from 0.05 to 10 volume % relative to the entity of the sintered sliding material. 11. The lead-free copper-based sintered sliding material according to claim 9 or 10, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 12. The lead-free copper-based sintered sliding material according to claim 9 or 10, wherein the contents of said solid lubricant and said hard particles are 0.1 to 0.5 mass % and 1 mass % or less, respectively, based on the entity of the sintered sliding material. 13. The lead-free copper-based sintered sliding material according to claim 12, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 14. The sliding part comprising the lead-free copper-based sliding material according to claim 9. 15. The sliding part according to claim 14, wherein the content of said mineral is from 0.05 to 10 volume % relative to the entity of the sintered sliding material. 16. The sliding part according to claim 14 or 15, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 17. The sliding part according to claim 14 or 15, wherein the contents of said solid lubricant and said hard particles are 0.1 to 0.5 mass % and 1 mass % or less, respectively, based on the entity of the sintered sliding material. 18. The sliding part according to claim 17, wherein said mineral consists of said talc and impurities, as well as one or both of kaolinite mineral and montmorillonite mineral. 19. The sliding part according to claim 14 or 15, wherein a surface thereof in contact with an opposite shaft is finished by machining. 20. A bearing for an automatic transmission, comprising the lead-free copper-based sliding material according to claim 9.
Ikenoue Yutaka (Chiba JPX) Satoh Ryoji (Chiba JPX) Hayashi Koichiro (Chiba JPX) Chikahata Katsunao (Chiba JPX), Sintered metal parts and their production method.
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