Nickel-aluminide based wear resistant material for piston rings
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-01504
F02F-00300
출원번호
US-0469686
(2002-03-18)
우선권정보
SE-0001089 (2001-03-27)
국제출원번호
PCT/SE02/00503
(2003-09-03)
§371/§102 date
20030903
(20030903)
국제공개번호
WO02/08840
(2002-11-07)
발명자
/ 주소
Aram, Mehdi
출원인 / 주소
Koncentra Holding AB
대리인 / 주소
Burns, Doane, Swecker &
인용정보
피인용 횟수 :
1인용 특허 :
4
초록▼
A piston ring comprises a coating of a wear-resistant composite composition, particularly intended for high temperature applications. The wear-resistant composite composition comprises a ceramic compound and at least 50 volume %, based on the total volume of the wear-resistant composition, of an int
A piston ring comprises a coating of a wear-resistant composite composition, particularly intended for high temperature applications. The wear-resistant composite composition comprises a ceramic compound and at least 50 volume %, based on the total volume of the wear-resistant composition, of an intermetallic nickel-aluminide chosen from the group consisting of NiAl and Ni3Al. A piston ring comprises a wear-resistant composite composition, particularly intended for high temperature applications. The wear-resistant composite composition comprises a ceramic compound and at least an intermetallic nickel-aluminide chosen from the group consisting of NiAl and Ni3Al.
대표청구항▼
1. A piston ring comprising a coating of a wear-resistant composite composition, particularly intended for high temperature applications, the wear-resistant composite comprising a ceramic compound, wherein said wear-resistant composition also comprises at least 50 volume %, based on the total volume
1. A piston ring comprising a coating of a wear-resistant composite composition, particularly intended for high temperature applications, the wear-resistant composite comprising a ceramic compound, wherein said wear-resistant composition also comprises at least 50 volume %, based on the total volume of the wear-resistant composition, of an intermetallic nickel-aluminide chosen from the group consisting of NiAl and Ni3Al.2. A piston ring according to claim 1, wherein said composition comprises a matrix formed by an intermetallic nickel-aluminide chosen from said group consisting of NiAl and Ni3Al.3. A piston ring according to claim 2, wherein the intermetallic nickel-aluminide is a mixture of NiAl and Ni3Al.4. A piston ring according to claim 1, wherein the intermetallic nickel-aluminide is a mixture of NiAl and Ni3Al.5. A piston ring according to claim 1, wherein the ceramic compound is Cr3C2.6. A piston ring according to claim 1, wherein the ceramic compound is a chromium oxide.7. A piston ring according to claim 1, wherein the ceramic compound is SiC.8. A piston ring according to claim 1, wherein the ceramic compound is aluminum oxide.9. A piston ring according to claim 1, wherein the composition comprises between 70-99 volume % intermetallic nickel-aluminide based on the total volume of the wear-resistant composition.10. A piston ring according to claim 1, wherein the composition comprises between 90-95 volume % intermetallic nickel-aluminide based on the total volume of the wear-resistant composition.11. A piston ring according to claim 1, wherein said chromium oxide is Cr2O3.12. A piston ring according to claim 1, wherein said aluminum oxide is Al2O3.13. The piston ring according to claim 1, wherein the wear-resistant composite composition consists essentially of the ceramic compound and the intermetallic nickel-aluminide.14. A piston ring comprising a wear-resistant composite composition, particularly intended for high temperature applications, the wear-resistant composite composition comprising a ceramic compound, wherein said wear-resistant composition also comprises at least an intermetallic nick-aluminide chosen from the group consisting of NiAl and Ni3Al.15. A piston ring according to claim 14, wherein said composition comprises a matrix formed by an intermetallic nickel-aluminide chosen from said group consisting of NiAl and Ni3Al.16. A piston ring according to claim 14, wherein the intermetallic nickel-aluminide is a mixture of NiAl and Ni3Al.17. A piston ring according to claim 14, wherein the ceramic compound is Cr3C2.18. A piston ring according to claim 14, wherein the ceramic compound is a chromium oxide.19. A piston ring according to claim 14, wherein the ceramic compound is SiC.20. A piston ring according to claim 14, wherein the ceramic compound is aluminum oxide.21. A piston ring according to claim 14, wherein the composition comprises at least 50 volume % intermetallic nickel-aluminide based on the total volume of the wear-resistant composition.22. A piston ring according to claim 14, wherein the composition comprises between 70-99 volume % intermetallic nickel-aluminide based on the total volume of the wear-resistant composition.23. A piston ring according to claim 14, wherein the composition comprises between 90-95 volume % intermetallic nickel-aluminide based on the total volume of the wear-resistant composition.24. A piston ring according to claim 14, wherein said chromium oxide is Cr2O3.25. A piston ring according to claim 14, wherein said aluminum oxide is Al2O3.26. The piston ring according to claim 14, wherein the wear-resistant composite composition consists essentially of the ceramic compound and the intermetallic nickel-aluminide.27. A piston ring formed by the process of:preparing a mixture comprising a ceramic compound and at least one intermetallic nickel-aluminide; and applying the mixture onto a substrate to produce a wear-resistant coating which forms an outer surface of the piston ring. 28. The piston ring according to claim 27, wherein the mixture comprises Ni3Al and Al2O3.29. The piston ring according to claim 27, wherein the coating comprises a matrix formed by the intermetallic nickel-aluminide which includes Ni3Al.30. The piston ring according to claim 27, wherein the coating comprises a matrix formed by the intermetallic nickel-aluminide, a hard phase and a mixed zone around the hard phase.31. The piston ring according to claim 27, wherein the mixture consists essentially of the ceramic compound and the intermetallic nickel-aluminide.
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이 특허에 인용된 특허 (4)
Tank Eggert (Wernau DEX) Kleinekathfer Wolfgang (Waldstetten DEX), High stress capability, intermetallic phase titanium aluminide coated components.
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