Patent US5162157A successfully refreshed from Google Patents.
US5162157A
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Sliding material and method of manufacturing the same
Assignee: Daido Metal Co Ltd
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Filing: 1991-02-26
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Granted: 1992-11-10
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Expires: 2011-02-26
Abstract
Abstract Disclosed are a sliding material comprising a backing metal having a porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein the composition for impregnation coating is a composition composed of (a) 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, and the remaining portion substantially composed of PTFE, a sliding material comprising a backing metal having porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein the composition for impregnation coating is a composition composed of (b) 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, 0.5-30 vol % of at least one kind selected from a group B (filler) composed of solid lubricant such as metal oxide, metal fluoride, graphite, and the like, a fiber material such as carbon fiber, glass fiber, and the like, and ceramics such as SiC, and the like, and the remaining portion substantially composed of PTFE, a total of the respective components other than the PTFE being 5.5-50 vol %, and a method of manufacturing a sliding material comprising the steps of impregnating and covering the above composition for impregnation coating (a) or (b) to the pores and the surface thereof defined in the porous metal layer formed on the surface of a backing metal, and thereafter baking the backing metal with the above composition for impregnation coating (a) or (b) in a neutral atmosphere or in a reducing atmosphere.
Inventors
- 👤 Tadashi Tanaka
- 👤 Hidehiko Tamura
- 👤 Kiyohide Uenaka
- 👤 Shigemasa Hakakoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C08; C08K; C08K3/00; C08K3/02; C08K3/08; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12042; Y10T428/12049
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
A sliding material comprising a backing metal having a porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein said composition for impregnation coating is a composition composed of: (a) 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, and the remaining portion substantially composed of polytetrafluoroethylene.
Claim 2
Dependent Claim
79 words
A sliding material comprising a backing metal having a porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein said composition for impregnation coating is a composition composed of: (a) 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, and the remaining portion substantially composed of polytetrafluoroethylene.
Claim 3
Independent Claim
83 words
A method of manufacturing a sliding material comprising the steps of impregnating and covering a porous metal layer formed on a surface of a backing metal with an impregnation coating composition composed of 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, and the remaining portion substantially composed of polytetrafluoroethylene, and thereafter baking the backing metal with said composition for impregnation coating in a neutral atmosphere or in a reducing atmosphere.
Claim 4
Independent Claim
83 words
A method of manufacturing a sliding material comprising the steps of impregnating and covering a porous metal layer formed on a surface of a backing metal with an impregnation coating composition composed of 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, and the remaining portion substantially composed of polytetrafluoroethylene, and thereafter baking the backing metal with said composition for impregnation coating in a neutral atmosphere or in a reducing atmosphere.
Claim 5
Dependent Claim
114 words
A sliding material comprising a backing metal having porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein said composition for impregnation coating is a composition composed of: 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, 0.5-30 vol % of at least one member selected from the group consisting of a solid lubricant, a fiber material and a ceramic, and the remaining portion substantially composed of polytetrafluoroethylene, a total of the respective components other than the polytetrafluoroethylene being 5.5-50 vol %.
Claim 6
Dependent Claim
114 words
A sliding material comprising a backing metal having porous metal layer formed on the surface thereof in which pores are defined and a composition for impregnation coating impregnated and coated to the pores and the surface thereof, wherein said composition for impregnation coating is a composition composed of: 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, 0.5-30 vol % of at least one member selected from the group consisting of a solid lubricant, a fiber material and a ceramic, and the remaining portion substantially composed of polytetrafluoroethylene, a total of the respective components other than the polytetrafluoroethylene being 5.5-50 vol %.
Claim 7
Independent Claim
109 words
A method of manufacturing a sliding material comprising the steps of impregnating and covering a porous metal layer formed on a surface of a backing metal with a composition for impregnation coating composed of 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, 0.5-30 vol % of at least one member selected from the group consisting of a solid lubricant, a fiber material, and ceramic, and the remaining portion substantially composed of polytetrafluoroethylene being 5.5-50 vol %, and thereafter baking the backing metal with said composition for impregnation coating in a neutral atmosphere or a reducing atmosphere.
Claim 8
Independent Claim
109 words
A method of manufacturing a sliding material comprising the steps of impregnating and covering a porous metal layer formed on a surface of a backing metal with a composition for impregnation coating composed of 5-30 vol % of metal lead having a relative surface area of 1,000-8,500 cm 2 /g in an average particle size, 0.5-30 vol % of at least one member selected from the group consisting of a solid lubricant, a fiber material, and ceramic, and the remaining portion substantially composed of polytetrafluoroethylene being 5.5-50 vol %, and thereafter baking the backing metal with said composition for impregnation coating in a neutral atmosphere or a reducing atmosphere.
Claim 9
Dependent Claim
20 words
A sliding material according to claim 3, wherein said solid lubricant is a metal oxide, a metal fluoride or graphite.
Claim 10
Dependent Claim
17 words
A sliding material according to claim 3, wherein said fiber material is carbon fiber or glass fiber.
Claim 11
Dependent Claim
12 words
A sliding material according to claim 3, wherein said ceramic is SiC.
Claim 12
Dependent Claim
30 words
A sliding material according to claim 7, wherein said solid lubricant is a metal oxide, a metal fluoride or graphite, and said fiber material is carbon fiber or glass fiber.
Claim 13
Dependent Claim
24 words
A method of manufacturing a sliding material according to claim 4, wherein said solid lubricant is a metal oxide, a metal fluoride or graphite.
Claim 14
Dependent Claim
21 words
A method of manufacturing a sliding material according to claim 4, wherein said fiber material is carbon fiber or glass fiber.
Claim 15
Dependent Claim
16 words
A method of manufacturing a sliding material according to claim 4, wherein said ceramic is SiC.
Claim 16
Dependent Claim
34 words
A method of manufacturing a sliding material according to claim 11, wherein said solid lubricant is a metal oxide, a metal fluoride or graphite, and said fiber material is carbon fiber or glass fiber.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |