IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0778166
(2013-02-27)
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| 등록번호 |
US-9004240
(2015-04-14)
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발명자
/ 주소 |
- Palumbo, Gino
- Tomantschger, Klaus
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| 출원인 / 주소 |
- Integran Technologies Inc.
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
28 |
초록
▼
Grain-refined and amorphous metallic material based friction liners for braking devices as used, e.g., in motor vehicles such as cars, trucks, motorcycles, as well as bicycles and other applications requiring, at least at times, decelerating rotating parts are disclosed. Friction liners can have iso
Grain-refined and amorphous metallic material based friction liners for braking devices as used, e.g., in motor vehicles such as cars, trucks, motorcycles, as well as bicycles and other applications requiring, at least at times, decelerating rotating parts are disclosed. Friction liners can have isotropic or anisotropic properties and the friction surfaces can optionally be rendered hydrophobic.
대표청구항
▼
1. A stationary or rotating friction liner for a brake system having an exposed surface, at least part of said exposed surface defining a friction surface contacting at least one other friction liner surface when a braking force is applied, said stationary or rotating friction liner comprising a met
1. A stationary or rotating friction liner for a brake system having an exposed surface, at least part of said exposed surface defining a friction surface contacting at least one other friction liner surface when a braking force is applied, said stationary or rotating friction liner comprising a metallic material having a microstructure which is fine-grained with an average grain size between 2 and 5,000 nm and/or an amorphous microstructure, a minimum thermal conductivity of 70 W/mK, a minimum heat capacity of 1.75 J/(ml·K), a minimum hardness of 200 VHN and a linear coefficient of thermal expansion in the range of between 0 and 50 10−6 K−1, wherein said friction liner is a component or part of a braking system for a transportation system selected from the group consisting of cars, trucks, motorcycles, all terrain vehicles (ATV), snowmobiles and bicycles,wherein said braking system is selected from the group consisting of a brake rotor, a brake disk, a brake pad and a brake drum, andwherein said metallic material is configured to achieve a deceleration rate from a maximum speed between 25 km/hr and 100 km/hr of at least 5 m/sec2. 2. The friction liner according to claim 1, wherein said metallic material is selected from the group of: (i) one or more metals selected from the group consisting of Ag, Al, Mg, Au, Co, Cr, Cu, Fe, Ni, Mo, Pd, Pt, Rh, Ru, Sn, Ti, W, Zn and Zr,(ii) pure metals or alloys containing at least two of the metals listed in (i), further containing at least one element selected from the group of B, C, H, O, P and S;(iii) any of (i), (ii) or (iii) where said metallic coating also contains particulate additions in the volume fraction between 0 and 95% by volume. 3. The friction liner according to claim 2, wherein said metallic material contains particulate addition and said particulate addition is of one or more materials which is a metal selected from the group consisting of Ag, Al, Cu, In, Mg, Si, Sn, Pt, Ti, V, W, Zn; a metal oxide selected from the group consisting of Ag2O, Al2O3, SO2, SnO2, TiO2, ZnO; a carbide of B, Cr, Bi, Si, W; carbon selected from the group consisting of carbon nanotubes, diamond, graphite, graphite fibers; ceramic, glass; and polymer material selected from the group consisting of PTFE, PVC, PE, PP, ABS, epoxy resin. 4. The friction liner according to claim 1, wherein said metallic material has an average grain size between 2 and 500 nm. 5. The friction liner according to claim 1 which is anisotropic. 6. The friction liner according to claim 5, wherein said metallic material comprises a multilayer laminate having a sublayer thickness in the range of 1.5 nm to 1,000 microns. 7. The friction liner according to claim 6, wherein said multilayers are not aligned parallel to the friction surface. 8. The friction liner according to claim 7, wherein said multilayers are aligned perpendicular to the friction surface. 9. The friction liner according to claim 5, wherein said metallic material is graded or comprises at least one graded layer. 10. The friction liner according to claim 6, wherein said metallic material consists of alternating layers comprising Ni and Cu. 11. The friction liner according to claim 6, wherein said metallic material consists of alternating layers comprising Co and Cu. 12. The friction liner according to claim 1, wherein said metallic material comprises at least one element selected from the group of Ni, Co and Fe and at least one element selected from the group consisting of Cu, Sn and Zn. 13. The friction liner according to claim 6, wherein said metallic material comprises at least one element selected from the group of Ni, Co and Fe and at least one element selected from the group consisting of Cu, Sn and Zn. 14. The friction liner according to claim 1 attached to a polymeric substrate. 15. The polymeric substrate material according to claim 14 selected from the group consisting of unfilled or filled epoxy, phenolic resins, melamine resins, polyester resins, urea resins; thermoplastic polymers including thermoplastic polyolefins (TPOs) including polyethylene (PE) and polypropylene (PP); polyamides, mineral filled polyamide resin composites; polyphthalamides, polyphtalates, polystyrene, polysulfone, polyimides; neoprenes; polybutadienes; polyisoprenes; butadiene-styrene copolymers; poly-ether-ether-ketone (PEEK); polycarbonates; polyesters; liquid crystal polymers such as partially crystalline aromatic polyesters based on p-hydroxybenzoic acid and related monomers; polycarbonates; acrylonitrile-butadiene-styrene (ABS); chlorinated polymers such polyvinyl chloride (PVC); and fluorinated polymers including polytetrafluoroethylene (PTFE). 16. The polymeric substrate material according to claim 14 containing at least one filler selected from the group consisting of metals, metal oxides; carbonates, silicates, mica, bentonite, pumice, carbides of B, Cr, Bi, Si, and W; carbon, carbon fibers, carbon nanotubes, diamond, graphite, graphite fibers; glass; glass fibers; fiberglass and metallized fibers. 17. The friction liner according to claim 1 attached to a metallic substrate. 18. The metallic substrate material according to claim 17 selected from the group consisting of steel, Cu, Al, Mg and Ti and alloys thereof. 19. A friction liner according to claim 1 comprising surface with at least a portion thereof having a surface microstructure to raise the contact angle for deionized water at room temperature in said surface portion to at least 90°. 20. A friction liner according to claim 1 mounted on a bicycle wheel wherein said friction liner is attached to a substrate selected from the group consisting of an Al-based substrate, a Cu based substrate, a Mg-based substrate, a Ti-based substrate and a carbon fiber composite based substrate. 21. A friction liner according to claim 20 mounted on a bicycle brake rotor.
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