CN204804968U - Diamond particle - chromium composite plating piston ring - Google Patents
Diamond particle - chromium composite plating piston ring Download PDFInfo
- Publication number
- CN204804968U CN204804968U CN201520112387.XU CN201520112387U CN204804968U CN 204804968 U CN204804968 U CN 204804968U CN 201520112387 U CN201520112387 U CN 201520112387U CN 204804968 U CN204804968 U CN 204804968U
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- Prior art keywords
- piston ring
- chromium
- diamond particles
- diamond particle
- utility
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Abstract
The utility model discloses a diamond particle - chromium composite plating piston ring, chromium -plated layer on the outer disc of piston ring to form the reticulation structure on the chromium layer, and in the reticulation embedding diamond particle. The utility model discloses piston ring cladding material has had higher wearability and heat -resisting load nature, is applicable to new heavy engine requirements such as pressure boost, high heating load better.
Description
One, technical field:
The utility model relates to a kind of piston ring, is specifically related to a kind of diamond particles-chromium composite deposite piston ring.
two, background technique:
Along with fuel economy index and emission limit set require more and more higher, motor car engine more trends towards high pressure of explosion, high moment of torsion, the design of high heat load direction.The new work engines such as turbosupercharging, high-pressure common rail, EGR are by more employings and design, these new work engine ubiquities: fuel gas temperature is high, gaseous-pressure is large, heat carrying high.Because motor possesses these features, make the operating conditions of piston ring become harsher, the wear resistance of piston ring, anti-scuffing of cylinder bore energy and resistance to heat absorption ability will promote further.
In " application number 200820002171.8 (notification number: CN201162585Y) a kind of abrasion-proof piston ring " patent, previously disclosed a kind of abrasion-proof piston ring adapting to the output of Hyundai Motor height, maximum discharge restriction, high resistance to heat load.The inventive point of this patent is the Al by inlaying size 2 ~ 10 μm in layers of chrome
2o
3particle, its advantage: be further improved than pure chromium coating wear resistance, shortcoming: Al
2o
3particle hardness is generally at 2000 ~ 2500HV, and its wear resistance or limited, especially weares and teares still larger on high heat load, high pressure of explosion motor.
three, summary of the invention:
Technical problem to be solved in the utility model is to provide a kind of diamond particles-chromium composite deposite piston ring possessing more high-wear resistance.
For solving the problems of the technologies described above, the technological scheme that diamond particles of the present utility model-chromium composite deposite piston ring adopts is such: it comprises the chromium coating on piston ring substrate and matrix periphery, and on chromium coating, etch reticulate structure, and in reticulate pattern mosaic diamond particle.Described layers of chrome hardness: 800 ~ 1200HV, the reticulate pattern density of etching reticulate pattern: 40 ~ 120/mm
2, diamond particles hardness: 3000 ~ 5000HV, diamond particle sizes size: 0.05 ~ 5 μm, the content by area ratio diamond particles: 5 ~ 15%, whole thickness of multiple plating: 0.05 ~ 0.20mm.
The utility model have employed the duplex electroplated chromium of mosaic diamond particle in chromium coating, due to features such as diamond particles hardness are high, good, the hot load-carrying properties of wear resistance are good, and the heat-resisting load performance of coating is possessed better wear resistance and Geng Gao.By experimental test, the wear-resisting property of the utility model piston ring promotes more than 2.5 times than common coating piston ring, better meets the performance requirement of the novel high-power such as turbosupercharging, EGR, high moment of torsion, high load engine.
four, accompanying drawing illustrates:
Fig. 1 is schematic cross-section of the present utility model;
Fig. 2 is the surface structure figure of the utility model coating.
five, embodiment:
See Fig. 1, diamond particles of the present utility model-chromium composite deposite piston ring comprises piston ring substrate 1, and the composite deposite 2 of matrix 1 periphery.See Fig. 2, composite deposite 2 is made up of the reticulate structure 4 in layers of chrome 3 and layers of chrome 3 and the diamond particles 5 of inlaying in reticulate pattern.
The utility model adopts special electrochemical deposition mode.First electroplating one deck layers of chrome at the periphery of piston ring, then in layers of chrome, etch reticulate structure, finally diamond particles is being embedded in reticulate pattern, through repeatedly repeating, forming final diamond particles-chromium composite deposite.
Due to the utility model employing is electrochemical method, goes for any piston ring material, comprising: spheroidal graphite cast iron, alloy cast iron, steel material.
Claims (1)
1. diamond particles-chromium composite deposite piston ring, comprise piston ring substrate (1), layers of chrome (3) on periphery and the reticulate structure (4) in layers of chrome (3), and the diamond particles (5) embedded in reticulate pattern (4), its feature: the hardness range of layers of chrome (3): 800 ~ 1200HV, the reticulate pattern density of reticulate pattern (4): 40 ~ 120/mm
2the size of diamond particles (5): 0.05 ~ 5 μm, content by area ratio diamond particles (5): 5 ~ 15%, the hardness of diamond particles (5): 3000 ~ 5000HV, whole thickness of coating: 0.05 ~ 0.20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112387.XU CN204804968U (en) | 2015-02-14 | 2015-02-14 | Diamond particle - chromium composite plating piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520112387.XU CN204804968U (en) | 2015-02-14 | 2015-02-14 | Diamond particle - chromium composite plating piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804968U true CN204804968U (en) | 2015-11-25 |
Family
ID=54589806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520112387.XU Active CN204804968U (en) | 2015-02-14 | 2015-02-14 | Diamond particle - chromium composite plating piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204804968U (en) |
-
2015
- 2015-02-14 CN CN201520112387.XU patent/CN204804968U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |