CN202867019U - Piston ring with nano ceramic coating - Google Patents
Piston ring with nano ceramic coating Download PDFInfo
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- CN202867019U CN202867019U CN201220433220.XU CN201220433220U CN202867019U CN 202867019 U CN202867019 U CN 202867019U CN 201220433220 U CN201220433220 U CN 201220433220U CN 202867019 U CN202867019 U CN 202867019U
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- piston ring
- nano ceramic
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- nickel
- ceramic coat
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston ring for an automobile engine, in particular to the piston ring with a nano ceramic coating. The piston ring comprises a piston ring metallic matrix, wherein the nano ceramic coating or a nano ceramic composite coating prepared by thermal spraying technology is arranged on the surface of the piston ring metallic matrix. The nano ceramic coating is formed by nanoscale alumina, titanium oxide, monox, zirconia, magnesium oxide, silicon carbide, tungsten carbide, chromium carbide or one or more mixtures of other ceramic materials, and the thickness of the coating is 100 microns to 1,000 microns. The nano ceramic composite coating is composed of a bonding course and the nano ceramic coating in an overlapped mode, the bonding course of the nano ceramic composite coating tightly contacts with the surface of the piston ring metallic matrix, the bonding course is formed by one or more micron order powder of metallic nickel, nickel aluminum and nickel-chromium in a mixing mode, and the thickness of the bonding course is 10 microns to 100 microns. The hardness of the piston ring can reach up to 1200-1800 Vickers hardness (HV), and furthermore, the piston ring with the nano ceramic coating possesses extremely high toughness, a firm combination can be formed together with the piston ring matrix, and falling-off is not easy to occur.
Description
Technical field:
The utility model relates to the preparation technology of piston for automobile engine ring, is specifically related to the preparation of piston ring surface coating.
Background technique:
Future Automobile Engine will be to high efficiency, high loading, reach at a high speed the future development of long-life, and this just has higher requirement to its durability and reliability.Be accompanied by the in short supply of petroleum resources, the degree of concern of the fuel economy of motor is also being improved constantly, countries in the world strengthening gradually, have been put into effect a series of more strict tail-gas laws to the protection consciousness of environment in succession simultaneously.Piston ring is as the critical component that directly affects motor operational safety and the economic feature of environmental protection, and the quality of its performance directly has influence on the overall performance of motor, therefore the piston ring surface treatment technology has been proposed more and more higher requirement.
In the prior art, the treatment technology of piston ring surface mainly contains: electrochromism, nitrogenize and plasma sprayed molybdenum.The electrodeposited chromium layers compact structure, decay resistance is good, and micro-penetration hardness can reach 700-1000HV, can obviously improve the wear resistance of piston ring, improves its working life.But the fragility of chromium coating is very big, is easy to cracked coming off, and can aggravate the wearing and tearing of cylinder, and its anti-scuffing of cylinder bore can be also relatively poor.In addition, consume energy greatly in the production process of electrochromism, and have very strong toxicity, can produce murder by poisoning to operator, also can be to environment.Piston ring nitriding treatment technology is subject to extensive concern with characteristics such as its process economics are reliable, environmentally friendly, is the main method that present piston ring surface is processed.Although nitriding process is simple to operate, the piston ring surface hardness after processing is not high, and alloying layer thickness is limited, can not satisfy the usage requirement of high power engine.The plasma spraying molybdenum coating piston ring has lower friction factor and higher hydrodynamiclubrication tendency, and when temperature raise, it is more obvious that this tendency becomes.Plasma sprayed molybdenum piston ring can also adapt to preferably the EGR (EGR) of motor and reduce the requirement of engine oil consumption.The shortcoming of its maximum is exactly that the hardness of molybdenum coating is lower, and its wear resistance is poorer than chromium coating, and when high temperature easy oxidative exfoliation; On the other hand, under the condition that lacks lubricant oil or deterioration of oil, friction factor and the wear rate of this coating are larger, tend to have influence on the normal use of piston ring.
The model utility content:
The purpose of this utility model is, for deficiency of the prior art, a kind of engine piston ring with the nano ceramic coat that is made of plasma spray technology is provided, utilizes its high abrasion, high resistance scuffing of cylinder bore performance and low coefficient of friction performance, reach the effect that reduces cost.
The technical solution of the utility model is as follows:
Piston ring with nano ceramic coat of the present utility model, comprise the piston ring metallic matrix, it is characterized in that, the surface of described piston ring metallic matrix is provided with nano ceramic coat or the nano ceramic composite coating by the plasma spray technology preparation, described nano ceramic coat is to be made of one or more the mixture in nano level aluminium oxide, titanium oxide, silica, zirconium oxide, magnesium oxide, silicon carbide, Tungsten carbite, chromium carbide or other stupalith, and the thickness of coating is the 100-1000 micron; Described nano ceramic composite coating is overlapped by binder course and nano ceramic coat, its binder course and piston ring metal base surface close contact, it is to be mixed by one or more the micron order powder in metallic nickel, nickel aluminium, the nickel chromium triangle to consist of, joint thickness is the 10-100 micron, and described nano ceramic coat covers on the binder course and close contact.
Piston ring with nano ceramic coat of the present utility model, described binder course and nano ceramic coat adopt the plasma spray technology preparation, refer to adopt the technology such as flame spraying, electric arc spraying, plasma spraying or HVAF.
Compare with conventional material, nano ceramic material has more excellent wear-resisting, corrosion resistant, resistance to high temperature.By plasma spray technology, nano ceramic material is sprayed on piston ring surface, form a kind of combination firmly, the working surface of excellent performance, all be significantly increased at aspects such as intensity, toughness, anticorrosive, wear-resisting, thermal fatigue resistances.The existing chromium plating of the hardness ratio of nano ceramic coat piston ring of the present utility model, nitrogenize higher, its hardness can reach 1200-1800HV.When having high hardness, nano ceramic coat also has high toughness, makes piston ring surface integral body when enough wear resistancies and corrosion resistance are arranged have preferably toughness and elasticity.Nanostructured Ceramic Coatings Prepared By Thermal Spraying can form firmly with the piston ring matrix and be combined, and is not easy to come off.Actual measurement shows that nano ceramic coat of the present utility model has very low friction factor, and is lower than the chromium coating, can significantly reduce the wearing and tearing with cylinder, its degree of wear simultaneously, also has splendid high temperature resistance and decay resistance than using current process for treating surface to reduce 20%-30%.
Description of drawings:
Fig. 1 is the schematic representation of a kind of mode of execution of the utility model.
Fig. 2 is the schematic representation of the another kind of mode of execution of the utility model.
Embodiment:
Embodiment 1Be provided with from the teeth outwards the piston ring of nano ceramic coat
Referring to Fig. 1, be provided with nano ceramic coat 3 on the surface of piston ring metallic matrix 1, the mixture that the raw material of this nano ceramic coat is comprised of nano level aluminium oxide, titanium oxide, silica, zirconium oxide, magnesium oxide.Raw material is all buied from market, and consumption respectively is 20%, and making particle diameter through mist projection granulating is that the composite powder of 40-100 micron is used for spraying.Use plasma spraying method to be sprayed onto on the piston ring surface, coating thickness is about 500 microns, the more machined finished product that obtains.
After tested, the performance parameter of the piston ring nano ceramic coat of present embodiment is: surface hardness: be higher than 1200 HV; Adhesive strength: be higher than 50MPa, with the matrix strong bonded; Porosity ratio: be lower than 7%, suitable hole can play the effect that keeps sea surface oil slick; Friction factor: less than 0.1.
Embodiment 2Be provided with from the teeth outwards the piston ring of nano ceramic coat and binder course
Referring to Fig. 2, on the surface of piston ring metallic matrix 1, use first first supersonic spray coating technology spraying binder course 2, raw materials used is the metallic nickel powder, joint thickness is 70 microns, this binder course and piston ring metal base surface close contact; Use supersonic spray coating technology spraying nano ceramic coat 3, two coating close contacts at binder course.Nano ceramic coat thickness is 500 microns, and the raw material of this nano ceramic coat is the alumina in Nano level buied of market, the mixture of titanium oxide powder, and consumption respectively is 50%.
After tested, the performance parameter of the piston ring nano ceramic coat of present embodiment is: surface hardness: be higher than 1500 HV; Adhesive strength: be higher than 80MPa; Porosity ratio: be lower than 3%; Friction factor: less than 0.1.Compare with embodiment 1, adhesive strength is significantly improved, and porosity ratio also decreases, and illustrates that the nano ceramic coat of present embodiment is finer and close, is combined more firm with matrix.
Claims (1)
1. piston ring with nano ceramic coat, comprise the piston ring metallic matrix, it is characterized in that, the surface of described piston ring metallic matrix is provided with nano ceramic coat or the nano ceramic composite coating by the plasma spray technology preparation, described nano ceramic coat is by a kind of composition the in nano level aluminium oxide, titanium oxide, silica, zirconium oxide, magnesium oxide, silicon carbide, Tungsten carbite, chromium carbide or other stupalith, and the thickness of coating is the 100-1000 micron; Described nano ceramic composite coating is overlapped by binder course and nano ceramic coat, its binder course and piston ring metal base surface close contact, it is to be made of a kind of micron order powder in metallic nickel, nickel aluminium, the nickel chromium triangle, joint thickness is the 10-100 micron, and described nano ceramic coat covers on the binder course and close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220433220.XU CN202867019U (en) | 2012-08-29 | 2012-08-29 | Piston ring with nano ceramic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220433220.XU CN202867019U (en) | 2012-08-29 | 2012-08-29 | Piston ring with nano ceramic coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867019U true CN202867019U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220433220.XU Expired - Lifetime CN202867019U (en) | 2012-08-29 | 2012-08-29 | Piston ring with nano ceramic coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN202867019U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696944A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor Ti-based nano-ceramic coating film wear-resistant piston ring |
| CN104047834A (en) * | 2014-07-03 | 2014-09-17 | 肇庆匹思通机械有限公司 | Piston ring for rolling piston compressor of air conditioner and preparation method thereof |
| CN104357790A (en) * | 2014-10-30 | 2015-02-18 | 安徽鼎恒再制造产业技术研究院有限公司 | WC-ZrO2 nano-coating and preparation method thereof |
| CN104864079A (en) * | 2015-04-30 | 2015-08-26 | 高旋 | Gearbox casing for automobile |
| CN106077662A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high temperature resistant composite coating piston ring for combustion engines |
| CN107304128A (en) * | 2016-04-18 | 2017-10-31 | 中科翔（天津）科技有限公司 | Nano aluminium oxide ceramic coating |
| CN107542594A (en) * | 2017-10-16 | 2018-01-05 | 湖南城市学院 | Internal-combustion engine piston ring and production method and piston-ring packing |
| CN107815680A (en) * | 2017-10-25 | 2018-03-20 | 成都科盛石油科技有限公司 | A kind of gear wheel intensifying method |
| CN110701646A (en) * | 2019-10-21 | 2020-01-17 | 苏州元易新材料科技有限公司 | Energy gathering ring for gas stove |
-
2012
- 2012-08-29 CN CN201220433220.XU patent/CN202867019U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696944A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Combined compressor Ti-based nano-ceramic coating film wear-resistant piston ring |
| CN103696944B (en) * | 2013-12-17 | 2016-02-17 | 成都展望能源机械有限公司 | Combined type compressor nm-class Ti-base ceramic plated film abrasion-proof piston ring |
| CN104047834A (en) * | 2014-07-03 | 2014-09-17 | 肇庆匹思通机械有限公司 | Piston ring for rolling piston compressor of air conditioner and preparation method thereof |
| CN104357790A (en) * | 2014-10-30 | 2015-02-18 | 安徽鼎恒再制造产业技术研究院有限公司 | WC-ZrO2 nano-coating and preparation method thereof |
| CN104864079A (en) * | 2015-04-30 | 2015-08-26 | 高旋 | Gearbox casing for automobile |
| CN104864079B (en) * | 2015-04-30 | 2017-10-24 | 嵊州市万智网络科技有限公司 | A kind of transmission case of automobile casing |
| CN107723490A (en) * | 2015-04-30 | 2018-02-23 | 高旋 | A kind of manufacture method of transmission case of automobile casing |
| CN107304128A (en) * | 2016-04-18 | 2017-10-31 | 中科翔（天津）科技有限公司 | Nano aluminium oxide ceramic coating |
| CN106077662A (en) * | 2016-07-29 | 2016-11-09 | 安庆市德奥特汽车零部件制造有限公司 | A kind of preparation method of high temperature resistant composite coating piston ring for combustion engines |
| CN107542594A (en) * | 2017-10-16 | 2018-01-05 | 湖南城市学院 | Internal-combustion engine piston ring and production method and piston-ring packing |
| CN107815680A (en) * | 2017-10-25 | 2018-03-20 | 成都科盛石油科技有限公司 | A kind of gear wheel intensifying method |
| CN110701646A (en) * | 2019-10-21 | 2020-01-17 | 苏州元易新材料科技有限公司 | Energy gathering ring for gas stove |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 241000 workshop 10, Torch Industrial Park, Wuhu hi tech Industrial Development Zone, Anhui Province Patentee after: Anhui Dingheng Industry Group Co.,Ltd. Address before: 241000 No. 11 workshop of small and medium-sized enterprise park, South Zone, hi tech Industrial Development Zone, Anhui, Wuhu Patentee before: WUHU DINGHENG MATERIAL TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |