CN2523971Y - Antifriction pistons - Google Patents
Antifriction pistons Download PDFInfo
- Publication number
- CN2523971Y CN2523971Y CN 02200588 CN02200588U CN2523971Y CN 2523971 Y CN2523971 Y CN 2523971Y CN 02200588 CN02200588 CN 02200588 CN 02200588 U CN02200588 U CN 02200588U CN 2523971 Y CN2523971 Y CN 2523971Y
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- CN
- China
- Prior art keywords
- piston
- utility
- model
- skirt section
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to an antifriction piston, comprising a skirt type main body. The utility model is characterized in that the skirt type main body is provided with a wearable polytetrafluoroethylene coat. The particular structure of the utility model is that a polytetrafluoroethylene coat is printed on the surface of the skirt type main body of the piston or on the surface base matrix of the skirt type main body. As the utility model utilizes the advantages of high self lubricity, relative small friction factor, stable chemical property and good high temperature resistance capability, the piston decreases the movement friction factor opposite to the cylinder, thereby increasing the durability of the piston, having better sticking resistance capability and having a function of reducing friction and pulling resistance capability, further increasing the useful time of the piston. Besides, the utility model has the advantages of easy production and low cost.
Description
Technical field
The utility model relates to the piston that a kind of internal-combustion engine is used.
Background technique
Piston is one of crucial quick-wear part that directly influences engine performance and working life.Its main failure mode of the skirt section of piston is a scuffing of cylinder bore, and this phenomenon is in the majority with the motion initial stage, and pull-cylinder phenomena also takes place the cold start-up under the cold snap easily besides, and its reason is to lack lubricant film between cylinder wall and the piston this moment.
Summary of the invention
The purpose of this utility model provides a kind of Antifriction pistons, and technical problem to be solved is to reduce the kinematic friction coefficient of piston with respect to cylinder, thereby improves the wear resistance of piston, makes it have anti-attrition and tension cylinder performance, and then improves the working life of piston.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of Antifriction pistons has the skirt section body, and its technological scheme is that described skirt section body has wear-resisting polytetrafluorethylecoatings coatings.
In the technique scheme, polytetrafluorethylecoatings coatings directly is compound on the surface of skirt section body, and polytetrafluorethylecoatings coatings can only be compound on the periphery of skirt section body; When the surface of skirt section body has phosphating coating or during through surface matrix layer that other physics, chemical method obtain, above-mentioned polytetrafluorethylecoatings coatings is compound on the surface matrix layer of skirt section body, and polytetrafluorethylecoatings coatings can only be compound on the surface matrix layer of periphery of skirt section body.Polytetrafluorethylecoatings coatings thickness is the 10-20 micron.
The utility model is on the surface of the skirt section of piston body, or on the surface matrix layer of its skirt section body coated polytetrafluorethylecoatings coatings.It has utilized the plurality of advantages of this antifriction material of teflon, as this antifriction material self lubricity height, friction factor is less relatively, and generally the friction factor with respect to metal is about 0.1, have outstanding surperficial incoherence, and chemical stability and heat-resisting quantity are good.Therefore, piston of the present utility model has reduced its kinematic friction coefficient with respect to cylinder, thereby has improved the wear resistance of piston, and block resistance is better, makes it have anti-attrition and tension cylinder performance, and then the working life of having improved piston; And it makes simple, and is with low cost.
Description of drawings
Fig. 1 is an embodiment's of the utility model structural representation (being compounded with polytetrafluorethylecoatings coatings on the surface of the skirt section body of piston).
Fig. 2 is another embodiment's of the utility model structural representation (being compounded with polytetrafluorethylecoatings coatings on the surface matrix layer of the skirt section body of piston).
Embodiment
As shown in Figure 1, an embodiment of the present utility model is that it has skirt section body 1, and compound (coated) has wear-resisting polytetrafluorethylecoatings coatings 2 on the surface of described skirt section body 1.Polytetrafluorethylecoatings coatings 2 is compound on the periphery of skirt section body 1, and its thickness is the 10-20 micron.The technology manufacturing step of the foregoing description is: 1. with piston pretreatment (degreasing degreasing); 2. washing; 3. go up anchor clamps; 4. sandblast; 5. spray teflon (temperature is a normal temperature, and coating composition is a teflon coating, sprays a time); 6. solidify (temperature is 280-300 ℃, and the time is 1-1.5 hour); 7. Checking of finished products.
As shown in Figure 2, another embodiment of the present utility model is that it has skirt section body 1, the surface matrix layer 3 that the surface of described skirt section body 1 has phosphating coating or obtains through other physics, chemical method, and this technology is a prior art.Compound (coated) has wear-resisting polytetrafluorethylecoatings coatings 2 on the described surface matrix layer 3.Polytetrafluorethylecoatings coatings 2 is compound on the surface matrix layer 3 of periphery of skirt section body 1, and its thickness is the 10-20 micron.The technology manufacturing step of the foregoing description is: 1. piston is deoiled (adopt the normal temperature degreaser, temperature is a normal temperature, and the time is 8-30 minute); 2. clean; 3. phosphatization (or oxidation); 4. spray teflon (temperature is a normal temperature, and coating composition is a teflon coating, sprays a time); 5. solidify (temperature is 280-300 ℃, and the time is 1-1.5 hour); 6. Checking of finished products.
Claims (6)
1, a kind of Antifriction pistons has skirt section body (1), it is characterized in that described skirt section body (1) has wear-resisting polytetrafluorethylecoatings coatings (2).
2, piston according to claim 1 is characterized in that above-mentioned polytetrafluorethylecoatings coatings (2) directly is compound on the surface of skirt section body (1).
3, piston according to claim 1 is characterized in that above-mentioned polytetrafluorethylecoatings coatings (2) is compound on the surface matrix layer (3) of skirt section body (1).
4, piston according to claim 2 is characterized in that above-mentioned polytetrafluorethylecoatings coatings (2) is compound on the periphery of skirt section body (1).
5, piston according to claim 3 is characterized in that above-mentioned polytetrafluorethylecoatings coatings (2) is compound on the surface matrix layer (3) of periphery of skirt section body.
6,, it is characterized in that above-mentioned polytetrafluorethylecoatings coatings (2) thickness is the 10-20 micron according to claim 1 or 2 or 3 or 4 or 5 described pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02200588 CN2523971Y (en) | 2002-01-17 | 2002-01-17 | Antifriction pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02200588 CN2523971Y (en) | 2002-01-17 | 2002-01-17 | Antifriction pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2523971Y true CN2523971Y (en) | 2002-12-04 |
Family
ID=33683741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02200588 Expired - Fee Related CN2523971Y (en) | 2002-01-17 | 2002-01-17 | Antifriction pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2523971Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949378A (en) * | 2010-09-17 | 2011-01-19 | 上海交通大学 | Labyrinth seal piston for G-M refrigerator |
| CN1967000B (en) * | 2005-11-14 | 2012-08-15 | 罗伯特·博世有限公司 | Valve for controlling fluid |
| CN106481478A (en) * | 2016-11-10 | 2017-03-08 | 无锡市明盛强力风机有限公司 | A kind of self-lubricating steam-cylinder piston |
| CN112041581A (en) * | 2018-04-24 | 2020-12-04 | 舍弗勒技术股份两合公司 | Piston-cylinder arrangement for a hydraulic clutch system |
-
2002
- 2002-01-17 CN CN 02200588 patent/CN2523971Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1967000B (en) * | 2005-11-14 | 2012-08-15 | 罗伯特·博世有限公司 | Valve for controlling fluid |
| CN101949378A (en) * | 2010-09-17 | 2011-01-19 | 上海交通大学 | Labyrinth seal piston for G-M refrigerator |
| CN106481478A (en) * | 2016-11-10 | 2017-03-08 | 无锡市明盛强力风机有限公司 | A kind of self-lubricating steam-cylinder piston |
| CN112041581A (en) * | 2018-04-24 | 2020-12-04 | 舍弗勒技术股份两合公司 | Piston-cylinder arrangement for a hydraulic clutch system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |