CN206738019U - A kind of piston ring with taper face - Google Patents
A kind of piston ring with taper face Download PDFInfo
- Publication number
- CN206738019U CN206738019U CN201720321806.XU CN201720321806U CN206738019U CN 206738019 U CN206738019 U CN 206738019U CN 201720321806 U CN201720321806 U CN 201720321806U CN 206738019 U CN206738019 U CN 206738019U
- Authority
- CN
- China
- Prior art keywords
- piston ring
- film layer
- taper face
- diamond
- dlc film
- 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.)
- Active
Links
Abstract
A kind of piston ring with taper face, more particularly to a kind of cone-shaped piston ring applied in automobile engine are the utility model is related to, there is piston ring substrate；Piston ring substrate upper surface and/or lower surface are uniformly coated with phosphate coating, and piston ring substrate outer round surface is provided with diamond-like carbon film layer.The cylindrical upper use vacuum coating method of the utility model is coated with diamond-like carbon film layer (DLC film layer), and DLC film layer has extremely low frictional resistance, and piston ring surface coefficient of friction can be made to reduce the oil consumption for reducing engine；And DLC film layer grab oiliness can be fabulous, it is smaller to engine damage during cold start-up；In addition, DLC film layer has high hardness, up to 1600~2800HV, wearability is fabulous, can make the piston ring life-span up to 300,000 kilometers；The phosphate coating that upper and lower side is formed after phosphorating treatment can improve its wearability and lubricity, so as to extend the service life of piston ring.
Description
Technical field
It the utility model is related to a kind of piston ring, more particularly to a kind of cone-shaped piston ring applied in automobile engine.
Background technology
Reduce engine friction loss and engine friction research turn into alternate-engine develop main direction it
One.In order to meet following fuel oil consumption target and emission limit, except using supercharging technology, new combustion technology and variable ventilation skill
Outside art, the design of parts low friction also turns into the effective means for reducing fuel oil consumption.Carried out for the existing and friction of future products
Go deep into optimizing research, exploitation low friction engine has become the active demand of domestic and international Automobile Enterprises and research institution, started
Machine friction loss mainly includes piston connecting rod unit friction loss, valve mechanism friction loss, camshaft actuated is lost, bent axle (contains
Oil sealing) loss, the driving loss of machine oil pumping loss, frontal attachments etc.；Wherein Piston volume tube potentiality in terms of friction loss is reduced are huge
(its friction loss accounts for the 24% of mechanical loss total amount) greatly.
And common piston ring surface processing mode has chromium plating and sprayed molybdenum, but all there is certain limitation in these coatings
Property；Such as：Chromium coating coefficient of friction is big, and abrasion work(loss is big, easily attacks cylinder body, pull-cylinder phenomena occurs；Sprayed molybdenum coating hardness is inclined
Low, abrasive wear resistance is poor, not wear-resisting.Market generally reflect conventional surface processing piston ring often occur periphery and on
Phenomena such as inordinate wear of downside and scuffing of cylinder bore, can not meet the needs of Modern Engine development gradually.
Utility model content
The purpose of this utility model is the defects of overcoming prior art to exist, there is provided one kind disclosure satisfy that Modern Engine court
Higher rotating speed, more high life, more high torque, the direction development need of lower oil consumption and more low emission has high rigidity and height
Modulus of elasticity, low friction coefficient, the cone-shaped piston ring of wear-resistant and good vacuum tribological property.
Realizing the technical scheme of the utility model purpose is：A kind of piston ring with taper face, there is piston ring substrate；The piston
Ring base upper surface and/or lower surface are uniformly coated with phosphate coating, and the piston ring substrate outer round surface is provided with diamond-film-like
Layer.
Above-mentioned technical proposal, transition zone is additionally provided between the piston ring substrate surface and diamond-like carbon film layer.
Above-mentioned technical proposal, the transition zone are thin layers of chrome, and PVD processing is molded.
Above-mentioned technical proposal, the diamond-like carbon film layer thickness are 1~10 μm, and hardness is 1600~2800HV, and surface is thick
Rugosity≤Ra0.1.
Above-mentioned technical proposal, the thin layers of chrome thickness of intermediate layer are 1~8 μm, and hardness is more than or equal to 850HV.
Above-mentioned technical proposal, the diamond-like carbon film layer thickness are 3~7 μm.
Above-mentioned technical proposal, the intermediate layer thickness are 3~5 μm.
Above-mentioned technical proposal, diamond-like carbon film layer (3) the vacuum coating shaping.
Above-mentioned technical proposal, the piston ring section are trapezoidal, frustoconical bevel angle α；1.5°≤α≤ 3°.
After adopting the above technical scheme, the utility model has following positive effect：
(1) the cylindrical upper use vacuum coating method of the utility model is coated with diamond-like carbon film layer (DLC film layer), DLC film layer
With extremely low frictional resistance, piston ring surface coefficient of friction can be made to reduce the oil consumption for reducing engine；And DLC film layer grabs oiliness
Can be fabulous, it is smaller to engine damage during cold start-up；In addition, DLC film layer has high hardness, reachable 1600~2800HV,
Wearability is fabulous, can make the piston ring life-span up to 300,000 kilometers；The phosphate coating that upper and lower side is formed after phosphorating treatment can improve it
Wearability and lubricity, so as to extend the service life of piston ring；
(2) the thin layers of chrome of transition is additionally provided between the cylindrical DLC film layer of the utility model and piston ring substrate, transition zone hardness is
850HV, piston ring substrate hardness are 400~550HV, so as to make to form shallower hardness ladder between DLC film layer and matrix
Degree, the bond strength between film layer is improved, so as to extend the service life of piston ring；
(3) the utility model DLC film thickness degree is 1~10 μm, less than the wearability deficiency of 1 μm of film layer, more than 10 μm films
Ply stress is big, and fragility is also big, easily comes off, and is unfavorable for the raising of film layer wearability on the contrary；Preferably 3~7 μm of DLC film thickness degree；
(4) 1~8 μm of the utility model intermediate layer thickness, the combination that matrix and DLC film layer can be influenceed less than 1 μm are strong
Degree, because the hardness of transition layers of chrome is relatively low；The raising for being unfavorable for film layer wearability more than 8 μm, preferably 3~5 μm.
(5) the utility model piston ring is taper-face ring, preferably 1.5 °~3 ° of frustoconical bevel angle, can improve the sealing of piston ring
Energy.
Brief description of the drawings
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail to the utility model, wherein
Fig. 1 is the utility model top view；
Fig. 2 is the utility model front view；
Fig. 3 is the front view part A partial enlarged drawing of the utility model embodiment 1；
Fig. 4 is the front view part A partial enlarged drawing of the utility model embodiment 2；
1, piston ring substrate in figure；2nd, phosphate coating；3rd, diamond-like carbon film layer；4th, transition zone.
Embodiment
(embodiment 1)
The present embodiment piston ring with taper face preparation method is as follows：
1. being rolled by circle silk, continuous heat, monolithic ellipse is around piston ring routine preliminary working such as circles；
2. the upper and lower side of piston ring is processed by flat surface grinding technique；
3. the periphery of piston ring is processed by honing technique；
4. pair piston ring carries out cleaning by degreasing drying；
5. piston ring binder is got up using frock；
6. loading DLC stoves, vacuum coating processing, handling process time are carried out：5-6 hours；Treatment temperature：100-200 degree；
7. periphery honing finishes；
8. upper and lower side grinding finishing；
9. the upper and lower side of pair piston ring carries out phosphorating treatment, handling process time:3-5 minutes, treatment temperature：80-90
Degree.
Rear cone piston ring complete as shown in FIG. 1 to 3, the utility model piston ring with taper face, there is piston ring group
Body 1；The upper surface of piston ring substrate 1 and/or lower surface are uniformly coated with phosphate coating 2, and the outer round surface of piston ring substrate 1 is provided with
Diamond-like carbon film layer 3.The thickness of diamond-like carbon film layer 3 is 1~10 μm, and preferably 3~7 μm, hardness is 1600~2800HV, surface
Roughness≤Ra0.1.
The utility model piston ring section is trapezoidal, frustoconical bevel angle α；1.5°≤α≤3°.
(embodiment 2)
The present embodiment piston ring with taper face preparation method is as follows：
1. being rolled by circle silk, continuous heat, monolithic ellipse is around piston ring routine preliminary working such as circles；
2. the upper and lower side of piston ring is processed by flat surface grinding technique；
3. the periphery of piston ring is processed by honing technique；
4. cleaning by degreasing is carried out to the surface of piston ring using trichloro ethylene；
5. piston ring binder is got up to carry out blasting treatment again using frock；
6. cylindrical plating PVD processing:Hour processing time 7-8, treatment temperature:300-400 degree；
7. the periphery of piston ring is processed by honing technique；
8. pair piston ring carries out cleaning by degreasing drying；
9. piston ring refilled using frock pick up come；
10. loading DLC stoves, vacuum coating processing, handling process time are carried out:5-6 hours, treatment temperature:100-200
Degree；
11. periphery honing finishes；
12. upper and lower side grinding finishing；
13. the upper and lower side of pair piston ring carries out phosphorating treatment, handling process time:3-5 minutes, treatment temperature:80-90
Degree；
See Fig. 4, cylindrical plating PVD processing is added again before DLC stoves carry out vacuum coating treatment process in this implementation, from
And can make to add one layer of transition zone 4 between piston ring substrate 1 and DLC film layer 3, the transition zone is thin layers of chrome, thickness be for
1~8 μm, preferably 3~5 μm, hardness are more than or equal to 850HV, and the increase of transition zone 4 simultaneously forms composite film in DLC film layer, from
And the bond strength of outer surface DLC film layer 3 can be improved, and shallower hardness gradient is formed between piston ring substrate 1, improve
The impact resistance of composite film, extend the service life of piston ring.
DLC film layer reduces piston ring surface coefficient of friction, coefficient of friction ＜ 0.1, reduces engine consumption, fuel-efficient；DLC
Film layer grabs oiliness can be fabulous, and damage during cold start-up to engine is smaller, it is ensured that in the case where extremely lacking lubrication and cold
Engine works well during startup；DLC film layer is never wornout, and the piston ring life-span can reach 300,000 kilometers.High rigidity and ultralow
Frictional behavior is to strengthen the unique advantage with the DLC film material of lubricating oil function and structure integration, micron, the carbon of submicron order
Base solid lubrication abrasive dust fills reparation attachment film forming in engine friction secondary surface with fluid lubrication oil, forms existing stream
Body lubrication has the compound lubricating film of solid lubrication again.This compound lubricating film substantially increases the bearing capacity of oil film, adds
The air-tightness of engine, the lubricity of surface of friction pair is improved, reduce the vibration of mechanical friction, while saved,
Environmental protection, antifriction, the multiple effect of synergy.Adapted to modern reinforcing stimulus high power, low oil consumption, low emission it is various technical
It can require, can be in large-scale application.
The formation basic theory of the utility model DLC film layer is：Vacuum chamber, pre- heated work pieces, bombardment cleaning are treated first
After plating surface, ignited electric arc by the arc ignitor in high vacuum, under the maintenance of power supply and the promotion in magnetic field, cathode arc exists
Target surface is moved about, and electric arc evaporates carbon target, the carbon of evaporation by high potential barrier before target, the lower ionization of cause effect effect on the scene be carbon from
Son；Magnetic filter pipe is set in front of cathode arc, using effect of the magnetic field to ion, changes the motion rail that carbon ion reaches matrix
Mark, only when the electric charge and just suitable size of particle, be possible to simultaneously be deposited into by magnetic field conduits, high velocity bombardment substrate
Film.The DLC film layer deposited by Magnetic filter vacuum cathode arc has high rigidity, low-friction coefficient, high elastic modulus, high tensile
Cylinder and good film-substrate cohesion.Diamond-like carbon film layer (DLC) is a kind of amorphous state film layer, and DLC film layer has low planted agent
The characteristics such as power, low surface roughness, high rigidity (adjustable), the anti-wear performance of superelevation and the excellent adhesive force with matrix, very
It is adapted as wear-resistant coating.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
Step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, it is all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements done etc., it all should wrap
It is contained within the scope of protection of the utility model.
Claims (9)
1. a kind of piston ring with taper face, there is piston ring substrate (1)；It is characterized in that：Piston ring substrate (1) upper surface and/
Or lower surface is uniformly coated with phosphate coating (2), piston ring substrate (1) outer round surface is provided with diamond-like carbon film layer (3).
2. piston ring with taper face according to claim 1, it is characterised in that：The piston ring substrate surface and diamond-film-like
Transition zone (4) is additionally provided between layer.
3. piston ring with taper face according to claim 2, it is characterised in that：The transition zone (4) is thin layers of chrome, PVD processing
Shaping.
4. piston ring with taper face according to claim 1, it is characterised in that：Diamond-like carbon film layer (3) thickness is 1~10
μm, surface roughness≤Ra0.1.
5. piston ring with taper face according to claim 3, it is characterised in that：The thin layers of chrome thickness of transition zone (4) is 1~8 μ
m。
6. piston ring with taper face according to claim 1, it is characterised in that：Diamond-like carbon film layer (3) thickness is 3~7 μ
m。
7. piston ring with taper face according to claim 3, it is characterised in that：Transition zone (4) thickness is 3~5 μm.
8. according to the piston ring with taper face described in any one of claim 1~7 claim, it is characterised in that：The DLC
Film layer (3) vacuum coating is molded.
9. according to the piston ring with taper face described in any one of claim 1~7 claim, it is characterised in that：The piston ring is cut
Face is trapezoidal, frustoconical bevel angle α；1.5°≤α≤3°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720321806.XU CN206738019U (en) | 2017-03-30 | 2017-03-30 | A kind of piston ring with taper face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720321806.XU CN206738019U (en) | 2017-03-30 | 2017-03-30 | A kind of piston ring with taper face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738019U true CN206738019U (en) | 2017-12-12 |
Family
ID=60559001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720321806.XU Active CN206738019U (en) | 2017-03-30 | 2017-03-30 | A kind of piston ring with taper face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973377A (en) * | 2019-05-15 | 2019-07-05 | 天津铭捷智能装备有限公司 | A kind of measurement gear pump suitable for coating conveying |
| CN113265618A (en) * | 2021-05-08 | 2021-08-17 | 仪征纳环科技有限公司 | Piston ring coating with excellent running-in performance and low friction coefficient and preparation method thereof |
-
2017
- 2017-03-30 CN CN201720321806.XU patent/CN206738019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973377A (en) * | 2019-05-15 | 2019-07-05 | 天津铭捷智能装备有限公司 | A kind of measurement gear pump suitable for coating conveying |
| CN113265618A (en) * | 2021-05-08 | 2021-08-17 | 仪征纳环科技有限公司 | Piston ring coating with excellent running-in performance and low friction coefficient and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103789725B (en) | Multilamellar multiple elements design hard PVD coating, piston ring and the preparation technology of a kind of piston ring surface | |
| CN107541694B (en) | A kind of preparation method of rotary packing ring surface lubrication wear-resisting coating | |
| JP5583207B2 (en) | Sliding member | |
| CN206738019U (en) | A kind of piston ring with taper face | |
| US20130133608A1 (en) | Cylinder liner of a reciprocating engine | |
| CN206872923U (en) | A kind of coating structure for improving piston face wearability | |
| CN109988994B (en) | Coating with wear-resistant antifriction effect, preparation method thereof and piston ring | |
| KR20130091053A (en) | Piston ring having nano multilayer | |
| CN105134788B (en) | A kind of composite rolling bearing with soft base and wearing coat | |
| CN106662246A (en) | Piston ring | |
| CN103225064A (en) | Preparation method of diamond-like coating piston ring | |
| CN108531844A (en) | A kind of preparation method of the resistance to high temperature oxidation and wear-resistant coating of rare earth oxide doping for the protection of H13 steel surfaces | |
| CN206617243U (en) | A kind of cylindrical doctor blade ring for being coated with composite coating | |
| CN101398122B (en) | Iron-chromium-boron-silicon/FeS composite solid lubrication thin film and method for making same | |
| CN206770201U (en) | Rotary compressor | |
| CN112921264A (en) | Preparation method of high-pressure plunger of amorphous self-lubricating coating | |
| CN113430480B (en) | Cr (chromium) 3 C 2 Enhanced NiCrMoW antifriction, wear-resistant and corrosion-resistant coating, preparation method and application thereof | |
| CN104847524B (en) | A kind of preparation method of PVD piston rings | |
| CN203782221U (en) | Multilayer multi-element composite hard PVD (physical vapor deposition) clad layer for surface of piston ring and piston ring | |
| CN102777281A (en) | Stacking composite coating piston ring and manufacturing method thereof | |
| CN202431391U (en) | Piston ring with solid lubrication coating | |
| CN202054882U (en) | Low-friction wear-resisting coating | |
| CN211549847U (en) | Improved engine cylinder | |
| CN202417732U (en) | Piston ring with non-stick coating | |
| CN113215537A (en) | Preparation method and application of protective coating for connecting rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |