CN201050596Y - Zirconium plating nitride piston ring - Google Patents
Zirconium plating nitride piston ring Download PDFInfo
- Publication number
- CN201050596Y CN201050596Y CNU200720047736XU CN200720047736U CN201050596Y CN 201050596 Y CN201050596 Y CN 201050596Y CN U200720047736X U CNU200720047736X U CN U200720047736XU CN 200720047736 U CN200720047736 U CN 200720047736U CN 201050596 Y CN201050596 Y CN 201050596Y
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- zirconium
- ring
- nitrogenize
- plating
- piston
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Abstract
The utility model discloses a zirconium nitride plated piston ring, which comprises a circular base body provided with an opening, at least one nitride circular layer arranged on the external circular surface of the circular base body, and at least a first zirconium based ceramic layer arranged on the external circular surface of the nitride circular layer, wherein, the zirconium nitride plated piston ring further comprises at least a second zirconium based ceramic layer which is arranged on the external circular surface of the first zirconium based ceramic layer and the hardness of which is lower than that of the first zirconium based ceramic layer. The zirconium nitride plated piston ring of the utility model has good abrasion and corrosion resistance and low friction coefficient; the plating combines firmly with the base body material, thereby improving the service lives of the piston ring and a cylinder bushing and bettering the overall performance of the motor.
Description
Technical field
The utility model relates to a kind of piston ring, relates in particular to a kind of composite bed piston ring of surface plating zirconium.
Background technique
Usually, piston-ring packing comprises top compression ring, second road compression ring and the combined oil ring.In engine structure, piston-ring packing is to use the harshest Component of condition, and it need carry out axial motion, radial motion and rotatablely move under the condition of High Temperature High Pressure.Therefore, material and the structure to piston ring proposed very high requirement at aspects such as wear resistance, store oil, hardness, corrosion resistance, toughness, elasticity, heat resistances.
Wherein, top compression ring directly contacts with the firing chamber, bearing outburst impact force greatly, and lubricating condition is the poorest again.Usually, the outer ring surface of top compression ring is made into the cylndrical surface, and this helps the formation of lubricant film.Wherein, the second road compression ring is scurried in order to control on the machine oil, generally all its outer ring surface is made the conical surface or top and is divided into conical surface bottom and is divided into cylinder, about 1 ° 30 ' ± 15 ' of its cone angle.The conical surface can plant oil film on the slip surface when piston stroking upward, can scrape off the unnecessary machine oil of casing wall lower end again when descent of piston effectively.Wherein, the oil ring assembly is made of last scraping blade, lining spring, following scraping blade.Upper and lower scraping blade can move respectively, even, also have good compliance for the relatively poor cylinder of roundness, and can be at annular groove keep airtight effect up and down between the both ends of the surface to machine oil.
For surface hardness and the wear resistance that increases piston ring, and reduce its friction factor, related domain common method is that the working surface to piston ring carries out chromium plating and handles.Chromium coating hardness height can be stored a spot of lubricant oil, to improve lubricating condition.A kind of chrome-base ceramic composite plating layer processing method and the piston ring thereof that are disclosed for 02148600.X number as Chinese patent, its process step is followed successively by: one, the piston ring of cut-off footpath 12-400 millimeter, in the tank liquor of chromic anhydride 150-350 grams per liter, sulfuric acid 1-4 grams per liter, trivalent chromium 2-10 grams per liter and proper catalyst AFC, under current density 40-100 peace/square decimeter condition, plate one deck hard chrome earlier, electroplating time 5-40 minute, thickness 10-50 micron; Two, adopt the materialization means to handle chromium layer reticulate pattern, making its density is that 40-200 bar/millimeter, the degree of depth are that 2-20 micron and width are the 0.1-5 micron; Three, ceramic particle is embedded in these reticulate patterns and fixing, these stupaliths are: two or more mixture of silicon nitride or silicon carbide or aluminium sesquioxide ceramic and these ceramics, and the particle size scope is the 0.05-10 micron; Four, in the tank liquor of chromic anhydride 150-350 grams per liter, sulfuric acid 1-4 grams per liter, trivalent chromium 2-10 grams per liter and proper catalyst AFC, plating one deck hard chrome under current density 40-100 peace/square decimeter condition, electroplating time is 2-5 minute, and the reticulate pattern that embeds ceramic particle is covered, seals; Five, iterative process step 1-4 circulates, and making the chromium layer thickness is the 0.05-0.40 millimeter.But, this piston ring complicated process of preparation, and along with the further reinforcement of vehicular engine, the operating temperature of piston-ring packing is also more and more higher, and chrome plated piston ring more and more is difficult to satisfy the requirement of motor bad working environments.
In order to adapt to the development of motor, the technology people of related domain has developed various ceramic composite plating layer piston rings, the coating of the hard composite nano ceramic film of a kind of surface utilization in engine piston ring that is disclosed for No. 200510095480.5 as Chinese patent application, it utilizes the processing technique (comprising vacuum evaporation, magnetron sputtering, ion beam sputtering, ion plating, liquid epitaxy, chemical beam epitaxy, molecular beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapor deposition and physical vapor deposition) of general deposit solid film to be realized.Wherein, prior to forming the intermetallic compounds film (as titanium nitride, hafnium nitride, titanium aluminide, Tungsten carbite, TiAlN, TiCN etc.) of several layers nanostructured on the substrate material, on the intermetallic compounds film, form several layers nano ceramics coating film (as titanium oxide, zirconium oxide, zirconium nitride, cobalt oxide, chromium oxide etc.) afterwards.But the piston ring with hard composite nano ceramic film coating that No. 200510095480.5 patent application disclosed can not realize that hardness and toughness are two high, thereby is difficult to obtain optimum performance.
Thereby, need provide the nitrogenize that a kind of wear resistance is good, friction factor is low, hardness is high, toughness is high to plate the zirconium piston ring to address the above problem.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of hardness and the two high nitrogenize plating of toughness zirconium piston ring.
A kind of technological scheme of the present utility model is: a kind of nitrogenize plating zirconium piston ring is provided, comprise that a ring-type matrix, that is provided with opening is arranged on the nitride circular layer on the external anchor ring of cyclic group at least and is arranged on the first zirconium base ceramic layer on the nitride circular layer outer ring surface at least, wherein, nitrogenize plating zirconium piston ring further comprise be arranged on the first zirconium base ceramic layer outer ring surface at least and hardness less than the second zirconium base ceramic layer of the first zirconium base ceramic layer.
So-called nitride circular layer is arranged on the external anchor ring of cyclic group at least, can be that the outer surface of ring-type matrix is equipped with nitride layer, that is, the upper surface of ring-type matrix, lower surface, inner ring surface, outer ring surface are equipped with nitride layer; Perhaps, also can be only to have the outer ring surface of ring-type matrix to be provided with nitride layer, and be the nitride circular layer.
The so-called first zirconium base ceramic layer is arranged on the nitride circular layer outer ring surface at least, can be all surface that the first zirconium base ceramic layer spreads all over nitrogenize plating zirconium piston ring, i.e. upper surface, lower surface, inner ring surface, the outer ring surface of nitrogenize plating zirconium piston ring be equipped with the first zirconium base ceramic layer; Perhaps, also can be only to have the outer ring surface of nitrogenize plating zirconium piston ring to be provided with the first zirconium base ceramic layer, and also be provided with the nitride circular layer between the outer ring surface of the first zirconium base ceramic layer and ring-type matrix, be the outer ring surface that the inner ring surface of nitride circular layer is incorporated into the ring-type matrix, the outer ring surface of nitride circular layer is incorporated into the first zirconium base ceramic layer.
Particularly, the total thickness of the first zirconium base ceramic layer and the second zirconium base ceramic layer is 2～10 microns.Preferably, the total thickness of the first zirconium base ceramic layer and the second zirconium base ceramic layer is 3～5 microns.
Alternatively, the inner ring surface of the first zirconium base ceramic layer and the thickness between the outer ring surface are 1～5 micron, and the inner ring surface of the second zirconium base ceramic layer and the thickness between the outer ring surface are 1～5 micron.
Particularly, the surface microhardness of nitrogenize plating zirconium piston ring is 2000～4000HV0.05, and friction factor is 0.005～0.050.Preferably, the surface microhardness of nitrogenize plating zirconium piston ring is 2700～3200HV0.05, and friction factor is 0.020～0.024.
Wherein, the inner ring surface of nitride circular layer and the thickness between the outer ring surface are 30～150 microns.Preferably, the inner ring surface of nitride circular layer and the thickness between the outer ring surface are 50～100 microns.
Wherein, the surface microhardness of nitride circular layer is 600～1500HV0.2, and friction factor is 0.080～0.100.Preferably, the surface microhardness of nitride circular layer is 900～1250HV0.2, and friction factor is 0.090～0.093.
Wherein, nitrogenize plating zirconium piston ring can in the piston-ring packing any one or a plurality of.
Alternatively, nitrogenize plating zirconium piston ring is the top compression ring in the piston-ring packing, and the outer ring surface of ring-type matrix is a cylinder.
Alternatively, nitrogenize plating zirconium piston ring is the second road compression ring in the piston-ring packing, and the outer ring surface of ring-type matrix is the conical surface.
Alternatively, nitrogenize plating zirconium piston ring is last scraping blade, the scraping blade or serve as a contrast spring down in the combined oil ring in the piston-ring packing.
Have multiple alloy zirconium phase in the zirconium layer film of nitrogenize of the present utility model plating zirconium piston ring, these mutually in random distribution many small crystal fine particles.Crystalline structure has certain self-lubricating function.In addition, these form a kind of network structure again between mutually, and this network structure can trapped fuel, helps to lubricate.Above advantage helps to reduce the friction factor in the motion, and then reduces fuel consume, reduces the wearing and tearing of piston ring and cylinder block, and can effectively reduce the vibration and the noise of motor.
The ring-type body material of nitrogenize plating zirconium piston ring of the present utility model can be high speed steel, spheroidal graphite cast iron, cast iron, stainless steel, special alloy, carbon steel, pure titanium, refractory alloy, non-ferrous alloy, copper etc.
Nitrogenize of the present utility model plating zirconium piston ring can be used on the piston of motor of various vehicles, boats and ships or lathe, can be petrol engine, diesel engine, natural gas engine, ethanol engine or mixed fuel engine.
The beneficial effects of the utility model are: at first, nitrogenize of the present utility model plating zirconium piston ring adopt be arranged on the first zirconium base ceramic layer outer ring surface and hardness less than the second zirconium base ceramic layer of the first zirconium base ceramic layer, make piston ring not only have good hardness performance but also have good toughness, thereby form a kind of functional material on the surface of piston ring with graded, improved the counter-bending ability of material, make this material not yielding, rupture or come off; Secondly, low, the coating of good, the good corrosion resistance of nitrogenize plating zirconium piston ring wear resistance of the present utility model, friction factor combines with body material that firmly (adhesive strength is more than or equal to 40N/mm
2), improved the overall performance of motor the working life of having improved piston ring and cylinder sleeve, energy-efficient, start soon, work is energetically; In addition, the preparation process environmental protection sanitary of nitrogenize of the present utility model plating zirconium piston ring can not cause environmental pollution, and along with the lifting of motor overall performance, the exhaust emissions performance also promotes significantly, has alleviated the pollution of tail gas to environment.
Below in conjunction with drawings and Examples; further specify the utility model; but the utility model is not limited to these embodiments, any on the utility model essence spirit improvement or substitute, still belong to scope required for protection in the utility model claims.
Description of drawings
Fig. 1 is the schematic representation of the utility model embodiment 1 nitrogenize plating zirconium piston ring.
Fig. 2 is the enlarged diagram of A-A line cross-sectional view among Fig. 1.
Embodiment
Embodiment 1
As shown in Figure 1 and Figure 2, nitrogenize of the present utility model plating zirconium piston ring is the top compression ring in the piston-ring packing, and it comprises that a ring-type matrix 10, that is provided with opening 12 is arranged on nitride circular layer 16 on ring-type matrix 10 outer ring surfaces, is arranged on the first zirconium base ceramic layer 17 on nitride circular layer 16 outer ring surfaces and is arranged on the second zirconium base ceramic layer 18 on the first zirconium base ceramic layer, 17 outer ring surfaces.
Wherein, the first zirconium base ceramic layer 17 and the second zirconium base ceramic layer 18 are the plasma physical vapor deposition technology preparations that utilize under the vacuum high-pressure electric field action, and the first higher zirconium base ceramic layer 17 of preparation hardness prepares the second lower zirconium base ceramic layer 18 of hardness then earlier.
Particularly, the outer ring surface of ring-type matrix 10 is a cylinder.The inner ring surface of the first zirconium base ceramic layer 17 and the thickness between the outer ring surface are about 2 microns, and the inner ring surface of the second zirconium base ceramic layer 18 and the thickness between the outer ring surface are about 1 micron.The surface microhardness of nitrogenize plating zirconium piston ring is about 3200HV0.05, and friction factor is about 0.024.
Particularly, the inner ring surface of nitride circular layer 16 and the thickness between the outer ring surface are 100 microns.The surface microhardness of nitride circular layer is 1250HV0.2, and friction factor is 0.093.
Embodiment 2
As another kind of mode of execution of the present utility model, other parts are identical with embodiment 1, and difference is:
Nitrogenize plating zirconium piston ring is the second road compression ring in the piston-ring packing, and it comprises that one is provided with the ring-type matrix of opening, and the outer ring surface of this ring-type matrix is the conical surface.
The inner ring surface of the first zirconium base ceramic layer and the thickness between the outer ring surface are about 3 microns, and the inner ring surface of the second zirconium base ceramic layer and the thickness between the outer ring surface are about 2 microns.The surface microhardness of nitrogenize plating zirconium piston ring is about 2700HV0.05, and friction factor is about 0.020.
The inner ring surface of nitride circular layer and the thickness between the outer ring surface are 50 microns.The surface microhardness of nitride circular layer is 900HV0.2, and friction factor is 0.090.
Embodiment 3
As another kind of mode of execution of the present utility model, other parts are identical with embodiment 1, and difference is:
Nitrogenize plating zirconium piston ring is the combined oil ring in the piston-ring packing, and it comprises scraping blade, lining spring, following scraping blade.Wherein, last scraping blade, lining spring and following scraping blade are equipped with nitride circular layer, the first zirconium base ceramic layer and the second zirconium base ceramic layer.
The inner ring surface of the first zirconium base ceramic layer and the thickness between the outer ring surface are about 5 microns, and the inner ring surface of the second zirconium base ceramic layer and the thickness between the outer ring surface are about 3 microns.The surface microhardness of nitrogenize plating zirconium piston ring is about 3000HV0.05, and friction factor is about 0.022.
The inner ring surface of nitride circular layer and the thickness between the outer ring surface are 80 microns.The surface microhardness of nitride circular layer is 1000HV0.2, and friction factor is 0.091.
Claims (10)
1. the zirconium piston ring is plated in a nitrogenize, comprise that a ring-type matrix, that is provided with opening is arranged on the nitride circular layer on the external anchor ring of described cyclic group at least and is arranged on the first zirconium base ceramic layer on the described nitride circular layer outer ring surface at least, it is characterized in that, described nitrogenize plating zirconium piston ring further comprise be arranged on the described first zirconium base ceramic layer outer ring surface at least and hardness less than the second zirconium base ceramic layer of the described first zirconium base ceramic layer.
2. nitrogenize plating zirconium piston ring as claimed in claim 1 is characterized in that the total thickness of described first zirconium base ceramic layer and the described second zirconium base ceramic layer is 2～10 microns.
3. nitrogenize plating zirconium piston ring as claimed in claim 2 is characterized in that the total thickness of described first zirconium base ceramic layer and the described second zirconium base ceramic layer is 3～5 microns.
4. nitrogenize plating zirconium piston ring as claimed in claim 2 is characterized in that the inner ring surface of the described first zirconium base ceramic layer and the thickness between the outer ring surface are 1～5 micron, and the inner ring surface of the described second zirconium base ceramic layer and the thickness between the outer ring surface are 1～5 micron.
5. nitrogenize plating zirconium piston ring as claimed in claim 1 is characterized in that the surface microhardness of described nitrogenize plating zirconium piston ring is 2000～4000HV0.05, and friction factor is 0.005～0.050.
6. nitrogenize plating zirconium piston ring as claimed in claim 1 is characterized in that the inner ring surface of described nitride circular layer and the thickness between the outer ring surface are 30～150 microns.
7. nitrogenize plating zirconium piston ring as claimed in claim 6 is characterized in that the inner ring surface of described nitride circular layer and the thickness between the outer ring surface are 50～100 microns.
8. as the described nitrogenize plating of one of claim 1～7 zirconium piston ring, it is characterized in that described nitrogenize plating zirconium piston ring is the top compression ring in the piston-ring packing, the outer ring surface of described ring-type matrix is a cylinder.
9. as the described nitrogenize plating of one of claim 1～7 zirconium piston ring, it is characterized in that described nitrogenize plating zirconium piston ring is the second road compression ring in the piston-ring packing, the outer ring surface of described ring-type matrix is the conical surface.
10. as the described nitrogenize of one of claim 1～7 plating zirconium piston ring, it is characterized in that described nitrogenize plating zirconium piston ring is last scraping blade, the scraping blade or serve as a contrast spring down in the combined oil ring in the piston-ring packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720047736XU CN201050596Y (en) | 2007-01-23 | 2007-01-23 | Zirconium plating nitride piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720047736XU CN201050596Y (en) | 2007-01-23 | 2007-01-23 | Zirconium plating nitride piston ring |
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| CN201050596Y true CN201050596Y (en) | 2008-04-23 |
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| CNU200720047736XU Expired - Fee Related CN201050596Y (en) | 2007-01-23 | 2007-01-23 | Zirconium plating nitride piston ring |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388933A (en) * | 2014-08-21 | 2015-03-04 | 肇庆匹思通机械有限公司 | Piston ring for heat insulation wear-resistant air-conditioning rolling piston compressor and preparation method of piston ring |
| CN108999717A (en) * | 2018-08-15 | 2018-12-14 | 全椒县全动机械有限公司 | A kind of diesel engine piston structure |
| CN110678675A (en) * | 2017-06-02 | 2020-01-10 | 马勒国际有限公司 | Piston ring and method of manufacturing the same |
| US11156291B2 (en) | 2017-06-02 | 2021-10-26 | Mahle International Gmbh | Piston ring and method of manufacture |
| US11162586B2 (en) | 2017-06-02 | 2021-11-02 | Mahle International Gmbh | Piston ring and method of manufacture |
-
2007
- 2007-01-23 CN CNU200720047736XU patent/CN201050596Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388933A (en) * | 2014-08-21 | 2015-03-04 | 肇庆匹思通机械有限公司 | Piston ring for heat insulation wear-resistant air-conditioning rolling piston compressor and preparation method of piston ring |
| CN110678675A (en) * | 2017-06-02 | 2020-01-10 | 马勒国际有限公司 | Piston ring and method of manufacturing the same |
| CN110678675B (en) * | 2017-06-02 | 2021-02-09 | 马勒国际有限公司 | Piston ring and method of manufacturing the same |
| US11047478B2 (en) | 2017-06-02 | 2021-06-29 | Mahle International Gmbh | Piston ring and method of manufacture |
| US11156291B2 (en) | 2017-06-02 | 2021-10-26 | Mahle International Gmbh | Piston ring and method of manufacture |
| US11162586B2 (en) | 2017-06-02 | 2021-11-02 | Mahle International Gmbh | Piston ring and method of manufacture |
| CN108999717A (en) * | 2018-08-15 | 2018-12-14 | 全椒县全动机械有限公司 | A kind of diesel engine piston structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20150123 |
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| EXPY | Termination of patent right or utility model |