CN2581703Y - Full aluminium alloy cylinder of engine - Google Patents
Full aluminium alloy cylinder of engine Download PDFInfo
- Publication number
- CN2581703Y CN2581703Y CN 02244792 CN02244792U CN2581703Y CN 2581703 Y CN2581703 Y CN 2581703Y CN 02244792 CN02244792 CN 02244792 CN 02244792 U CN02244792 U CN 02244792U CN 2581703 Y CN2581703 Y CN 2581703Y
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- aluminium alloy
- engine
- aluminum alloy
- coating
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- 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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- Electroplating Methods And Accessories (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a full aluminum alloy cylinder body for an engine with a new structure. An integral cylinder body is made from full aluminum alloy, and a cast iron cylinder sleeve is cancelled in the integral cylinder body. A nanometer composite electroplating layer is combined on the inner wall of a cylinder hole. The thickness of the nanometer composite electroplating layer is 10-50 um. The nanometer composite electroplating layer is combined into half bright nickel / compound nanometer nickel plating. In this way, the full aluminum alloy cylinder body for an engine with a new structure not only reserves the excellent advantage of heat dispersion performance of aluminum alloy, but also has enough abrasion resistance, abrasion reducing performance, antioxidation, and relatively lower production cost. The utility model is very suitable for being popularized and used.
Description
Technical field
The utility model relates to a kind of engine technology, specifically is a kind of motor all aluminium alloy cylinder body design.
Technical background
It is aluminium alloy cylinder 2 that traditional engine cylinder-body adopts the outside more, and inner dress Cast iron liner 1 is referring to Fig. 1, the effect of Cast iron liner is to improve wear resistance, increases the service life, but because the existence of Cast iron liner, make the heat dispersion variation of cylinder body, the engine temperature height influences engine performance.And all aluminium alloy cylinder body reduces engine temperature because it has good performance of heat dissipation, can solve because of the heavy problems that bring motor of heat load, overlaps the characteristic that cylinder body has many excellences, the extremely concern of production firm than cast iron.Yet because the aluminum alloy quality is softer, wear-resisting property is poor, and the life-span is short, can not actually use.Improve its wear resistance, increase the service life, existing solution has that hard chromium plating, ceramet are handled, little rotten oxidation processes, but all because of reasons such as complex process, cost height, make all aluminium alloy cylinder body use and popularization is restricted.Therefore design a kind of new structure all aluminium alloy cylinder body that can overcome above-mentioned shortcoming, become the focus that people pay close attention to.
Summary of the invention
The purpose of this utility model just is to design a kind of all aluminium alloy engine cylinder-body of new structure, make it both keep the advantage of aluminum alloy excellent radiation performance, make cylinder body have enough wear resistancies, anti-attrition and anti-oxidant again, cost of production is relatively low, very is beneficial to and promotes the use of.
Technology settling mode of the present utility model is such: motor adopts all aluminium alloy to be made into holistic cylinder body, cancellation Cast iron liner in the cylinder body, and inwall is combined with nano composite galvanized coating in the cylinder hole.This nano composite galvanized coating thickness is 10-50 μ m, and coating is combined as semi-bright nickel/composite Nano nickel plating.The utility model is the composite bed of metallic nickel and nanoparticle at the nano-deposit of the aluminium alloy cylinder inwall combination of integral body.Matrix nickel is cellular with the coating that nanocrystalline morphological crystal forms.Its aperture is below 200nm, and nanoparticle is uniformly distributed among these holes the formation reticular structure.These nanoparticles can (15-20 dust) be slided or roll in short distance, make coating have extremely strong anti-attrition performance and oil storage greasy property.Because nanoparticle (α-Al
2O
3) itself have the hardness of Naxas emery, but the metallic nickel main body still has the toughness of nickel, so composite bed integrates hard and pliability.Thus, aluminium alloy cylinder has possessed enough wear resistancies and oxidation resistance, can cancel original Cast iron liner fully, like this, both can give full play to the good heat dispersion of all aluminium alloy cylinder body, and reduce the motor temperature rise, reduce oil consumption, improve engine power, simultaneously reduce cost of production again, prolonged the working life of cylinder body, had fairly obvious competitive advantage compared with similar products.
Description of drawings
Fig. 1 is the structural drawing of the engine cylinder-body of existing band Cast iron liner;
Fig. 2 is the structural drawing of all aluminium alloy cylinder body of the utility model design.
Embodiment
Referring to Fig. 2, adopt all aluminium alloy material engine cylinder-body, no Cast iron liner in the cylinder body 2, cylinder body 2 blanks adopt metal mold gravity casting, low-pressure die casting or high pressure die casting, and hardness is HRA35-60.Carry out nano compound electroplating nickel at the cylinder hole of engine cylinder-body 2 inwall and handle, make and be combined with one deck nano composite galvanized coating 3 in it.This nano composite galvanized coating 3 is semi-bright nickel/nano combined nickel combination.Wherein in nano combined nickel coating even dispersion with α-Al
2O
3Nano combined particulate for principal crystalline phase.Thickness of coating is about 3-4 μ m.The residual thickness of coating combination is nano-composite plate.
The coating uniform and delicate that is obtained, coating have self-lubricating property and oil storage performance, thereby make coating have high wear resistance.Strenuous test 250h, wear extent is 8-15 μ m.Thickness of coating has good homogeneous, and the cylindricity after the plating of cylinder body cylinder hole inwall is not more than 6 μ m, and ovality is not more than 3 μ m.Coating and basal body binding force do not have peeling, obscission after strengthening 250h.Hardness is HV400-600.
Obtaining the total method of above-mentioned high abrasion nano compound electroplating nickel dam combination is: traditional dip galvanizing technique is adopted in pretreatment, its semi-bright nickel coating adopts tradition to electroplate semi-bright nickel technology, and its nano composite galvanized coating is the α-Al that adds 50-100g/l in conventional watt nickel electrolyte
2O
3The composite Nano slurry.The former grain size of disperse particle is less than 200nm in the slurry, it be a kind of in acid, alkali all stable α-Al
2O
3The crystalline state particle can not reunited in electroplating process medium-term and long-term maintenance dispersed state.It can be scattered among the coating equably with the sub-state of former crystal grain in electroplating process, is added with brightening agent simultaneously in plating bath, to guarantee the certain brightness and the hardness of coating.
Concrete process conditions are as follows:
NiSO
4·7H
2O 350-380g/l
H
3BO
3 40-45g/l
NaCl 10-15g/l
α-Al
2O
3Composite Nano slurry 50-100g/l
Auxiliary agent 15-20g/l
Brightening agent A 2ml/l
Brightening agent B 1ml/l
PH 3.5-4
Dk 4-5A/dm
2
t℃ 55-65
In the technology, anode adopts the pictograph anode, and in order to guarantee the uniformity of coating, the pictograph anode adopts the mode of titanium pipe nickel plating to prepare.Electrolytic solution adopts pressurized air to stir, to guarantee α-Al
2O
3Particle all suspends in plating bath.Newly join tank liquor and must be warming up to electroplating temperature stirring and low current electrolysis (1-2A/dm
2) 6h is with the slaking tank liquor.
Following example is a kind of concrete prescription and the process conditions of all aluminium alloy CG125 inboard wall of cylinder block being carried out nano compound electroplating:
NiSO
46H
2O, 370g/l; H
3BO
3, 45g/l; NaCl, 15g/l; CoSO
4, 17g/l; α-Al
2O
3Slurry, 80g/l; DN2300A, 2ml; DN2300B, 1ml; DN-01,0.1ml/l.
The nano-composite plate that is obtained is strengthened experiment through 250h, and its wear extent only is 5-6 μ m, and the combination force of coating and matrix after 300 ℃ of high temperature processing, is put into cold water immediately and do not had foaming, skin effect phenomenon, and its hardness is HV400-600.
Cylinder body is strengthened experiment, and experimental result is as follows:
| Project | The peak output reference point | Break-in 20h test | Strengthen the 60h test | Strengthen the 100h test | Strengthen the 200h test | |
| Power kw/r/min (enterprise's mark: 7.2) | Maximum | 8.01kw/ 8493r/m in | 8.72 | 9.13 | 8.67 | 8.31 |
| On average | 7.65 | 8.11 | 7.85 | 7.69 | ||
| Moment of torsion Nm/r/min | Maximum | 9.55 | 10.15 | 9.91 | 9.77 | |
| (enterprise's mark: 8.6) | On average | 9.4 0 | 9.96 | 9.67 | 9.50 | |
| Oil consumption g/kwh (enterprise's mark: 367) | Maximum | 297.9 | 278.1 | 287.6 | 270.3 | |
| On average | 286.5 | 287.3 | 296.9 | 289.5 |
By above data as can be seen, with the cylinder body of this structure, engine power, moment of torsion are greatly improved, its oil consumption then greatly descends.
Claims (3)
1. a motor all aluminium alloy cylinder body is characterized in that cylinder body (2) is an all aluminium alloy integral body, and cylinder hole inwall is combined with nano composite galvanized coating (3).
2. motor all aluminium alloy cylinder body according to claim 1 is characterized in that nano composite galvanized coating (3) thickness is 10-50 μ m.
3. motor all aluminium alloy cylinder body according to claim 1 is characterized in that nano composite galvanized coating (3) is combined as semi-bright nickel/composite Nano nickel plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244792 CN2581703Y (en) | 2002-11-15 | 2002-11-15 | Full aluminium alloy cylinder of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244792 CN2581703Y (en) | 2002-11-15 | 2002-11-15 | Full aluminium alloy cylinder of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581703Y true CN2581703Y (en) | 2003-10-22 |
Family
ID=33716586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02244792 Expired - Fee Related CN2581703Y (en) | 2002-11-15 | 2002-11-15 | Full aluminium alloy cylinder of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581703Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787933A (en) * | 2012-08-29 | 2012-11-21 | 芜湖鼎恒材料技术有限公司 | Air cylinder with nano alloy coating |
| CN101191443B (en) * | 2006-12-01 | 2013-07-10 | 富士重工业株式会社 | Cylinder block |
| CN105492748A (en) * | 2013-08-30 | 2016-04-13 | 日立工机株式会社 | Engine and engine work machine provided with same |
| CN106194474A (en) * | 2014-12-01 | 2016-12-07 | 现代自动车株式会社 | Use the aluminum one-piece cylinder electromotor of portion's central flow supply formula water jacket between cylinder holes |
| CN114934854A (en) * | 2022-06-01 | 2022-08-23 | 瑞安市三山机车部件有限公司 | High life unmanned aerial vehicle cylinder |
-
2002
- 2002-11-15 CN CN 02244792 patent/CN2581703Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191443B (en) * | 2006-12-01 | 2013-07-10 | 富士重工业株式会社 | Cylinder block |
| CN102787933A (en) * | 2012-08-29 | 2012-11-21 | 芜湖鼎恒材料技术有限公司 | Air cylinder with nano alloy coating |
| CN105492748A (en) * | 2013-08-30 | 2016-04-13 | 日立工机株式会社 | Engine and engine work machine provided with same |
| CN106194474A (en) * | 2014-12-01 | 2016-12-07 | 现代自动车株式会社 | Use the aluminum one-piece cylinder electromotor of portion's central flow supply formula water jacket between cylinder holes |
| CN114934854A (en) * | 2022-06-01 | 2022-08-23 | 瑞安市三山机车部件有限公司 | High life unmanned aerial vehicle cylinder |
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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 |