CN2665381Y - Aluminium alloy engine cylinder block - Google Patents
Aluminium alloy engine cylinder block Download PDFInfo
- Publication number
- CN2665381Y CN2665381Y CN 03250171 CN03250171U CN2665381Y CN 2665381 Y CN2665381 Y CN 2665381Y CN 03250171 CN03250171 CN 03250171 CN 03250171 U CN03250171 U CN 03250171U CN 2665381 Y CN2665381 Y CN 2665381Y
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- China
- Prior art keywords
- layer
- cylinder barrel
- ceramic layer
- cylinder block
- cylinder
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- Expired - Fee Related
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Abstract
An aluminum alloy motor cylinder block comprises a cylinder body and a cylinder barrel. The inner wall of the cylinder barrel is structured in a compound layer which is an alumina microcrystalline ceramics layer that is integrated as one with an aluminum ground mass by the way of micro-arc oxidation. The thickness of the layer is between 10 Mum and 90 Mum. The layer is divided into an inside layer and an outside layer, wherein the inside layer is thicker with dense structure and the outside layer is thinner with millipores. The utility model is characterized in good lubricating property and lubricating oil storage. With high microhardness the utility model is very durable. In addition, the compound layer can well ensure the size precision of the cylinder barrel and has a good heat transmission property. In brief, the aluminum alloy motor cylinder block in the utility model needs low cost and services long.
Description
One, technical field
The utility model relates to motor, especially the structure of the inwall of the cylinder block cylinder barrel of the motor of aluminum alloy.
Two, background technique
Because the piston of motor is to do to-and-fro motion at a high speed in the cylinder barrel of its cylinder block.So, require the inwall of its cylinder barrel that excellent abrasion resistance energy and easily lubricated performance will be arranged.For the motor of aluminum alloy,, following two kinds of ways have been adopted at present for allowing the inwall of its cylinder barrel have this two kinds of performances.
A kind of way is the cast steel cylinder sleeve that its inwall has these two kinds of performances of corresponding position embedding in its cylinder block.The wear-resisting property of this cast steel inboard wall of cylinder liner makes its enhancing by a series of heat treatment steps; The easy greasy property of this cast steel inboard wall of cylinder liner makes its enhancing by " honing " operation.Yet described heat treatment step is complex process, cost height not only, and its final wear-resisting property does not still usually reach gratifying requirement; Though described honing processing has strengthened the easily lubricated performance of inboard wall of cylinder liner, the performance of its inwall storage lubricant oil is still bad.In addition, the heat-transfer effect of cast steel cylinder sleeve is also very different than aluminum alloy.Because this three aspect makes that the working life of described cast steel cylinder sleeve and even cylinder block is all too short.
Another kind of way is to electroplate one deck " hard chrome " composite bed in the inner wall of cylinder of cylinder block, promptly adopts the technology of " spongy chromium plating " to make this inner wall of cylinder increase one deck hard chrome.Compare with the cast steel cylinder sleeve, not only the wear resistance of this composite bed itself is much better, and the performance of storage lubricant oil also has raising clearly.But the electroplating time of this composite bed is long, manufacturing efficiency is low, and its dimensional accuracy is difficult to guarantee---the problem that solves its dimensional accuracy with accurately machined way is also relatively more difficult.Serious problem is to contain Cr VI in the plating bath of this electroplating technology, and environment is had bigger pollution.
Three, summary of the invention
The purpose of this utility model is to propose a kind of improved plan, and this scheme makes the inwall of cylinder barrel have better wear resistance and easy lubricity under the prerequisite that guarantees dimensional accuracy.
Realize the cylinder block, similar of a kind of aluminium alloy engine of described purpose improvement project, comprise indispensable structures such as cylinder block body and cylinder barrel to the cylinder block of general motor.The inwall of its cylinder barrel is the composite bed structure, and this composite bed is the alumina crystallites ceramic layer.This alumina crystallites ceramic layer is to make one deck composite bed that its " growth " come out (its implementation methods with process from pact) with the method for " differential arc oxidation " on the cylinder barrel inwall of alloy matrix aluminum---different with technology such as chrome-faced, " growth " of this composite bed is the what is called " interior growth " of permeating in body material, between the cylinder barrel inwall of consequently described alumina crystallites ceramic layer and alloy matrix aluminum one deck transition zone arranged.This transition zone is combined as a whole this alumina crystallites ceramic layer and alloy matrix aluminum securely just.This alumina crystallites ceramic layer roughly is divided into inside and outside two-layer (being that this two interlayer does not have obvious limit yet) again, its endothecium structure densification, and its skin is full of micropore; The thickness of fine and close internal layer is 2～3 times of outer layer thickness.
Compared with prior art, superiority of the present utility model is as follows.
1, compares the easier assurance of dimensional accuracy with hard chromium.Chrome-faced is that chromium (or evanohm) is being deposited " outgrowth " mode by the plating matrix surface.Like this, by the size of plating sample (or workpiece) bigger change is arranged with regard to making, and the easy control unlike machine flinishing of the thickness of this coating.So final dimensional accuracy also is difficult for guaranteeing.And " differential arc oxidation " mainly is " interior growth " mode, and the order of magnitude of the little by little outgrowth amount that begins to have is very little very little again, all within the scope of dimensional tolerances.So after the cylinder barrel outer wall surface grew the alumina crystallites ceramic layer, its dimensional accuracy still can be guaranteed.
2, with after Overheating Treatment, strengthen, increase hard cast steel cylinder sleeve and the inwall hard chromium is compared, the alumina crystallites ceramic layer of the inwall of the utility model cylinder barrel has higher micro-penetration hardness, and (check shows, its value reaches HV800～HV1500), so its wear-resisting property is greatly improved; The easy lubricity of this ceramic layer is also very good.
3, because described alumina crystallites ceramic layer is roughly to be divided into inside and outside two-layerly, thicker, the compact structure of its internal layer, its skin are thin and be full of micropore.Therefore, its outer surface also has the performance of extraordinary storage lubricant oil.
4, owing to there has not been a cast steel cylinder sleeve, so, there has not been the defective that influences the cylinder block heat dispersion brought because the cast steel cylinder sleeve is arranged yet.Like this, also improved the working life of cylinder block greatly.
5, implement do not had the Cr VI in the chrome-plated process in the manufacturing process of the present utility model, reduced pollution significantly environment.
Four, description of drawings
Fig. 1---the plan view of the utility model cylinder block
The A-A of Fig. 2---Fig. 1 is to sectional view
The partial enlarged drawing in the I zone of Fig. 3---Fig. 2
Five, embodiment
Embodiment:
The cylinder block of aluminum alloy (for example: ZL107, ZL101 etc.) motorcycle gasoline engine, it comprises indispensable structure such as cylinder block body 1 and cylinder barrel 2.Entire cylinder body (matrix that comprises cylinder barrel 2) is earlier by the fluid origin integral body of same aluminum alloy material.After the necessary fine finishing and pretreatment procedure, the method with differential arc oxidation allows the inwall of this cylinder barrel 2 grow the composite bed that is combined as a whole securely with its alloy matrix aluminum 4 again---alumina crystallites ceramic layer 3.It is the transition zone 5 (in accompanying drawing only with a solid line show) of one deck between them for one that alumina crystallites ceramic layer 3 and alloy matrix aluminum 4 are engaged securely.This alumina crystallites ceramic layer 3 is divided into inside and outside two-layer, its endothecium structure densification, its skin is full of micropore, the thickness of this densification internal layer approximately is that 2～3 times of outer layer thickness are (as saying in the scheme, this two interlayer does not have obvious limit, their difference so do not draw in the accompanying drawing, alumina crystallites ceramic layer 3 has promptly only drawn).
According to different needs, can be controlled at the total thickness of alumina crystallites ceramic layer 3 (being fine and close internal layer and the outer sum that is full of micropore) between 5 μ m～500 μ m; And take all factors into consideration performance and Economy, total thickness is advisable with 10 μ m～90 μ m preferably; Only total thickness value is got 50 μ m (its dense layer thickness is approximately 35 μ m), 60 μ m (its dense layer thickness is approximately 42 μ m) or 70 μ m (its dense layer thickness is approximately 50 μ m).
Alumina crystallites ceramic layer to above-mentioned three optimum total thickness value carries out hardness test and does wear test (the inwall size that is milled to cylinder barrel has just surpassed franchise): its micro-penetration hardness is all about HV1200.The wear test time all reached more than 600 hours.Considerably beyond chromed hardened requirement greater than 100 hours, equally also considerably beyond sodium rice electroplate greater than 200 hours requirement.
Claims (4)
1, a kind of aluminium alloy engine cylinder body, it comprises cylinder block body (1) and cylinder barrel structures such as (2), the inwall of its cylinder barrel (2) is the composite bed structure, it is characterized in that: the composite bed of described cylinder barrel (2) inwall is alumina crystallites ceramic layer (3), has one deck that they are engaged transition zone (5) into one securely between cylinder barrel (2) inwall of alumina crystallites ceramic layer (3) and alloy matrix aluminum (4).
2, aluminium alloy engine cylinder body according to claim 1, it is characterized in that: described alumina crystallites ceramic layer (3) is divided into inside and outside two-layer again, its endothecium structure is finer and close than outer, and its skin is covered with micropore, and the thickness of this densification internal layer is 2～3 times of outer layer thickness.
3, aluminium alloy engine cylinder body according to claim 1 and 2 is characterized in that: the total thickness of described alumina crystallites ceramic layer (3) is 5 μ m～500 μ m.
4, aluminium alloy engine cylinder body according to claim 3 is characterized in that: the total thickness of described alumina crystallites ceramic layer (3) is 10 μ m～90 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250171 CN2665381Y (en) | 2003-08-28 | 2003-08-28 | Aluminium alloy engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03250171 CN2665381Y (en) | 2003-08-28 | 2003-08-28 | Aluminium alloy engine cylinder block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665381Y true CN2665381Y (en) | 2004-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03250171 Expired - Fee Related CN2665381Y (en) | 2003-08-28 | 2003-08-28 | Aluminium alloy engine cylinder block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665381Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949337A (en) * | 2010-10-14 | 2011-01-19 | 营口华润有色金属制造有限公司 | Automobile engine cylinder body made of high silicon rare earth aluminum alloy |
| CN102978675A (en) * | 2012-12-03 | 2013-03-20 | 中联重科股份有限公司 | Concrete delivery cylinder and manufacturing method thereof, and pumping device comprising concrete delivery cylinder |
| CN103437896A (en) * | 2013-08-02 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Cylinder device and manufacturing method thereof |
| CN104384836A (en) * | 2014-09-23 | 2015-03-04 | 温岭市金港机械制造厂（普通合伙） | Inner surface treatment method for ceramic air cylinder of oilless compressor |
| CN107649658A (en) * | 2017-07-25 | 2018-02-02 | 中原内配集团安徽有限责任公司 | A kind of preparation technology of aluminium alloy type cylinder sleeve |
-
2003
- 2003-08-28 CN CN 03250171 patent/CN2665381Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949337A (en) * | 2010-10-14 | 2011-01-19 | 营口华润有色金属制造有限公司 | Automobile engine cylinder body made of high silicon rare earth aluminum alloy |
| CN102978675A (en) * | 2012-12-03 | 2013-03-20 | 中联重科股份有限公司 | Concrete delivery cylinder and manufacturing method thereof, and pumping device comprising concrete delivery cylinder |
| CN102978675B (en) * | 2012-12-03 | 2015-06-24 | 中联重科股份有限公司 | Concrete delivery cylinder and manufacturing method thereof, and pumping device comprising concrete delivery cylinder |
| CN103437896A (en) * | 2013-08-02 | 2013-12-11 | 浙江吉利汽车研究院有限公司 | Cylinder device and manufacturing method thereof |
| CN103437896B (en) * | 2013-08-02 | 2016-06-15 | 浙江吉利汽车研究院有限公司 | Air cylinder device and manufacture method thereof |
| CN104384836A (en) * | 2014-09-23 | 2015-03-04 | 温岭市金港机械制造厂（普通合伙） | Inner surface treatment method for ceramic air cylinder of oilless compressor |
| CN107649658A (en) * | 2017-07-25 | 2018-02-02 | 中原内配集团安徽有限责任公司 | A kind of preparation technology of aluminium alloy type cylinder sleeve |
| CN107649658B (en) * | 2017-07-25 | 2020-01-07 | 中原内配集团安徽有限责任公司 | Preparation process of aluminum alloy cylinder sleeve |
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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 |