CN103572108A - Casting aluminum alloy for engine cylinder block - Google Patents
Casting aluminum alloy for engine cylinder block Download PDFInfo
- Publication number
- CN103572108A CN103572108A CN201310497531.1A CN201310497531A CN103572108A CN 103572108 A CN103572108 A CN 103572108A CN 201310497531 A CN201310497531 A CN 201310497531A CN 103572108 A CN103572108 A CN 103572108A
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- China
- Prior art keywords
- cylinder block
- engine cylinder
- aluminium alloy
- silicon
- aluminum alloy
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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.)
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a casting aluminum alloy for an engine cylinder block, which comprises the following components in percentage by weight: 21.2% of silicon, 2.64% of copper, 0.008% of calcium, 0.0012% of rare earth, 135ppm of phosphorus and the balance of aluminum. The Rockwell hardness of the engine cylinder block produced according to the technical scheme is 68.5, and the wear resistance and strength can satisfy the requirements for the cylinder block.
Description
Technical field
The invention belongs to field of aluminum alloys, specifically refer to a kind of engine cylinder block cast aluminium alloy
Background technology
For alleviating the weight of engine, trended towards making cylinder body with aluminium alloy.In view of cylinder body requires to have high strength and high-wearing feature, so the aluminium alloy that expectation contains a large amount of silicon can be used for making cylinder body.
The aluminium alloy that contains a large amount of silicon is difficult to casting, and institute is so that the batch production based on die casting becomes difficult.According to possible motor speed and possible engine working conditions, cylinder body meets higher wear resistance and requirement of strength possibly.
Summary of the invention
The object of the invention is to propose a kind of engine cylinder block cast aluminium alloy technical scheme, make to produce in batches have enough for the wear resistance of practical application and the cylinder body of intensity.
The present invention is achieved by the following technical solutions:
A cast aluminium alloy, its composition includes 21.2% silicon, 2.64% copper, 0.008% calcium, 0.0012% rare earth, the phosphorus of 135ppm and the aluminium of surplus by weight percentage.
Described rare earth is light rare earths.
In described aluminium alloy, also include 0.03% zirconium by weight percentage.
The invention has the beneficial effects as follows:
The engine cylinder block of producing by the technical program, its Rockwell hardness is 68.5, wear resistance and intensity are enough to reach the requirement of cylinder body.
Embodiment
Describe by the following examples technical scheme of the present invention in detail, should be understood that, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
A cast aluminium alloy, its composition includes 21.2% silicon, 2.64% copper, 0.008% calcium, 0.0012% rare earth, the phosphorus of 135ppm and the aluminium of surplus by weight percentage.
Described rare earth is light rare earths, by add a certain amount of rare earth in aluminium alloy, can improve the even of aluminium alloy crystalline phase tissue.
In described aluminium alloy, also include 0.03% zirconium by weight percentage.
By the aluminium alloy tangent plane of producing is observed, on its surface, include primary crystal silicon grain and Eutectic Silicon in Al-Si Cast Alloys grain.
When the aluminium alloy melting of the hypereutectic composition that contains a large amount of silicon, first the silicon crystal grain of crystallization is called primary crystal silicon grain; The silicon crystal grain of subsequent crystallisation is called Eutectic Silicon in Al-Si Cast Alloys grain.The median size of Eutectic Silicon in Al-Si Cast Alloys grain is less than the median size of primary crystal silicon grain.
Phosphorus in alloy can slow down the trend that silicon crystal grain becomes thick, thereby allows this silicon crystal grain to be dispersed in alloy.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification and replacement to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (3)
1. an engine cylinder block cast aluminium alloy, is characterized in that: its composition includes 21.2% silicon, 2.64% copper, 0.008% calcium, 0.0012% rare earth, the phosphorus of 135ppm and the aluminium of surplus by weight percentage.
2. engine cylinder block cast aluminium alloy according to claim 1, is characterized in that: described rare earth is light rare earths.
3. engine cylinder block cast aluminium alloy according to claim 1 and 2, is characterized in that: in described aluminium alloy, also include 0.03% zirconium by weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497531.1A CN103572108A (en) | 2013-10-21 | 2013-10-21 | Casting aluminum alloy for engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497531.1A CN103572108A (en) | 2013-10-21 | 2013-10-21 | Casting aluminum alloy for engine cylinder block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572108A true CN103572108A (en) | 2014-02-12 |
Family
ID=50044813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310497531.1A Pending CN103572108A (en) | 2013-10-21 | 2013-10-21 | Casting aluminum alloy for engine cylinder block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103572108A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000355722A (en) * | 1999-06-17 | 2000-12-26 | Nippon Light Metal Co Ltd | Al-Si DIECAST PRODUCT EXCELLENT IN AIRTIGHTNESS AND WEAR RESISTANCE, AND ITS MANUFACTURE |
| CN1788149A (en) * | 2004-02-27 | 2006-06-14 | 雅马哈发动机株式会社 | Engine component part and method for producing the same |
| CN101338395A (en) * | 2007-07-06 | 2009-01-07 | 日产自动车株式会社 | Casting aluminum alloy and internal combustion engine cylinder head |
-
2013
- 2013-10-21 CN CN201310497531.1A patent/CN103572108A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000355722A (en) * | 1999-06-17 | 2000-12-26 | Nippon Light Metal Co Ltd | Al-Si DIECAST PRODUCT EXCELLENT IN AIRTIGHTNESS AND WEAR RESISTANCE, AND ITS MANUFACTURE |
| CN1788149A (en) * | 2004-02-27 | 2006-06-14 | 雅马哈发动机株式会社 | Engine component part and method for producing the same |
| CN101338395A (en) * | 2007-07-06 | 2009-01-07 | 日产自动车株式会社 | Casting aluminum alloy and internal combustion engine cylinder head |
Non-Patent Citations (1)
| Title |
|---|
| 孙伟成等: "《稀土在铝合金中的行为》", 31 March 1992, 兵器工业出版社 * |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |