CN103572105A - High-strength cast aluminum alloy - Google Patents
High-strength cast aluminum alloy Download PDFInfo
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- CN103572105A CN103572105A CN201310581911.3A CN201310581911A CN103572105A CN 103572105 A CN103572105 A CN 103572105A CN 201310581911 A CN201310581911 A CN 201310581911A CN 103572105 A CN103572105 A CN 103572105A
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- rare earth
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- cast aluminum
- strength cast
- aluminum alloy
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Abstract
The invention discloses a high-strength cast aluminum alloy used for high-strength structures of transportation industry of aviation, aerospace, marine navigation, high-speed trains and the like. The high-strength cast aluminum alloy comprises the following components in percentage by weight: 2.8%-3.2% of copper, 2.8%-3.2% of manganese, 0.1%-0.2% of titanium, 2.2%-2.9% of aluminum rare earth alloy, 0.1%-0.2% of zinc, 0.1% of strontium, 0.05% of tin, 1.4%-1.8% of boron and the balance of aluminum. The high-strength cast aluminum alloy has room-temperature tensile strength of 440-470 MPa and elongation rate of 5.8%-6.8% after aging treatment.
Description
Technical field
The invention belongs to a kind of aluminium alloy, specifically a kind of high strength cast aluminum alloys.
Background technology
Along with modern science and technology and industrial expansion, the transportations such as Aeronautics and Astronautics, navigation, bullet train are day by day urgent to the demand of high-strength structure material, requirement as far as possible weight reduction and cost under the prerequisite of proof strength, to improve carrying capacity and speed, high strength cast aluminum alloys becomes first-selection.
Summary of the invention
The object of the present invention is to provide a kind of high-strength cast aluminium alloy material, the technical solution used in the present invention is:
Its composition is by weight percentage: copper 2.8-3.2wt%, manganese 2.8-3.2wt%, titanium 0.1-0.2wt%, Al rare earth alloy 2.2-2.9wt%, zinc 0.1-0.2wt%, strontium 0.1wt%, tin 0.05wt%, boron 1.4-1.8wt%, surplus are aluminium.
Content of rare earth in described Al rare earth alloy is 20wt%.
Its manufacture method comprises the following steps:
(1) melting aluminum first;
In the time of (2) 760 ℃, add copper, zinc to melt, fusing time 10 minutes;
(3) add manganese, titanium, Al rare earth alloy, uniform stirring, melts 25 minutes, then adds strontium and tin, and uniform stirring melts 5 minutes;
(4) with hexachloroethane, carry out refining treatment, refining 20 minutes;
(5) be cooled to 700 ℃ before coming out of the stove, add boron to stir;
(6) cast, 300 ℃-360 ℃ of die temperatures;
(7) aluminum alloy casting of having cast carries out 150 ℃ of insulations ageing treatment of 10 hours.
High strength cast aluminum alloys provided by the invention, its room temperature tensile strength is 440-470MPa, elongation is 5.8-6.8%.
Embodiment
Embodiment 1
High strength cast aluminum alloys, its composition is by weight percentage: copper 2.8wt%, manganese 2.8wt%, titanium 0.2wt%, Al rare earth alloy 2.5wt%, zinc 0.2wt%, strontium 0.1wt%, tin 0.05wt%, boron 1.4wt%, surplus are aluminium.
Content of rare earth in described Al rare earth alloy is 20wt%.
Its manufacture method comprises the following steps:
(1) melting aluminum first;
In the time of (2) 760 ℃, add copper, zinc to melt, fusing time 10 minutes;
(3) add manganese, titanium, Al rare earth alloy, uniform stirring, melts 25 minutes, then adds strontium and tin, and uniform stirring melts 5 minutes;
(4) with hexachloroethane, carry out refining treatment, refining 20 minutes;
(5) be cooled to 700 ℃ before coming out of the stove, add boron to stir;
(6) cast, 300 ℃-360 ℃ of die temperatures;
(7) aluminum alloy casting of having cast carries out 150 ℃ of insulations ageing treatment of 10 hours.
Embodiment 2
High strength cast aluminum alloys, its composition is by weight percentage: copper 3.2wt%, manganese 3.2wt%, titanium 0.2wt%, Al rare earth alloy 2.9wt%, zinc 0.2wt%, strontium 0.1wt%, tin 0.05wt%, boron 1.8wt%, surplus are aluminium.
Content of rare earth in described Al rare earth alloy is 20wt%.
Its manufacture method comprises the following steps:
(1) melting aluminum first;
In the time of (2) 760 ℃, add copper, zinc to melt, fusing time 10 minutes;
(3) add manganese, titanium, Al rare earth alloy, uniform stirring, melts 25 minutes, then adds strontium and tin, and uniform stirring melts 5 minutes;
(4) with hexachloroethane, carry out refining treatment, refining 20 minutes;
(5) be cooled to 700 ℃ before coming out of the stove, add boron to stir;
(6) cast, 300 ℃-360 ℃ of die temperatures;
(7) aluminum alloy casting of having cast carries out 150 ℃ of insulations ageing treatment of 10 hours.
Claims (3)
1. high strength cast aluminum alloys, it is characterized in that: by weight percentage, copper 2.8-3.2wt%, manganese 2.8-3.2wt%, titanium 0.1-0.2wt%, Al rare earth alloy 2.2-2.9wt%, zinc 0.1-0.2wt%, strontium 0.1wt%, tin 0.05wt%, boron 1.4-1.8wt%, surplus are aluminium to its composition.
2. high strength cast aluminum alloys according to claim 1, is characterized in that, the content of rare earth in described Al rare earth alloy is 20wt%.
3. high strength cast aluminum alloys according to claim 1, is characterized in that, its manufacture method comprises the following steps:
(1) melting aluminum first;
In the time of (2) 760 ℃, add copper, zinc to melt, fusing time 10 minutes;
(3) add manganese, titanium, Al rare earth alloy, uniform stirring, melts 25 minutes, then adds strontium and tin, and uniform stirring melts 5 minutes;
(4) with hexachloroethane, carry out refining treatment, refining 20 minutes;
(5) be cooled to 700 ℃ before coming out of the stove, add boron to stir;
(6) cast, 300 ℃-360 ℃ of die temperatures;
(7) aluminum alloy casting of having cast carries out 150 ℃ of insulations ageing treatment of 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581911.3A CN103572105A (en) | 2013-11-20 | 2013-11-20 | High-strength cast aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581911.3A CN103572105A (en) | 2013-11-20 | 2013-11-20 | High-strength cast aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103572105A true CN103572105A (en) | 2014-02-12 |
Family
ID=50044810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310581911.3A Pending CN103572105A (en) | 2013-11-20 | 2013-11-20 | High-strength cast aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103572105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311566A (en) * | 2016-11-14 | 2017-01-11 | 安徽名杰净化科技有限公司 | Method for preparing air purifier aluminum alloy casing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5453244A (en) * | 1992-07-16 | 1995-09-26 | Daido Metal Company Ltd. | Aluminum alloy bearing |
| JP2001131670A (en) * | 1999-11-09 | 2001-05-15 | Kobe Steel Ltd | Al-Mg-Si BASE Al ALLOY SHEET EXCELLENT IN PRESS FORMABILITY |
| US20050199318A1 (en) * | 2003-06-24 | 2005-09-15 | Doty Herbert W. | Castable aluminum alloy |
| WO2011118358A1 (en) * | 2010-03-26 | 2011-09-29 | 大同メタル工業株式会社 | Aluminum alloy bearing |
| CN102206778A (en) * | 2010-03-30 | 2011-10-05 | 本田技研工业株式会社 | Aluminium die casting alloy used as vehicle material |
-
2013
- 2013-11-20 CN CN201310581911.3A patent/CN103572105A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5453244A (en) * | 1992-07-16 | 1995-09-26 | Daido Metal Company Ltd. | Aluminum alloy bearing |
| JP2001131670A (en) * | 1999-11-09 | 2001-05-15 | Kobe Steel Ltd | Al-Mg-Si BASE Al ALLOY SHEET EXCELLENT IN PRESS FORMABILITY |
| US20050199318A1 (en) * | 2003-06-24 | 2005-09-15 | Doty Herbert W. | Castable aluminum alloy |
| WO2011118358A1 (en) * | 2010-03-26 | 2011-09-29 | 大同メタル工業株式会社 | Aluminum alloy bearing |
| CN102206778A (en) * | 2010-03-30 | 2011-10-05 | 本田技研工业株式会社 | Aluminium die casting alloy used as vehicle material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311566A (en) * | 2016-11-14 | 2017-01-11 | 安徽名杰净化科技有限公司 | Method for preparing air purifier aluminum alloy casing |
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| 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 |