CN106319297A - High-strength eutectic aluminum-silicon alloy and preparation method thereof - Google Patents
High-strength eutectic aluminum-silicon alloy and preparation method thereof Download PDFInfo
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- CN106319297A CN106319297A CN201610715819.5A CN201610715819A CN106319297A CN 106319297 A CN106319297 A CN 106319297A CN 201610715819 A CN201610715819 A CN 201610715819A CN 106319297 A CN106319297 A CN 106319297A
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- alloy
- cocrystallized
- high intensity
- silicon alloy
- weight percentage
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a high-strength eutectic aluminum-silicon alloy and a preparation method thereof. The high-strength eutectic aluminum-silicon alloy comprises, by weight, 3%-5% of Si, 1%-5% of Ti, 0.2%-0.5% of Mg, 0.2%-0.5% of Cu, 0.5%-0.7% of Fe, 0.1%-0.3% of Mn and the balance Al and inevitable impurities. On one hand, Si, Ti, Mg, Cu, Fe, Mn, Al and the like are mixed to form the raw material formula on the whole, and on the other hand, the titanium element of the specific content is added in the raw materials of the high-strength eutectic aluminum-silicon alloy; and in this way, the strength of the aluminum-silicon alloy can be improved, the tenacity of the aluminum-silicon alloy can be improved, and the service life of the aluminum-silicon alloy can be prolonged.
Description
Technical field
The invention belongs to metal material field, relate to a kind of alusil alloy, be specifically related to a kind of high intensity eutectic aluminum-silicon and close
Gold and preparation method thereof.
Background technology
Alusil alloy has little, its silicon in crystallization temperature interval and has the biggest latent heat of solidification and bigger specific heat capacity mutually；Linear shrinkage
The features such as coefficient, hot tearing and shrinkage porosite tendency are less, therefore its casting character is better than other aluminium alloy.Due to alusil alloy eutectic
There is good plasticity, can preferably take into account requirement of both mechanical property and casting character, so alusil alloy is at present should
Use most commonly used casting alloy, be widely used in fields such as Aero-Space, transportation, power communications.Along with
Electronic information, communication, the developing rapidly of automobile and other industries, consumption electronic product, LED illumination device, communication base station, zero, automobile
The oriented miniaturization such as part and the trend of high integration development, improve its intensity while ensureing heat radiation and service life become mesh
The key issue of front Related product design.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art to provide a kind of high intensity cocrystallized Al-Si alloy.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is: a kind of high intensity cocrystallized Al-Si alloy, it includes
The composition of following weight percentage:
Surplus is Al and inevitable impurity.
Optimally, it also includes the B that weight/mass percentage composition is 0.01～0.05%.
Further, it includes the composition of following weight percentage:
Surplus is Al and inevitable impurity.
Further, it includes the composition of following weight percentage:
Surplus is Al and inevitable impurity.
A further object of the present invention is to provide the preparation method of a kind of above-mentioned high intensity cocrystallized Al-Si alloy, it include with
Lower step:
A () weighs raw material by the weight percentage of each component；
(b) 860～900 DEG C, under conditions of noble gas, in smelting furnace, add described raw material carry out refine and formed molten
Melt liquid, stand 10～60min subsequently, remove scum silica frost；
C described fused solution is poured in mould by (), carry out cooling down cast molding with the speed of 50～100 DEG C/s；
D () carries out annealing 1～5 hour under conditions of described casting product is placed in 250～350 DEG C, subsequently with 2～5 DEG C/
The speed cooling room temperature of min.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that high intensity of the present invention is altogether
Brilliant alusil alloy, on the one hand uses Si, Ti, Mg, Cu, Fe, Mn, Al etc. to be mixed to form composition of raw materials, on the other hand on the whole
In its raw material, add the titanium elements of certain content, so can not only improve the intensity of alusil alloy, and can also be improved it
Toughness and service life.
Detailed description of the invention
The preferred embodiment of the invention will be described in detail below.
Embodiment 1
The present embodiment provides a kind of high intensity cocrystallized Al-Si alloy, and it includes the one-tenth of following weight percentage (wt%)
Point: 3%Si, 5%Ti, 0.5%Mg, 0.5%Cu, 0.5%Fe, 0.1%Mn, surplus is that (inevitable impurity element contains Al
Amount is less than 0.2wt%).
The preparation method of above-mentioned high intensity cocrystallized Al-Si alloy, it comprises the following steps:
A () weighs raw material by the weight percentage of each component (as Al selects industrial 99.7% fine aluminium, Si is then aluminum silicon
Intermediate alloy, selection raw material is the common knowledge of those skilled in the art)；
(b) 860 DEG C, under conditions of noble gas (He), in smelting furnace, add described raw material carry out refine and formed molten
Melt liquid, stand 10min subsequently, remove scum silica frost；
C described fused solution is poured in mould by (), carry out cooling down cast molding with the speed of 50 DEG C/s；
D () carries out annealing 5 hours under conditions of described casting product is placed in 250 DEG C, drop with the speed of 2 DEG C/min subsequently
Greenhouse temperature.
Embodiment 2
The present embodiment provides a kind of high intensity cocrystallized Al-Si alloy, and its composition is consistent with embodiment 1, except for the difference that its
Preparation method comprises the following steps:
A () weighs raw material by the weight percentage of each component (as Al selects industrial 99.7% fine aluminium, Si is then aluminum silicon
Intermediate alloy, selection raw material is the common knowledge of those skilled in the art)；
(b) 900 DEG C, under conditions of noble gas, in smelting furnace, add described raw material carry out refine and form fused solution,
Stand 60min subsequently, remove scum silica frost；
C described fused solution is poured in mould by (), carry out cooling down cast molding with the speed of 100 DEG C/s；
D () carries out annealing 1 hour under conditions of described casting product is placed in 350 DEG C, drop with the speed of 5 DEG C/min subsequently
Greenhouse temperature.
Embodiment 3
The present embodiment provides a kind of high intensity cocrystallized Al-Si alloy, and its composition is consistent with embodiment 1, except for the difference that its
Preparation method comprises the following steps:
A () weighs raw material by the weight percentage of each component；
(b) 880 DEG C, under conditions of noble gas, in smelting furnace, add described raw material carry out refine and form fused solution,
Stand 30min subsequently, remove scum silica frost；
C described fused solution is poured in mould by (), carry out cooling down cast molding with the speed of 60 DEG C/s；
D () carries out annealing 2 hours under conditions of described casting product is placed in 300 DEG C, drop with the speed of 3 DEG C/min subsequently
Greenhouse temperature.
The high intensity cocrystallized Al-Si alloy of table 1 embodiment 4 to embodiment 8 becomes to be grouped into (preparation method is with reference to embodiment 1)
High intensity cocrystallized Al-Si alloy in embodiment 1 to embodiment 8 is carried out performance test, and the results are shown in Table 2 for it.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not limit the scope of the invention with this.All according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within protection scope of the present invention.
Claims (5)
1. a high intensity cocrystallized Al-Si alloy, it is characterised in that it includes the composition of following weight percentage:
High intensity cocrystallized Al-Si alloy the most according to claim 1, it is characterised in that it also includes that weight/mass percentage composition is
0.01～the B of 0.05%.
High intensity cocrystallized Al-Si alloy the most according to claim 2, it is characterised in that it includes following weight percentage
Composition:
High intensity cocrystallized Al-Si alloy the most according to claim 2, it is characterised in that it includes following weight percentage
Composition:
5. the preparation method of arbitrary described high intensity cocrystallized Al-Si alloy in Claims 1-4, it is characterised in that it include with
Lower step:
A () weighs raw material by the weight percentage of each component；
(b) 860～900 DEG C, under conditions of noble gas, in smelting furnace, add described raw material carry out refine and formed melted
Liquid, stands 10～60min subsequently, removes scum silica frost；
C described fused solution is poured in mould by (), carry out cooling down cast molding with the speed of 50～100 DEG C/s；
D () carries out annealing 1～5 hour under conditions of described casting product is placed in 250～350 DEG C, subsequently with 2～5 DEG C/min
Speed cooling room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610715819.5A CN106319297B (en) | 2016-08-16 | 2016-08-16 | A kind of high intensity cocrystallized Al-Si alloy and preparation method thereof |
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| CN201610715819.5A CN106319297B (en) | 2016-08-16 | 2016-08-16 | A kind of high intensity cocrystallized Al-Si alloy and preparation method thereof |
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| CN106319297B CN106319297B (en) | 2018-11-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058855A (en) * | 2007-05-31 | 2007-10-24 | 中国铝业股份有限公司 | Microstructure thinning process for hypereutectic aluminum alloy |
| CN101456122A (en) * | 2008-12-15 | 2009-06-17 | 同济大学 | High-conductivity high silicon aluminum base alloy and manufacture method thereof |
| CN104630576A (en) * | 2014-12-29 | 2015-05-20 | 江苏中色锐毕利实业有限公司 | Hypoeutectic aluminum-silicon alloy with excellent thermal conductivity, preparation method and application thereof |
-
2016
- 2016-08-16 CN CN201610715819.5A patent/CN106319297B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058855A (en) * | 2007-05-31 | 2007-10-24 | 中国铝业股份有限公司 | Microstructure thinning process for hypereutectic aluminum alloy |
| CN101456122A (en) * | 2008-12-15 | 2009-06-17 | 同济大学 | High-conductivity high silicon aluminum base alloy and manufacture method thereof |
| CN104630576A (en) * | 2014-12-29 | 2015-05-20 | 江苏中色锐毕利实业有限公司 | Hypoeutectic aluminum-silicon alloy with excellent thermal conductivity, preparation method and application thereof |
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| CN106319297B (en) | 2018-11-27 |
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