CN107587012A - A kind of lightweight casting Al Si Li alloy materials and preparation method thereof - Google Patents
A kind of lightweight casting Al Si Li alloy materials and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of lightweight casting Al Si Li alloy materials and preparation method thereof, and wherein alloy material is according to the chemical composition of percentage by weight：Si 2~7wt%, Li 1~5%, Mg 0.1~3wt%, Mn 0~0.5wt%, Ti 0~0.5wt%, Be 0~0.5wt%, Zr 0~0.5wt% of 0~0.5wt%, Cr, surplus is Al and impurity.Preparation method includes：According to the chemical composition dispensing of above-mentioned percentage by weight；Aluminium ingot heating is first melt into aluminum melt, the raw metal in addition to Li is then added and stirs；Add refining agent into aluminium alloy melt to be refined, refining terminates rear degassing processing and skimmed；Sequentially add coverture, Li raw materials, Sr alterants and AlTiB grain refiners to stir, stand cast molding after 5~25min；Casting is dissolved and Ageing Treatment, air is cooled to room temperature afterwards.
Description
Technical field
The invention belongs to metal material and metallurgical technology field, and in particular to a kind of lightweight casts Al-Si-Li alloy materials
And preparation method thereof.
Background technology
Al-Li alloys have that density is low, modulus of elasticity is high, specific strength and specific stiffness are high, fatigue behaviour is good and corrosion resistance
Can and many excellent combination properties such as good welding performance, be one kind with the fastest developing speed in aerospace material in recent years first
Enter light-alloy structure material, wide application prospect is shown in aerospace field.By very long evolution, the 3rd
Applied for Al-Li alloys in aircraft industry.The Al-Li alloys researched and developed at present mainly based on deforming alloy,
Research and development to high-strength light casting Al-Li alloys are fewer.Casting occupies critical role in aviation aircraft.To casting aluminium lithium
The research of alloy and casting is the new trend occurred in recent years in aluminium lithium alloy research field.Therefore, high-strength light casting is researched and developed
Development of the Al-Li alloys to aircraft industry is significant.
Casting character is the important performance indexes of casting alloy.The casting character for improving alloy is research and development novel casting alloy
Key.Al-Si alloys have excellent casting character, and have moderate strength, are widely applied in the industrial production.
Li is added in hypoeutectic Al-Si alloy, the modulus of elasticity of alloy can be improved while alloy density is reduced.Research shows,
1wt%Li is often added in aluminium alloy, alloy density can be made to reduce by 3%, and modulus of elasticity improves 6%, and also alloy is being dissolved
Worked well with timeliness after-hardening.Thus, it is expected that Al-Si-Li alloys can still keep the excellent casting character of Al-Si alloys,
The features such as having the low-density of Al-Li alloys, high elastic modulus, high specific strength and high specific stiffness concurrently again, has in aerospace field
Wide application prospect.
However, according to Al-Si-Li phasors, and research to Al-7wt%Si-xLi alloys shows, in Al-7wt%Si
Li is added in alloy and result in nascent Al2Li3Si2The formation of phase.And with the increase of Li contents, come into being Al2Li3Si2Phase transformation
Obtain thicker.Fig. 1 represents Al thick in a kind of Al-7wt%Si-2.5wt%Li alloys2Li3Si2 phases.It can affirm, this
The thick primary phase of kind will the serious mechanical property for damaging alloy, especially plasticity.This microstructure characteristic hinders Al-
The development of Si-Li systems alloy so that Al-Si-Li alloys lose application value.Therefore, it is thick even to eliminate these for refinement
Primary phase is the key of research and development casting Al-Si-Li alloys.
The content of the invention
The problem of existing for prior art, the present invention provide a kind of lightweight casting Al-Si-Li alloy materials and its preparation
Method, the lightweight casting Al-Si-Li alloy materials refine or even eliminated significantly thick nascent Al2Li3Si2Phase, both protected
The excellent casting character of Al-Si casting alloys and higher intensity have been held, has been had again lower by 3~10% than traditional Al-Si alloys
Density, the target of high-strength light is reached.The technical scheme is that：
One side, the present invention provides a kind of lightweight casting Al-Si-Li alloy materials, according to the change of percentage by weight
Learning composition is：Si 2~7wt%, Li 1~5%, Mg 0.1~3wt%, Mn 0~0.5wt%, Ti 0~0.5wt%, Be 0
~0.5wt%, Zr 0~0.5wt% of 0~0.5wt%, Cr, surplus is Al and impurity, wherein in the impurity：Impurity element
Fe≤0.3wt%；Other impurity element total content≤1.0wt%.
Al-Si-Li alloy materials are cast according to lightweight of the present invention, it is preferable that the tensile strength of the alloy material
For 245~350MPa, elongation percentage is 3.0~8.0%, and density is 2.4~2.6g/cm3。
Second aspect, the present invention provide a kind of preparation method of lightweight casting Al-Si-Li alloy materials, including following
Step：
According to the chemical composition dispensing of above-mentioned lightweight casting Al-Si-Li alloy material percentage by weights；
Aluminium ingot heating is first melt into aluminum melt, the raw metal in addition to Li is then added, stirs, obtains aluminium conjunction
Golden melt；
Add refining agent into aluminium alloy melt to be refined, refining terminates rear degassing processing and skimmed；
Coverture, Li raw materials, Sr alterants and AlTiB crystal grain refinements are sequentially added into the aluminium alloy melt after skimming
Agent, stir, stand cast molding after 5~25min；
Casting is dissolved and Ageing Treatment, air is cooled to room temperature afterwards.
Further, it is described that aluminium ingot heating is first melt into aluminum melt, in order to prevent Li element oxides, preferably melted in vacuum
Furnace heats melting in the closing space full of inert gas.
Further, the technological parameter of the solid solution and Ageing Treatment is：3~30h is incubated in 480~580 DEG C to be consolidated
Molten processing, quenching cooling, then it is incubated 3~30h at 120~220 DEG C and carries out Ageing Treatment.
Beneficial effects of the present invention are：Lightweight casting Al-Si-Li alloy materials provided by the invention and preparation method thereof,
It can significantly refine, or even eliminate thick nascent Al2Li3Si2Phase, the excellent casting character of alloy and higher was both maintained
Intensity, there is the density lower by 3~10% than traditional Al-Si alloys again.And alloying component is reasonable, the mesh of high-strength light is reached
Mark.
Brief description of the drawings
Fig. 1 is Al thick in a kind of Al-7wt%Si-2.5wt%Li alloys2Li3Si2Phase.
Fig. 2 is the as-cast structure figure of the Al-Si-Li alloy materials of the embodiment of the present invention 3.
Fig. 3 is the as-cast structure figure of the Al-Si-Li alloy materials of the embodiment of the present invention 4.
Embodiment
In the description of the invention, it is necessary to explanation, unreceipted actual conditions person in embodiment, according to normal condition or
The condition that manufacturer suggests is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is that can be obtained by commercially available purchase
Conventional products.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
The present invention is described in further details with reference to specific embodiment, it is described be explanation of the invention without
It is to limit.
Embodiment 1
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 7.0wt%, Li 1.2wt%, Mg 0.5wt%, Ti
0.12wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤0.3wt%；Other impurity element total contents
≤ 1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 1,
Table 1
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 66.1 |
| Si | 7.0 | Pure Si | 7 |
| Mg | 0.50 | Pure Mg | 0.5 |
| Ti | 0.12 | Al-10Ti intermediate alloys | 2.4 |
| Li | 1.2 | Al-5Li intermediate alloys | 24 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) aluminium ingot is added in smelting furnace by several times, heating is allowed to be completely melt, and is incubated at 700-800 DEG C, adds by several times
Enter pure Si, Al-10Ti intermediate alloy of preprepared and magnesium ingot, and stir, obtain aluminium alloy melt；
(3) add RJ-2 refining agents into aluminium alloy melt to be refined, refining is molten to refining using getter after terminating
Argon gas is passed through in body to handle and skim；
(4) sequentially added into the aluminium alloy melt after skimming coverture, Al-5Li alloy raw materials, Sr alterants and
AlTiB grain refiners, stir, and stand cast molding after 20min；Wherein coverture is that lithium chloride and lithium fluoride press quality
Mixture than 3: 1；
(5) casting is dissolved and Ageing Treatment, specific process parameter is：16h is incubated in 530 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 4h at 200 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 249MPa,
Elongation percentage is 3.9%.
By the Al-Si-Li alloy materials of the present embodiment compared with existing ZL101 cast aluminium alloy materials, according to country
Standard GB/T1173-2013 regulation, ZL101 cast aluminium alloy golds are under T6 states, tensile strength 225MPa, and elongation percentage is
1%.The alloy strength and plasticity of the present embodiment are improved.The density of the ZL101 samples of actual measurement is 2.68g/cm3, this reality
The density for applying an alloy is 2.57g/cm3, density reduces 4.1%.
Embodiment 2
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 6.0wt%, Li2.0wt%, Mg0.77wt%, Zr 0.12wt%,
Surplus is Al and impurity, wherein in the impurity：Impurity Fe≤0.3wt%；Other impurity element total contents≤
1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 2,
Table 2
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 76.03 |
| Si | 6.0 | Al-30Si alloys | 20.00 |
| Mg | 0.77 | Pure Mg | 0.77 |
| Zr | 0.12 | Al-10Zr alloys | 1.20 |
| Li | 2.0 | Pure Li | 2.00 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) aluminium ingot being fitted into vaccum sensitive stove, then vacuumized, be re-filled with argon gas, heating is allowed to be completely melt, and
It is incubated at 700-800 DEG C, adds Al-30Si alloys, Al-10Zr alloys and pure Mg raw metals in batches, stir, obtain
Aluminium alloy melt；
(3) coverture, pure Li raw materials, Sr alterants and AlTiB grain refiners are sequentially added into aluminium alloy melt, is stirred
Mix uniformly, stand cast molding after 20min；Wherein coverture is the mixture of lithium chloride and lithium fluoride in mass ratio 3: 1；
(4) casting is dissolved and Ageing Treatment, specific process parameter is：10h is incubated in 540 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 8h at 180 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 255MPa,
Elongation percentage is 4.1%, density 2.53g/cm3, density reduces 5.6% compared with than ZL101.
Embodiment 3
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 5.0wt%, Li 2.8wt%, Mg 1.24wt%, Ti
0.2wt%, Be0.05wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤0.3wt%；Other impurity
Element total content≤1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 3,
Table 3
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 75.63 |
| Si | 5.0 | Al-30Si alloys | 16.67 |
| Mg | 1.24 | Pure Mg | 1.24 |
| Ti | 0.2 | Al-10Ti alloys | 2.00 |
| Li | 2.8 | Pure Li | 2.80 |
| Be | 0.05 | Al-3Be alloys | 1.67 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) aluminium ingot is added in smelting furnace by several times, heating is allowed to be completely melt, and is incubated at 700-800 DEG C, in batches
Al-30Si alloys, Al-10Ti alloys, Al-3Be alloys and pure Mg raw metals are added, stirs, obtains aluminium alloy melt；
(3) add RJ-2 refining agents into aluminium alloy melt to be refined, refining is molten to refining using getter after terminating
Argon gas is passed through in body to handle and skim；
(4) coverture, pure Li raw materials, Sr alterants and AlTiB crystal grain are sequentially added into the aluminium alloy melt after skimming
Fining agent, stir, stand cast molding after 20min；Wherein coverture is the mixed of lithium chloride and lithium fluoride in mass ratio 3: 1
Compound；
(5) casting is dissolved and Ageing Treatment, specific process parameter is：26h is incubated in 520 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 24h at 150 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 265MPa,
Elongation percentage is 5.1%, density 2.50g/cm3, density reduces 6.7% compared with than ZL101.Fig. 2 gives the Al- of the present embodiment
The as-cast structure of Si-Li alloy materials, show thick Al2Li3Si2Mutually refine significantly.
Embodiment 4
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 3.25wt%, Li3.3wt%, Mg 1.5wt%, Cr
0.15wt%, Ti 0.2wt%, Be 0.05wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤
0.3wt%；Other impurity element total content≤1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 4,
Table 4
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 69.50 |
| Si | 3.25 | Al-30Si alloys | 10.83 |
| Mg | 1.50 | Pure Mg | 1.50 |
| Ti | 0.20 | Al-10Ti alloys | 2.00 |
| Li | 3.30 | Pure Li | 3.30 |
| Cr | 0.15 | Al-10Cr alloys | 1.50 |
| Be | 0.05 | Al-3Be alloys | 1.67 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) aluminium ingot is added in smelting furnace by several times, heating is allowed to be completely melt, and is incubated at 700-800 DEG C, in batches
Al-30Si alloys, Al-10Ti alloys, Al-10Cr alloys, Al-3Be alloys and pure Mg raw metals are added, stirs, obtains
To aluminium alloy melt；
(3) add RJ-2 refining agents into aluminium alloy melt to be refined, refining is molten to refining using getter after terminating
Argon gas is passed through in body to handle and skim；
(4) coverture, pure Li raw materials, Sr alterants and AlTiB crystal grain are sequentially added into the aluminium alloy melt after skimming
Fining agent, stir, stand cast molding after 20min；Wherein coverture is the mixed of lithium chloride and lithium fluoride in mass ratio 3: 1
Compound；
(5) casting is dissolved and Ageing Treatment, specific process parameter is：10h is incubated in 550 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 24h at 130 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 279MPa,
Elongation percentage is 4.7%, density 2.47g/cm3, density reduces 7.8% compared with than ZL101.Fig. 3 gives the Al- of the present embodiment
The as-cast structure of Si-Li alloy materials, show thick Al2Li3Si2Mutually substantially eliminate.
Embodiment 5
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 2.5wt%, Li 3.9wt%, Mg 2.0wt%, Mn
0.15wt%, Ti0.12wt%, Be 0.05wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤
0.3wt%；Other impurity element total content≤1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 5,
Table 5
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 81.40 |
| Si | 2.5 | Al-30Si intermediate alloys | 8.33 |
| Mg | 2.0 | Pure Mg | 2.00 |
| Ti | 0.12 | Al-10Ti intermediate alloys | 1.20 |
| Li | 3.9 | Pure Li | 3.90 |
| Mn | 0.15 | Al-10Mn intermediate alloys | 1.50 |
| Be | 0.05 | Al-3Be intermediate alloys | 1.67 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) aluminium ingot is added in smelting furnace by several times, heating is allowed to be completely melt, and is incubated at 700-800 DEG C, in batches
Add Al-30Si intermediate alloys, Al-10Ti intermediate alloys, Al-10Mn intermediate alloys, Al-3Be intermediate alloys and pure Mg metals
Raw material, stir, obtain aluminium alloy melt；
(3) add RJ-2 refining agents into aluminium alloy melt to be refined, refining is molten to refining using getter after terminating
Argon gas is passed through in body to handle and skim；
(4) coverture, pure Li raw materials, Sr alterants and AlTiB crystal grain are sequentially added into the aluminium alloy melt after skimming
Fining agent, stir, stand cast molding after 20min；Wherein coverture is the mixed of lithium chloride and lithium fluoride in mass ratio 3: 1
Compound；
(5) casting is dissolved and Ageing Treatment, specific process parameter is：10h is incubated in 550 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 24h at 130 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 275MPa,
Elongation percentage is 4.5%, density 2.45g/cm3, density reduces 8.6% compared with than ZL101.
Embodiment 6
A kind of lightweight casting Al-Si-Li alloy materials and preparation method thereof are present embodiments provided, the Al-Si-Li is closed
Golden material is according to the chemical composition of percentage by weight：Si 3.5wt%, Li 4.5wt%, Mg 3.0wt%, Mn
0.15wt%, Zr0.12wt%, Be 0.12wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤
0.3wt%；Other impurity element total content≤1.0wt%.
The present embodiment is drawn up for 100kg alloys, and the dispensing situation of each element is as shown in table 5,
Table 6
| Element | Percentage composition (wt%) | Addition element alloy | Alloy dosage (kg) |
| Al | Surplus | Aluminium ingot | 74.1 |
| Si | 3.5 | Al-30Si intermediate alloys | 11.7 |
| Li | 4.5 | Pure Li | 4.5 |
| Mg | 3.0 | Pure Mg | 3 |
| Zr | 0.12 | Al-10Zr intermediate alloys | 1.2 |
| Mn | 0.15 | Al-10Mn intermediate alloys | 1.5 |
| Be | 0.12 | Al-3Be intermediate alloys | 4 |
The preparation method of the Al-Si-Li alloy materials, comprises the following steps：
(1) the chemical composition dispensing of Al-Si-Li alloy material percentage by weights is cast according to above-mentioned lightweight；
(2) first aluminium ingot is fitted into the smelting furnace space of a closing, being then filled with argon gas heating to smelting furnace space makes
Be completely melt, heating-up temperature is 700~800 DEG C, adds Al-30Si intermediate alloys in batches, closes among pure Mg, Al-10Mn
Gold, Al-3Be intermediate alloys and Al-10Zr intermediate alloy raw materials, stir, obtain aluminium alloy melt；
(3) add RJ-2 refining agents into aluminium alloy melt to be refined, refining is molten to refining using getter after terminating
Argon gas is passed through in body to handle and skim；
(4) coverture, pure Li raw materials, Sr alterants and AlTiB crystal grain are sequentially added into the aluminium alloy melt after skimming
Fining agent, stir, stand cast molding after 20min；Wherein coverture is the mixed of lithium chloride and lithium fluoride in mass ratio 3: 1
Compound；
(5) casting is dissolved and Ageing Treatment, specific process parameter is：18h is incubated in 550 DEG C to carry out at solid solution
Reason, quenching cooling, then be incubated 15h at 170 DEG C and carry out Ageing Treatment, air is cooled to room temperature afterwards.
The Al-Si-Li alloy materials of the present embodiment are subjected to tensile property test, as a result for：Tensile strength is 261MPa,
Elongation percentage is 3.3%, density 2.42g/cm3, density reduces 9.7% compared with than ZL101.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (5)
1. a kind of lightweight casts Al-Si-Li alloy materials, it is characterised in that is according to the chemical composition of percentage by weight：Si 2
~7wt%, Li 1~5%, Mg 0.1~3wt%, Mn 0~0.5wt%, Ti 0~0.5wt%, Be 0~0.5wt%, Zr
0~0.5wt% of 0~0.5wt%, Cr, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤0.3wt%；Its
Its impurity element total content≤1.0wt%.
A kind of 2. lightweight casting Al-Si-Li alloy materials according to claim 1, it is characterised in that the alloy material
Tensile strength be 245~350MPa, elongation percentage is 3.0~8.0%, and density is 2.4~2.6g/cm3。
3. a kind of preparation method of lightweight casting Al-Si-Li alloy materials, it is characterised in that comprise the following steps：
According to the lightweight casting Al-Si-Li alloy material percentage by weights chemical composition be：Si 2~7wt%, Li 1~
5%, Mg 0.1~3wt%, Mn 0~0.5wt%, Ti 0~0.5wt%, Be 0~0.5wt%, Zr 0~0.5wt%, Cr
0~0.5wt%, surplus is Al and impurity, wherein in the impurity：Impurity Fe≤0.3wt%；Other impurity elements always contain
Amount≤1.0wt% carries out dispensing；
Aluminium ingot heating is first melt into aluminum melt, the raw metal in addition to Li is then added, stirs, obtain aluminium alloy and melt
Body；
Add refining agent into aluminium alloy melt to be refined, refining terminates rear degassing processing and skimmed；
Coverture, Li raw materials, Sr alterants and AlTiB grain refiners are sequentially added into the aluminium alloy melt after skimming, is stirred
Mix uniformly, stand cast molding after 5~25min；
Casting is dissolved and Ageing Treatment, air is cooled to room temperature afterwards.
A kind of 4. preparation method of lightweight casting Al-Si-Li alloy materials according to claim 3, it is characterised in that institute
State and aluminium ingot heating is first melt into aluminum melt, in order to prevent Li element oxides, preferably in vacuum melting furnace or full of inertia
Melting is heated in the closing space of gas.
A kind of 5. preparation method of lightweight casting Al-Si-Li alloy materials according to claim 3, it is characterised in that institute
State solid solution and the technological parameter of Ageing Treatment is：3~30h is incubated in 480~580 DEG C and carries out solution treatment, quenching cools down, then
3~30h, which is incubated, at 120~220 DEG C carries out Ageing Treatment.
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| WO2019161137A1 (en) * | 2018-02-14 | 2019-08-22 | Arconic Inc. | Aluminum alloy products and methods for producing the same |
| CN111074114A (en) * | 2020-01-03 | 2020-04-28 | 北京科技大学 | Al-Si-Mg-Li series aluminum alloy and preparation method thereof |
| CN111893335A (en) * | 2020-08-05 | 2020-11-06 | 郑州轻研合金科技有限公司 | Method for regenerating and recycling scrap of aluminum-lithium alloy waste |
| CN114807690A (en) * | 2022-04-27 | 2022-07-29 | 山东裕航特种合金装备有限公司 | Plastic aluminum lithium alloy and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804423A (en) * | 1985-06-28 | 1989-02-14 | Cegedur Societe De Transformation De L'aluminium Pechiney | Al alloys having high proportions of Li and Si and a process for production thereof |
| CN1444515A (en) * | 2000-07-26 | 2003-09-24 | 克里斯铝轧制品有限公司 | Nickel-plated brazing sheet product |
| US20100139815A1 (en) * | 2008-12-09 | 2010-06-10 | United Technologies Corporation | Conversion Process for heat treatable L12 aluminum aloys |
| US20110064599A1 (en) * | 2009-09-15 | 2011-03-17 | United Technologies Corporation | Direct extrusion of shapes with l12 aluminum alloys |
| CN102089117A (en) * | 2008-07-02 | 2011-06-08 | 阿勒里斯铝业科布伦茨有限公司 | Aluminium brazing sheet material |
| CN106086488A (en) * | 2016-07-15 | 2016-11-09 | 南南铝业股份有限公司 | Subway station furred ceiling aluminium alloy and preparation method thereof |
| JP2017110266A (en) * | 2015-12-17 | 2017-06-22 | 株式会社神戸製鋼所 | Aluminum alloy-made brazing sheet excellent strength after brazing |
-
2017
- 2017-09-26 CN CN201710880706.5A patent/CN107587012B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804423A (en) * | 1985-06-28 | 1989-02-14 | Cegedur Societe De Transformation De L'aluminium Pechiney | Al alloys having high proportions of Li and Si and a process for production thereof |
| CN1444515A (en) * | 2000-07-26 | 2003-09-24 | 克里斯铝轧制品有限公司 | Nickel-plated brazing sheet product |
| CN102089117A (en) * | 2008-07-02 | 2011-06-08 | 阿勒里斯铝业科布伦茨有限公司 | Aluminium brazing sheet material |
| US20100139815A1 (en) * | 2008-12-09 | 2010-06-10 | United Technologies Corporation | Conversion Process for heat treatable L12 aluminum aloys |
| US20110064599A1 (en) * | 2009-09-15 | 2011-03-17 | United Technologies Corporation | Direct extrusion of shapes with l12 aluminum alloys |
| JP2017110266A (en) * | 2015-12-17 | 2017-06-22 | 株式会社神戸製鋼所 | Aluminum alloy-made brazing sheet excellent strength after brazing |
| CN106906383A (en) * | 2015-12-17 | 2017-06-30 | 株式会社神户制钢所 | The aluminum alloy brazing sheet of the excellent strength after soldering |
| CN106086488A (en) * | 2016-07-15 | 2016-11-09 | 南南铝业股份有限公司 | Subway station furred ceiling aluminium alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵忠魁: "《含锂铝合金的组织与性能》", 31 May 2013 * |
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| WO2019161137A1 (en) * | 2018-02-14 | 2019-08-22 | Arconic Inc. | Aluminum alloy products and methods for producing the same |
| CN109536723A (en) * | 2018-12-27 | 2019-03-29 | 西南铝业（集团）有限责任公司 | A kind of recovery method of aluminium lithium alloy processing bit |
| CN111074114A (en) * | 2020-01-03 | 2020-04-28 | 北京科技大学 | Al-Si-Mg-Li series aluminum alloy and preparation method thereof |
| CN111074114B (en) * | 2020-01-03 | 2021-02-26 | 北京科技大学 | Al-Si-Mg-Li series aluminum alloy and preparation method thereof |
| CN111893335A (en) * | 2020-08-05 | 2020-11-06 | 郑州轻研合金科技有限公司 | Method for regenerating and recycling scrap of aluminum-lithium alloy waste |
| CN111893335B (en) * | 2020-08-05 | 2021-09-28 | 郑州轻研合金科技有限公司 | Method for regenerating and recycling scrap of aluminum-lithium alloy waste |
| CN114807690A (en) * | 2022-04-27 | 2022-07-29 | 山东裕航特种合金装备有限公司 | Plastic aluminum lithium alloy and preparation method thereof |
| CN115992322A (en) * | 2022-12-16 | 2023-04-21 | 中国兵器科学研究院宁波分院 | Preparation method of aluminum alloy |
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