CN105543571A - High-strength aluminium alloy material and preparation method thereof - Google Patents
High-strength aluminium alloy material and preparation method thereof Download PDFInfo
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- CN105543571A CN105543571A CN201510931884.7A CN201510931884A CN105543571A CN 105543571 A CN105543571 A CN 105543571A CN 201510931884 A CN201510931884 A CN 201510931884A CN 105543571 A CN105543571 A CN 105543571A
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- 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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Abstract
The invention discloses a high-strength aluminium alloy material and a preparation method thereof. The high-strength aluminium alloy material comprises components in percentage by mass as follows: 0.003%-0.005% of cesium, 1.17%-1.23% of silver, 3.38%-3.46% of sodium chloride, 4.59%-4.85% of chromium and the balance of aluminium. Aluminium, chromium and a sodium chloride solution are placed in a reaction kettle to be sealed, and a mixture A is prepared after heating treatment; after smelting, silver is added for continuous smelting, then cesium is added for continuous smelting, the mixture is placed in a resistance furnace to be evenly annealed, and then the high-strength aluminium alloy material is prepared through extrusion. According to the high-strength aluminium alloy material and the preparation method thereof, the aluminium alloy material is high in elongation, high in tensile strength and high in yield strength under the coaction of the various components and the preparation process, is equivalent to or superior to part of 1XXX and 3XXX alloys and can keep stability of mechanical properties for a long time.
Description
Technical field
The present invention relates to technical field of alloy material, specifically high-strength aluminum alloy material and preparation method thereof.
Background technology
Primary aluminum is referred to as electrolytic aluminum in market supply, is the raw material producing aluminium and aluminium alloy material.Aluminium is the metal that intensity is low, plasticity is good, except applying portion fine aluminium, in order to improve intensity or over-all properties, is made into alloy.Add a kind of alloying element in aluminium, its weave construction and performance just can be made to change, be suitable for making various processing material or mo(u)lded piece.The alloying element often added has copper, magnesium, zinc, silicon, manganese etc.
Aluminium alloy have specific tenacity high, be shaped and the feature such as good processability, corrosion resistance and good, become very important aircraft construction material, in large aircraft structure, occupy very large usage ratio.World car recoverable amount grows with each passing day, and the series of problems such as consequent energy shortage, environmental pollution also become increasingly conspicuous, and aldural alleviates vehicle weight while guarantee vehicle safety performance, and then reduces energy consumption and alleviate environmental pollution.Aluminium alloy has broad application prospects in automotive industry and aircraft industry, and especially ultrahigh-strength aluminum alloy relies on the specific tenacity of its excellence to occupy very important effect especially in the development of automotive industry and aircraft industry.
As everyone knows, aluminum alloy materials extension property it is preferred that 1XXX and 3XXX, but the general tension of 1XXX and 3XXX and yield strength low, so just limit the application of this material.For aluminium extruded section industry, 6XXX alloy has best comprehensive use properties undoubtedly, but the unit elongation of 6XXX alloy is general only about 10%, more and more can not meet the needs of special industry.
Summary of the invention
The object of the present invention is to provide aluminum alloy materials that unit elongation is high, tensile strength is high, yield strength is high and preparation method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
High-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.003-0.005%, silver-colored 1.17-1.23%, sodium-chlor 3.38-3.46%, chromium 4.59-4.85%, and surplus is aluminium.
As the further scheme of the present invention: described high-strength aluminum alloy material, be grouped into by the following one-tenth according to mass percent: caesium 0.003-0.004%, silver-colored 1.19-1.21%, sodium-chlor 3.40-3.44%, chromium 4.65-4.75%, surplus is aluminium.
As the further scheme of the present invention: described high-strength aluminum alloy material, be grouped into by the following one-tenth according to mass percent: caesium 0.004%, silver 1.20%, sodium-chlor 3.42%, chromium 4.70%, surplus is aluminium.
The preparation method of described high-strength aluminum alloy material, is made up of following steps:
1) sodium-chlor is taken according to mass percent and soluble in water, be mixed with the sodium chloride solution that concentration is 0.5-0.8mol/L, then according to mass percent aluminium, chromium and sodium chloride solution inserted in reactor and seal, 380-400 DEG C is warming up within the time of 30-40min, and stir process 10-20min at such a temperature, then with vacuum pump, reactor is evacuated, continues to carry out heat treated 15-25min at such a temperature; Obtain the mixture A after process;
2) mixture A is inserted in smelting furnace be warming up to 690-695 DEG C and carry out melting 30-35min, obtained mixture B;
3) in mixture B, add silver, be warming up to 710-715 DEG C and continue melting 20-23min, skim simultaneously, obtained mixture DEG C;
4) in mixture DEG C, add caesium, at the temperature of 710-715 DEG C, continue melting 33-35min, skim simultaneously, obtained mixture D;
5) mixture D is placed in resistance furnace homogenizing annealing; First step annealing temperature is 655-658 DEG C, and is incubated 2.5-3h at this temperature; Second stage annealing temperature is 445-448 DEG C, and is incubated 4.5-5h at this temperature; Third stage annealing temperature is 512-515 DEG C, and is incubated 6-6.5h at this temperature, obtained mixture E;
6) mixture E is obtained high-strength aluminum alloy material by extruding.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is under the acting in conjunction of each component and preparation process, such that the unit elongation of aluminum alloy materials is high, tensile strength is high, yield strength is high; Meet or exceed part 1XXX and 3XXX alloy, the stability of mechanical property can have been kept in for a long time.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, high-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.003%, silver 1.17%, sodium-chlor 3.38%, chromium 4.59%, surplus is aluminium.
The preparation method of described high-strength aluminum alloy material, is made up of following steps:
1) sodium-chlor is taken according to mass percent and soluble in water, be mixed with the sodium chloride solution that concentration is 0.5mol/L, then according to mass percent aluminium, chromium and sodium chloride solution inserted in reactor and seal, 380 DEG C are warming up within the time of 30min, and stir process 10min at such a temperature, then with vacuum pump, reactor is evacuated, continues to carry out heat treated 15min at such a temperature; Obtain the mixture A after process;
2) mixture A is inserted in smelting furnace be warming up to 690 DEG C and carry out melting 30min, obtained mixture B;
3) in mixture B, add silver, be warming up to 710 DEG C and continue melting 20min, skim simultaneously, obtained mixture C;
4) in mixture C, add caesium, at the temperature of 710 DEG C, continue melting 33min, skim simultaneously, obtained mixture D;
5) mixture D is placed in resistance furnace homogenizing annealing; First step annealing temperature is 655 DEG C, and is incubated 2.5h at this temperature; Second stage annealing temperature is 445 DEG C, and is incubated 4.5h at this temperature; Third stage annealing temperature is 512 DEG C, and is incubated 6h at this temperature, obtained mixture E;
6) mixture E is obtained high-strength aluminum alloy material by extruding.
Embodiment 2
In the embodiment of the present invention, high-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.005%, silver 1.23%, sodium-chlor 3.46%, chromium 4.85%, surplus is aluminium.
The preparation method of described high-strength aluminum alloy material, is made up of following steps:
1) sodium-chlor is taken according to mass percent and soluble in water, be mixed with the sodium chloride solution that concentration is 0.8mol/L, then according to mass percent aluminium, chromium and sodium chloride solution inserted in reactor and seal, 400 DEG C are warming up within the time of 40min, and stir process 20min at such a temperature, then with vacuum pump, reactor is evacuated, continues to carry out heat treated 25min at such a temperature; Obtain the mixture A after process;
2) mixture A is inserted in smelting furnace be warming up to 695 DEG C and carry out melting 35min, obtained mixture B;
3) in mixture B, add silver, be warming up to 715 DEG C and continue melting 23min, skim simultaneously, obtained mixture C;
4) in mixture C, add caesium, at the temperature of 715 DEG C, continue melting 35min, skim simultaneously, obtained mixture D:
5) mixture D is placed in resistance furnace homogenizing annealing; First step annealing temperature is 658 DEG C, and is incubated 3h at this temperature; Second stage annealing temperature is 448 DEG C, and is incubated 5h at this temperature; Third stage annealing temperature is 515 DEG C, and is incubated 6.5h at this temperature, obtained mixture E;
6) mixture E is obtained high-strength aluminum alloy material by extruding.
Embodiment 3
In the embodiment of the present invention, high-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.003%, silver 1.19%, sodium-chlor 3.40%, chromium 4.65%, surplus is aluminium.
The preparation method of described high-strength aluminum alloy material, is made up of following steps:
1) sodium-chlor is taken according to mass percent and soluble in water, be mixed with the sodium chloride solution that concentration is 0.6mol/L, then according to mass percent aluminium, chromium and sodium chloride solution inserted in reactor and seal, 390 DEG C are warming up within the time of 35min, and stir process 15min at such a temperature, then with vacuum pump, reactor is evacuated, continues to carry out heat treated 20min at such a temperature; Obtain the mixture A after process;
2) mixture A is inserted in smelting furnace be warming up to 692 DEG C and carry out melting 32min, obtained mixture B;
3) in mixture B, add silver, be warming up to 712 DEG C and continue melting 22min, skim simultaneously, obtained mixture C;
4) in mixture C, add caesium, at the temperature of 712 DEG C, continue melting 34min, skim simultaneously, obtained mixture D;
5) mixture D is placed in resistance furnace homogenizing annealing; First step annealing temperature is 657 DEG C, and is incubated 2.7h at this temperature; Second stage annealing temperature is 447 DEG C, and is incubated 4.7h at this temperature; Third stage annealing temperature is 513 DEG C, and is incubated 6.2h at this temperature, obtained mixture E;
6) mixture E is obtained high-strength aluminum alloy material by extruding.
Embodiment 4
In the embodiment of the present invention, high-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.004%, silver 1.21%, sodium-chlor 3.44%, chromium 4.75%, surplus is aluminium.
Preparation process is consistent with embodiment 3.
Embodiment 5
In the embodiment of the present invention, high-strength aluminum alloy material, is grouped into by the following one-tenth according to mass percent: caesium 0.004%, silver 1.20%, sodium-chlor 3.42%, chromium 4.70%, surplus is aluminium.
Preparation process is consistent with embodiment 3.
Comparative example 1
Except not containing sodium-chlor, all the other formulas are consistent with preparation process and embodiment 5.
Comparative example 2
In preparation process, only lack the process of third stage annealing, fill a prescription consistent with all the other preparation process and embodiment 5.
Carried out the test of alloy property to the high-strength aluminum alloy material that embodiment 1-5 and comparative example 1-2 obtains, its result is as shown in table 1:
Table 1
Drawn by above data, the present invention is under the acting in conjunction of each component, particularly the existence of sodium-chlor, such that the unit elongation of aluminum alloy materials is high, tensile strength is high, yield strength is high.In preparation process, adopt three grades of annealing to be beneficial in the present invention improve its unit elongation, intensity etc.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. high-strength aluminum alloy material, is characterized in that, is grouped into by the following one-tenth according to mass percent: caesium 0.003-0.005%, silver-colored 1.17-1.23%, sodium-chlor 3.38-3.46%, chromium 4.59-4.85%, and surplus is aluminium.
2. high-strength aluminum alloy material according to claim 1, is characterized in that, is grouped into by the following one-tenth according to mass percent: caesium 0.003-0.004%, silver-colored 1.19-1.21%, sodium-chlor 3.40-3.44%, chromium 4.65-4.75%, and surplus is aluminium.
3. high-strength aluminum alloy material according to claim 2, is characterized in that, is grouped into by the following one-tenth according to mass percent: caesium 0.004%, silver 1.20%, sodium-chlor 3.42%, chromium 4.70%, surplus is aluminium.
4. the preparation method of the high-strength aluminum alloy material as described in as arbitrary in claim 1-3, is characterized in that, be made up of following steps:
1) sodium-chlor is taken according to mass percent and soluble in water, be mixed with the sodium chloride solution that concentration is 0.5-0.8mol/L, then according to mass percent aluminium, chromium and sodium chloride solution inserted in reactor and seal, 380-400 DEG C is warming up within the time of 30-40min, and stir process 10-20min at such a temperature, then with vacuum pump, reactor is evacuated, continues to carry out heat treated 15-25min at such a temperature; Obtain the mixture A after process;
2) mixture A is inserted in smelting furnace be warming up to 690-695 DEG C and carry out melting 30-35min, obtained mixture B;
3) in mixture B, add silver, be warming up to 710-715 DEG C and continue melting 20-23min, skim simultaneously, obtained mixture C;
4) in mixture C, add caesium, at the temperature of 710-715 DEG C, continue melting 33-35min, skim simultaneously, obtained mixture D;
5) mixture D is placed in resistance furnace homogenizing annealing; First step annealing temperature is 655-658 DEG C, and is incubated 2.5-3h at this temperature; Second stage annealing temperature is 445-448 DEG C, and is incubated 4.5-5h at this temperature; Third stage annealing temperature is 512-515 DEG C, and is incubated 6-6.5h at this temperature, obtained mixture E;
6) mixture E is obtained high-strength aluminum alloy material by extruding.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109252072A (en) * | 2018-10-15 | 2019-01-22 | 威海海鑫新材料有限公司 | A kind of high-precision aluminum foil stock and its preparation process |
| CN110600217A (en) * | 2018-06-12 | 2019-12-20 | 安徽邦瑞新材料科技有限公司 | Preparation method of magnetic material with low hysteresis loss |
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| CN109127002B (en) * | 2018-10-23 | 2021-06-11 | 枣庄鑫金山智能机械股份有限公司 | High-strength metamorphic alloy hammer head for sand making machine |
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| CN103103384A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Os-RE aluminium alloy, preparation method thereof and power cable |
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| CN103103384A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Os-RE aluminium alloy, preparation method thereof and power cable |
| CN103103387A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-C-RE aluminium alloy, preparation method thereof and power cable |
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Cited By (2)
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| CN110600217A (en) * | 2018-06-12 | 2019-12-20 | 安徽邦瑞新材料科技有限公司 | Preparation method of magnetic material with low hysteresis loss |
| CN109252072A (en) * | 2018-10-15 | 2019-01-22 | 威海海鑫新材料有限公司 | A kind of high-precision aluminum foil stock and its preparation process |
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