CN108004441A - A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof - Google Patents
A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof Download PDFInfo
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- CN108004441A CN108004441A CN201711083276.0A CN201711083276A CN108004441A CN 108004441 A CN108004441 A CN 108004441A CN 201711083276 A CN201711083276 A CN 201711083276A CN 108004441 A CN108004441 A CN 108004441A
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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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
- 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
- C22F1/047—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 magnesium as the next major constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
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Abstract
The present invention relates to a kind of aluminium alloy of high-strength high-conductivity and preparation method thereof, the aluminium alloy is made of following components (wt%) by weight percentage：Mg：0.5~0.54, Mn≤0.01, Zn≤0.01, Si：0.41~0.45, Fe：0.09~0.18, Cu≤0.01, mischmetal Re：0.31~0.5, surplus is Al and inevitable impurity.Aluminium alloy provided by the invention and preparation method have the advantage that compared with the prior art：By adding suitable rare earth element Re in preparation process, can reduce during the solid-liquid of aluminium alloy interdendritic away from, crystal grain thinning, plus the content ratio by controlling Mg and Si, improve the intensity of aluminium alloy, rare earth element forms multi-element compounds with objectionable impurities at the same time, can effectively reduce its adverse effect, improve the electrical conductivity of aluminium alloy.
Description
Technical field
The present invention relates to aluminium alloy manufacture field, aluminium alloy and its preparation more particularly to a kind of high-strength high-conductivity
Method.
Background technology
In metal existing for nature, silver-colored resistivity is minimum, secondly copper, is gold and aluminium again.In transmission line of electricity material
In the selection of material, the resistivity of gold and aluminium is very close, so being generally also only limitted to high-end essence without considering using gold, silver-colored use
In close equipment.The transmission line of electricity material that uses on a large scale of the country is copper at present, but the reserves of copper are also limited, and price is not yet
Low, foreign countries have begun to large-scale use aluminium alloy conductor and substitute copper conductor, some national substitution rates even have been over
50%.But the electrical conductivity of aluminium is relatively low, intensity is not also high, and the intensity of aluminium alloy and electrical conductivity mutually restrict,
The big electrical conductivity of intensity is low, and the high intensity of electrical conductivity is low, therefore we are necessary to research and develop the aluminium alloy material of high-strength high-conductivity
Material, improves the intensity and electrical conductivity of aluminum alloy materials, enables aluminum alloy to material and can play make general substitute of Cu alloy material
With.
Chinese patent：A kind of high conductivity, high-strength aluminum alloy and preparation method thereof (Authorization Notice No.
CN104152760B a kind of aluminium alloy and preparation method thereof) is disclosed, from performance measurement result, although improving conductance
Rate, but intensity is not obviously improved.
The content of the invention
In order to improve the performance of alloy product, the intensity of aluminium alloy is improved while electrical conductivity is improved, the present invention carries
A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof is supplied, concrete technical scheme is as follows：
A kind of high-strength high-conductivity aluminium alloy, it is characterised in that be made of following components (wt%) by weight percentage：
Mg：0.5~0.54, Mn≤0.01, Zn≤0.01, Si：0.41~0.45, Fe：0.09~0.18, Cu≤0.01, mischmetal
Re：0.31~0.5, surplus is Al and inevitable impurity.
Further, the aluminium alloy is made of following components (wt%) by weight percentage：Mg：0.52~0.53, Mn
≤0.009、Zn≤0.009、Si：0.43~0.44, Fe：0.11~0.13, Cu≤0.009, mischmetal Re：0.34~
0.45, surplus is Al and inevitable impurity.
Further, the aluminium alloy is made of following components (wt%) by weight percentage：Mg：0.523、Mn：
0.0018、Zn：0.0048、Si：0.436、Fe：0.116、Cu：0.0027th, mischmetal Re：0.4, surplus is Al and can not keep away
The impurity exempted from.
The method for preparing above-described high-strength high-conductivity aluminium alloy, comprises the following steps：
Melting, smelting temperature be 700 DEG C~755 DEG C, into smelting furnace add aluminium ingot, silicon ingot, magnesium ingot, iron additive, mix
With rare earth and micro Zn, Cu, Mn, refined 15~20 minutes with argon gas again after stirring in 15~20 minutes, through online degasification
Take surface lime-ash off again, molten aluminum stands 15~20 minutes；
Casting, casting temperature be 690 DEG C~730 DEG C, casting speed be 60~95mm/min, casting hydraulic pressure be 0.05~
0.15MPa, then carries out ingot casting Homogenization Treatments, and treatment temperature is 560 ± 5 DEG C, when the time is 8 small, after treatment water
Quench, the alloy material after Homogenization Treatments carries out hot extrusion；
Artificial aging be heat-treated, aging strengthening model temperature be 200 ± 5 DEG C, when the time 3~4 is small, after heat treatment can into
Product aluminum alloy materials.
Further, the smelting temperature is 735 DEG C~745 DEG C.
Further, the smelting temperature is 740 DEG C.
Further, the casting temperature is 695 DEG C~715 DEG C.
Further, the casting temperature is 705 DEG C.
Aluminium alloy provided by the invention and preparation method have the advantage that compared with the prior art：
By adding suitable rare earth element Re in preparation process, dendrite can be reduced during the solid-liquid of aluminium alloy
Spacing, crystal grain thinning, plus the content ratio by controlling Mg and Si, improves the intensity of aluminium alloy, at the same rare earth element with it is harmful
Impurity forms multi-element compounds, can effectively reduce its adverse effect, improve the electrical conductivity of aluminium alloy.
Embodiment
Content that the invention will now be further described with reference to specific embodiments, so that those skilled in the art can be more preferable
Ground understands the present invention.
A kind of high-strength high-conductivity aluminium alloy of embodiment 1, is made of following components (wt%) by weight percentage：Mg：
0.5~0.54, Mn≤0.01, Zn≤0.01, Si：0.41~0.45, Fe：0.09~0.18, Cu≤0.01, mischmetal Re：
0.31~0.5, surplus is Al and inevitable impurity.
The method for preparing above-mentioned aluminium alloy, comprises the following steps：
Melting, smelting temperature be 700 DEG C~755 DEG C, into smelting furnace add aluminium ingot, silicon ingot, magnesium ingot, iron additive, mix
With rare earth and micro Zn, Cu, Mn, refined 15~20 minutes with argon gas again after stirring in 15~20 minutes, through online degasification
Take surface lime-ash off again, molten aluminum stands 15~20 minutes；
Casting, casting temperature be 690 DEG C~730 DEG C, casting speed be 60~95mm/min, casting hydraulic pressure be 0.05~
0.15MPa, then carries out ingot casting Homogenization Treatments, and treatment temperature is 560 ± 5 DEG C, when the time is 8 small, after treatment water
Quench, the alloy material after Homogenization Treatments carries out hot extrusion；
Artificial aging be heat-treated, aging strengthening model temperature be 200 ± 5 DEG C, when the time 3~4 is small, after heat treatment can into
Product aluminum alloy materials.
A kind of high-strength high-conductivity aluminium alloy of embodiment 2, is made of following components (wt%) by weight percentage：Mg：
0.52~0.53, Mn≤0.009, Zn≤0.009, Si：0.43~0.44, Fe：0.11~0.13, Cu≤0.009, mischmetal
Re：0.34~0.45, surplus is Al and inevitable impurity.
The method for preparing above-mentioned aluminium alloy, comprises the following steps：
Melting, smelting temperature be 700 DEG C~755 DEG C, into smelting furnace add aluminium ingot, silicon ingot, magnesium ingot, iron additive, mix
With rare earth and micro Zn, Cu, Mn, refined 15~20 minutes with argon gas again after stirring in 15~20 minutes, through online degasification
Take surface lime-ash off again, molten aluminum stands 15~20 minutes；
Casting, casting temperature be 695 DEG C~715 DEG C, casting speed be 60~95mm/min, casting hydraulic pressure be 0.05~
0.15MPa, then carries out ingot casting Homogenization Treatments, and treatment temperature is 560 ± 5 DEG C, when the time is 8 small, after treatment water
Quench, the alloy material after Homogenization Treatments carries out hot extrusion；
Artificial aging be heat-treated, aging strengthening model temperature be 200 ± 5 DEG C, when the time 3~4 is small, after heat treatment can into
Product aluminum alloy materials.
A kind of high-strength high-conductivity aluminium alloy of embodiment 3, is made of following components (wt%) by weight percentage：Mg：
0.523、Mn：0.0018、Zn：0.0048、Si：0.436、Fe：0.116、Cu：0.0027th, mischmetal Re：0.4, surplus Al
And inevitable impurity.
The method for preparing above-mentioned aluminium alloy, comprises the following steps：
Melting, smelting temperature be 740 DEG C, into smelting furnace addition aluminium ingot, silicon ingot, magnesium ingot, iron additive, mixed rear earth with
And micro Zn, Cu, Mn, refined 15~20 minutes with argon gas again after stirring in 15~20 minutes, table is taken off again through online degasification
Face lime-ash, molten aluminum stand 15~20 minutes；
Casting, casting temperature are 705 DEG C, and casting speed is 60~95mm/min, and casting hydraulic pressure is 0.05~0.15MPa,
Then Homogenization Treatments are carried out to ingot casting, treatment temperature is 560 ± 5 DEG C, when the time is 8 small, after treatment water quenching, homogenization
Alloy material after processing carries out hot extrusion；
Artificial aging be heat-treated, aging strengthening model temperature be 200 ± 5 DEG C, when the time 3~4 is small, after heat treatment can into
Product aluminum alloy materials.
Test example 1
To the present invention three embodiments prepare product and commercial product carry out tensile strength, yield strength, elongation percentage,
Four progress contrast tests such as electrical conductivity, the results are shown in Table 1：
Table 1
As can be seen from the above table, according to the alloy product that method provided by the invention is prepared in intensity, elongation percentage, electricity
There is larger lifting in the performance ratio commercial product of conductance etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, can not be all the present invention's to limit the present invention
All any modification, equivalent and improvement made within spirit and principle etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of high-strength high-conductivity aluminium alloy, it is characterised in that be made of following components (wt%) by weight percentage：
Mg：0.5~0.54, Mn≤0.01, Zn≤0.01, Si：0.41~0.45, Fe：0.09~0.18, Cu≤0.01, mischmetal
Re：0.31~0.5, surplus is Al and inevitable impurity.
2. high-strength high-conductivity aluminium alloy described in accordance with the claim 1, it is characterised in that by following components percentage by weight
Formed than (wt%)：Mg：0.52~0.53, Mn≤0.009, Zn≤0.009, Si：0.43~0.44, Fe：0.11~0.13, Cu
≤ 0.009, mischmetal Re：0.34~0.45, surplus is Al and inevitable impurity.
3. high-strength high-conductivity aluminium alloy described in accordance with the claim 2, it is characterised in that by following components percentage by weight
Formed than (wt%)：Mg：0.523、Mn：0.0018、Zn：0.0048、Si：0.436、Fe：0.116、Cu：0.0027th, mix dilute
Native Re：0.4, surplus is Al and inevitable impurity.
4. the method according to claims 1 to 3 any one of them high-strength high-conductivity aluminium alloy is prepared, including following step
Suddenly：
Melting, smelting temperature are 700~755 DEG C, and aluminium ingot, silicon ingot, magnesium ingot, iron additive, mixed rear earth are added into smelting furnace
And micro Zn, Cu, Mn, refined 15~20 minutes with argon gas after stirring in 15~20 minutes, taken off again through online degasification again
Surface lime-ash, molten aluminum stand 15~20 minutes；
Casting, casting temperature be 690 DEG C~730 DEG C, casting speed be 60~95mm/min, casting hydraulic pressure be 0.05~
0.15MPa, then carries out ingot casting Homogenization Treatments, and treatment temperature is 560 ± 5 DEG C, when the time is 8 small, after treatment water
Quench, the alloy material after Homogenization Treatments carries out hot extrusion；
Artificial aging is heat-treated, and aging strengthening model temperature is 200 ± 5 DEG C, and when the time 3~4 is small, finished product aluminium can be obtained after heat treatment
Alloy material.
5. in accordance with the method for claim 4, it is characterised in that：The smelting temperature is 735 DEG C~745 DEG C.
6. in accordance with the method for claim 5, it is characterised in that：The smelting temperature is 740 DEG C.
7. in accordance with the method for claim 4, it is characterised in that：The casting temperature is 695 DEG C~715 DEG C.
8. in accordance with the method for claim 7, it is characterised in that：The casting temperature is 705 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711083276.0A CN108004441A (en) | 2017-11-07 | 2017-11-07 | A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof |
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| CN201711083276.0A CN108004441A (en) | 2017-11-07 | 2017-11-07 | A kind of aluminium alloy of high-strength high-conductivity and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337762A (en) * | 2021-06-04 | 2021-09-03 | 重庆德普电气有限公司 | Aluminum alloy material and transformer wire clamp prepared based on same |
| CN115354200A (en) * | 2022-10-20 | 2022-11-18 | 山东裕航特种合金装备有限公司 | Aluminum alloy material for battery connecting plate and preparation method thereof |
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| CN104313413A (en) * | 2014-10-24 | 2015-01-28 | 北京科技大学 | Al-Mg-Zn series alloy and preparation method of alloy plate of Al-Mg-Zn series alloy |
| CN104561698A (en) * | 2014-12-31 | 2015-04-29 | 浙江乐祥铝业有限公司 | Aluminum alloy material as well as preparing method and application thereof |
| CN106011564A (en) * | 2016-07-25 | 2016-10-12 | 无锡海特铝业有限公司 | Coarse ring-free aluminum alloy bar and preparation method thereof |
| CN107043878A (en) * | 2017-05-10 | 2017-08-15 | 广东伟业铝厂集团有限公司 | Aluminum alloy materials and its production technology, the electric conductor of high-strength high-conductivity |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205614A (en) * | 2013-03-27 | 2013-07-17 | 成都阳光铝制品有限公司 | Novel 6063 aluminum alloy material and its production technology |
| CN104313413A (en) * | 2014-10-24 | 2015-01-28 | 北京科技大学 | Al-Mg-Zn series alloy and preparation method of alloy plate of Al-Mg-Zn series alloy |
| CN104561698A (en) * | 2014-12-31 | 2015-04-29 | 浙江乐祥铝业有限公司 | Aluminum alloy material as well as preparing method and application thereof |
| CN106011564A (en) * | 2016-07-25 | 2016-10-12 | 无锡海特铝业有限公司 | Coarse ring-free aluminum alloy bar and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337762A (en) * | 2021-06-04 | 2021-09-03 | 重庆德普电气有限公司 | Aluminum alloy material and transformer wire clamp prepared based on same |
| CN115354200A (en) * | 2022-10-20 | 2022-11-18 | 山东裕航特种合金装备有限公司 | Aluminum alloy material for battery connecting plate and preparation method thereof |
| CN115354200B (en) * | 2022-10-20 | 2023-01-24 | 山东裕航特种合金装备有限公司 | Aluminum alloy material for battery connecting plate and preparation method thereof |
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