CN107230508A - A kind of graphene rare earth aluminium alloy height leads the preparation method of material cable - Google Patents
A kind of graphene rare earth aluminium alloy height leads the preparation method of material cable Download PDFInfo
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Abstract
The invention discloses the preparation method that a kind of graphene rare earth aluminium alloy height leads material cable, aluminium alloy is obtained by the way that aluminium scrap, calcium-silicon, albronze, allumen, magnesium ingot, rare earth aluminium alloy, graphene are carried out into melting, then it is heat-treated, then is processed and obtains graphene rare earth aluminium alloy height and lead material cable.A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, by rationally setting technological parameter, optimize the structure of graphene, be effectively improved the overall performance of aluminium alloy, so as to get graphene rare earth aluminium alloy height lead material cable there is good intensity, plasticity, electric conductivity, heat resistance, flexing fatigue life and processing characteristics.
Description
Technical field
The preparation of material cable is led the present invention relates to field of cable technology, more particularly to a kind of graphene rare earth aluminium alloy height
Method.
Background technology
With the fast development and the continuous improvement of living standards of the people of Chinese national economy, power industry turns into support state
People's economy and the infrastructural industries and public utilities of social development, people are to the degree of dependence of electric power also more and more higher.With me
State's electric power coverage is continuously increased, and electric wire is as the carrier of power transmission, and its demand also constantly increasing, using
Copper is as core, and expensive due to copper, density is big, so core used in electric wire can replace copper with aluminium, at present, uses
The core of conventional aluminium manufacture, its electric conductivity and heat resistance are performed poor, and often occur broken string phenomenon in production process, are entered
And add its production cost and use cost；Using aluminium alloy as core, the institutional framework in its aluminium alloy need to be changed
Kind, intensity and electric conductivity, the plasticity of aluminium alloy can not optimize simultaneously, while the flexing fatigue life of aluminium alloy is not good, these are all
Limit the use of aluminium alloy core.
The content of the invention
The technical problem existed based on background technology, the present invention is proposed a kind of graphene rare earth aluminium alloy height and leads material electricity
The preparation method of cable, by rationally setting technological parameter, optimizes the structure of graphene, is effectively improved the overall performance of aluminium alloy,
Obtained graphene rare earth aluminium alloy height is led material cable has good intensity, plasticity, electric conductivity, heat resistance, flex endurant
The advantages of fatigability and processing characteristics.
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 750-770 DEG C, adds aluminium scrap, after being warming up to 860-900 DEG C, addition after its thawing again
Calcium-silicon, albronze, allumen, magnesium ingot, after all melting, add rare earth aluminium alloy, are sufficiently stirred for, stand, take
Sample carries out rapid on-the-spot sample analysis, obtains aluminum alloy melt；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；
S3, aluminium alloy is heat-treated, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to multiply
It is stranded, core beam is made, then wrap up one layer of rubber-covered protective layer successively from inside to outside outside core beam, obtain graphene rare earth
Aluminium alloy height leads material cable.
Preferably, the component of aluminum alloy melt includes by weight percent：Cu：3.5-4.5%, Si：0.5-0.8%, Be：
0.2-0.3%, Mg：0.6-0.8%, Mo：0.1-0.2%, Fe：0.2-0.3%, Zn：0.3-0.6%, Zr：0.15-0.25%,
Sr：0.05-0.1%, Ca：0.5-0.8%, Co：0.04-0.12%, Eu：0.1-0.2%, Gd：0.1-0.15%, Nd：0.15-
0.25%, remaining is Al and inevitable impurity.
In specific embodiment, Cu mass percent is 3.6%, 3.8%, 4%, 4.1%, 4.3%, 4.4%, Si matter
Amount percentage is 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, Be mass percent be 0.22%, 0.24%,
0.25%th, 0.27%, 0.29%, Mg mass percent be 0.62%, 0.65%, 0.68%, 0.7%, 0.74%,
0.78%, Mo mass percent be 0.12%, 0.14%, 0.15%, 0.17%, 0.19%, Fe mass percent be
0.22%th, 0.24%, 0.25%, 0.27%, 0.29%, Zn mass percent be 0.35%, 0.4%, 0.45%, 0.5%,
0.55%, Zr mass percent be 0.17%, 0.19%, 0.2%, 0.22%, 0.24%, Sr mass percent be
0.06%th, 0.07%, 0.08%, 0.09%, Ca mass percent is 0.55%, 0.6%, 0.65%, 0.7%, 0.75%,
Co mass percent is 0.05%, 0.06%, 0.08%, 0.1%, Eu mass percent be 0.12%, 0.14%,
0.15%th, 0.17%, 0.19%, Gd mass percent be 0.11%, 0.12%, 0.13%, 0.14%, Nd quality percentage
Number is 0.17%, 0.19%, 0.2%, 0.22%, 0.24%, and remaining is Al and inevitable impurity.
Preferably, in the component of aluminum alloy melt, Cu, Si, Mg, Mo mass percent meet following relational expression：2.1%
≤ 0.2 × Cu+Si+Mg+Mo≤2.5%.
Preferably, in the component of aluminum alloy melt, Eu, Gd, Nd mass percent meet following relational expression：0.45%≤
Eu+Gd+Nd≤0.5%.
Preferably, in the component of aluminum alloy melt, Be, Zn, Ca mass percent meet following relational expression：1.2%≤
Be+Zn+Ca≤1.45%.
Preferably, in S1, time of repose is 15-20min.
Preferably, in S2, the specific surface area of graphene is 2650-2700m2/ g, and be with the weight ratio of aluminum alloy melt
0.45-0.6:100。
Preferably, in S2, casting ladle temperature is 700-730 DEG C, and the pressure of casting machine cooling water is 4-6 kilograms, and aluminium is closed after casting
Temperature of the golden cast bar before milling train is entered is 460-480 DEG C, and emulsion temperature is 35-45 DEG C.
Preferably, in S3, heat treatment process is comprised the following steps that：Aluminium alloy is warming up to 210-240 in 15-20min
DEG C, then 300-350 DEG C is warming up to 5-8min, 2-3h is incubated, then be air-cooled to room temperature.
Aluminium scrap, calcium-silicon, albronze, allumen, magnesium ingot and rare earth aluminium alloy melting are obtained aluminium and closed by the present invention
Golden liquid, adjusts the mass percent of aluminum alloy melt each component, wherein, Cu, Si, Mg, Mo content are controlled, it is met 2.1%
≤ 0.2 × Cu+Si+Mg+Mo≤2.5%, rationally sets technological parameter, can effectively reduce primary silicon particle size in aluminium alloy,
Improve the adverse effect that Cu is caused to aluminium alloy corrosion resistance, generate CuAl2Phase and Mg5Al8Phase, Dispersed precipitate in aluminium alloy,
Aluminum alloy organization structure has been refined, while playing good deoxygenation and efficiencies of nitrogen removal, tensile strength, the surrender of aluminium alloy has been improved
Intensity, electric conductivity and heat resistance, then coordinate with Eu, Gd, Nd, with good dehydrogenation effect, aluminium alloy recrystallization temperature is improved,
Effectively prevent aluminium alloy from recrystallizing, and can significantly refine recrystal grain, reduce secondary intergranular away from the densification of raising aluminium alloy
Degree, improves the institutional framework of aluminium alloy, so as to improve the flexing fatigue life and processing characteristics of aluminium alloy；Add graphene stirring
Uniformly, the specific surface area of graphene is big, and is added before casting, reduces graphene by the time of high temperature, saves graphene only
Special two-dimensional structure, graphene uniform is distributed in aluminum alloy melt, and good combination interface is formed in aluminium alloy, hinders to combine
Dislocation movement and Crack Extension in the loading process of interface, reduce the gas in aluminium alloy and are mingled with, further crystal grain thinning is carried
The consistency of high-aluminium alloy, and promote constituent phases to tend to nodularization, while reducing the surface tension of aluminum alloy melt, increase aluminum alloy melt
Mobility, improve aluminium alloy hot-working character；Again by controlling Be, Zn, Ca content, meet its mass percent：
1.2%≤Be+Zn+Ca≤1.45%, forms CaSi phases, and coordinates with graphene, enables aluminum alloy to good plasticity and leads
Electrically, while having good dehydrogenation effect, stomata and crackle are prevented, improves the institutional framework of aluminium alloy；Pass through control
Process of thermal treatment parameter, rationally sets heating-up time and temperature, and further the institutional framework of optimization aluminium alloy, eliminates aluminium alloy
Residual stress, is effectively improved the overall performance of aluminium alloy.The present invention proposes a kind of graphene rare earth aluminium alloy height and leads material electricity
The preparation method of cable, by rationally setting technological parameter, optimizes the structure of graphene, is effectively improved the overall performance of aluminium alloy,
Obtained graphene rare earth aluminium alloy height is led material cable has good intensity, plasticity, electric conductivity, heat resistance, flex endurant
The advantages of fatigability and processing characteristics.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 750 DEG C, adds aluminium scrap, after being warming up to 860 DEG C again after its thawing, add calcium-silicon,
Albronze, allumen, magnesium ingot, after all melt after, add rare earth aluminium alloy, be sufficiently stirred for, stand 20min, sample into
The rapid on-the-spot sample analysis of row, obtains aluminum alloy melt；
S2, graphene is added in aluminum alloy melt, be well mixed, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；Wherein, casting ladle temperature is 700 DEG C, and the pressure of casting machine cooling water is 4 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature be 460 DEG C, emulsion temperature be 35 DEG C；
S3, aluminium alloy is heat-treated, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to multiply
It is stranded, core beam is made, then wrap up one layer of rubber-covered protective layer successively from inside to outside outside core beam, obtain graphene rare earth
Aluminium alloy height leads material cable.
Wherein, the component of aluminum alloy melt includes by weight percent：Cu：3.5%th, Si：0.8%th, Be：0.3%th, Mg：
0.8%th, Mo：0.1%th, Fe：0.3%th, Zn：0.3%th, Zr：0.15%th, Sr：0.1%th, Ca：0.5%th, Co：0.04%th, Eu：
0.2%th, Gd：0.1%th, Nd：0.15%, remaining is Al.
Embodiment 2
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 770 DEG C, adds aluminium scrap, after being warming up to 900 DEG C again after its thawing, add calcium-silicon,
Albronze, allumen, magnesium ingot, after all melt after, add rare earth aluminium alloy, be sufficiently stirred for, stand 15min, sample into
The rapid on-the-spot sample analysis of row, obtains aluminum alloy melt；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；Wherein, casting ladle temperature is 730 DEG C, and the pressure of casting machine cooling water is 6 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature be 480 DEG C, emulsion temperature be 45 DEG C；
S3, aluminium alloy in 15min is warming up to 210 DEG C, then 300 DEG C are warming up to 5min, be incubated 3h, then be air-cooled to room
Temperature, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to strands, core beam is made, then in core beam
Wrap up one layer of rubber-covered protective layer successively from inside to outside outside, obtain graphene rare earth aluminium alloy height and lead material cable.
Wherein, the component of aluminum alloy melt includes by weight percent：Cu：4.5%th, Si：0.5%th, Be：0.2%th, Mg：
0.6%th, Mo：0.2%th, Fe：0.2%th, Zn：0.6%th, Zr：0.25%th, Sr：0.05%th, Ca：0.8%th, Co：0.12%th, Eu：
0.1%th, Gd：0.15%th, Nd：0.25%, remaining is Al；
In S2, the specific surface area of graphene is 2650m2/ g, and be 0.45 with the weight ratio of aluminum alloy melt:100.
Embodiment 3
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 760 DEG C, adds aluminium scrap, after being warming up to 880 DEG C again after its thawing, add calcium-silicon,
Albronze, allumen, magnesium ingot, after all melt after, add rare earth aluminium alloy, be sufficiently stirred for, stand 18min, sample into
The rapid on-the-spot sample analysis of row, obtains aluminum alloy melt；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；Wherein, casting ladle temperature is 720 DEG C, and the pressure of casting machine cooling water is 5 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature be 475 DEG C, emulsion temperature be 40 DEG C；
S3, aluminium alloy in 20min is warming up to 240 DEG C, then 350 DEG C are warming up to 8min, be incubated 2h, then be air-cooled to room
Temperature, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to strands, core beam is made, then in core beam
Wrap up one layer of rubber-covered protective layer successively from inside to outside outside, obtain graphene rare earth aluminium alloy height and lead material cable.
Wherein, the component of aluminum alloy melt includes by weight percent：Cu：4%th, Si：0.64%th, Be：0.25%th, Mg：
0.72%th, Mo：0.14%th, Fe：0.23%th, Zn：0.45%th, Zr：0.21%th, Sr：0.08%th, Ca：0.65%th, Co：0.08%th,
Eu：0.16%th, Gd：0.12%th, Nd：0.18%, remaining is Al；
In S2, the specific surface area of graphene is 2700m2/ g, and be 0.6 with the weight ratio of aluminum alloy melt:100.
Embodiment 4
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 755 DEG C, adds aluminium scrap, after being warming up to 865 DEG C again after its thawing, add calcium-silicon,
Albronze, allumen, magnesium ingot, after all melting, add rare earth aluminium alloy, are sufficiently stirred for, and stand 16.5min, sampling
Rapid on-the-spot sample analysis is carried out, aluminum alloy melt is obtained；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；Wherein, casting ladle temperature is 725 DEG C, and the pressure of casting machine cooling water is 6 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature be 465 DEG C, emulsion temperature be 42 DEG C；
S3, aluminium alloy in 16.5min is warming up to 220 DEG C, then 320 DEG C are warming up to 5.5min, be incubated 2.8h, then air cooling
Aluminium alloy wire is processed into room temperature, then by aluminium alloy, aluminium alloy wire is then subjected to strands, core beam is made, then online
Wrap up one layer of rubber-covered protective layer outside core beam successively from inside to outside, obtain graphene rare earth aluminium alloy height and lead material cable.
Wherein, the component of aluminum alloy melt includes by weight percent：Cu：3.8%th, Si：0.62%th, Be：0.23%th, Mg：
0.66%th, Mo：0.12%th, Fe：0.27%th, Zn：0.38%th, Zr：0.18%th, Sr：0.06%th, Ca：0.59%th, Co：0.06%th,
Eu：0.14%th, Gd：0.11%th, Nd：0.21%, remaining is Al；
In S2, the specific surface area of graphene is 2680m2/ g, and be 0.5 with the weight ratio of aluminum alloy melt:100.
Embodiment 5
A kind of graphene rare earth aluminium alloy height proposed by the present invention leads the preparation method of material cable, comprises the following steps that：
S1, melting furnace is warming up to 760 DEG C, adds aluminium scrap, after being warming up to 875 DEG C again after its thawing, add calcium-silicon,
Albronze, allumen, magnesium ingot, after all melting, add rare earth aluminium alloy, are sufficiently stirred for, and stand 18.5min, sampling
Rapid on-the-spot sample analysis is carried out, aluminum alloy melt is obtained；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium
Alloy；Wherein, casting ladle temperature is 705 DEG C, and the pressure of casting machine cooling water is 4 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature be 465 DEG C, emulsion temperature be 37 DEG C；
S3, aluminium alloy in 18min is warming up to 235 DEG C, then 340 DEG C are warming up to 6.5min, be incubated 2.3h, then be air-cooled to
Room temperature, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to strands, core beam is made, then in core
Wrap up one layer of rubber-covered protective layer outside beam successively from inside to outside, obtain graphene rare earth aluminium alloy height and lead material cable.
Wherein, the component of aluminum alloy melt includes by weight percent：Cu：4.25%th, Si：0.72%th, Be：0.26%th, Mg：
0.75%th, Mo：0.18%th, Fe：0.22%th, Zn：0.51%th, Zr：0.22%th, Sr：0.09%th, Ca：0.66%th, Co：0.1%th,
Eu：0.18%th, Gd：0.11%th, Nd：0.17%, remaining is Al；
In S2, the specific surface area of graphene is 2690m2/ g, and be 0.55 with the weight ratio of aluminum alloy melt:100.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of graphene rare earth aluminium alloy height leads the preparation method of material cable, it is characterised in that comprise the following steps that：
S1, melting furnace is warming up to 750-770 DEG C, adds aluminium scrap, after being warming up to 860-900 DEG C again after its thawing, add silico-calcium
Alloy, albronze, allumen, magnesium ingot, after all melt after, add rare earth aluminium alloy, be sufficiently stirred for, stand, sample into
The rapid on-the-spot sample analysis of row, obtains aluminum alloy melt；
S2, graphene is added in aluminum alloy melt, stirred, then carried out casting rolling, be air-cooled to room temperature and obtain aluminium alloy；
S3, aluminium alloy is heat-treated, then aluminium alloy is processed into aluminium alloy wire, aluminium alloy wire is then subjected to multiply strand
Close, core beam is made, then one layer of rubber-covered protective layer is wrapped up successively from inside to outside outside core beam, obtain graphene rare earth aluminium
Alloy height leads material cable.
2. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 1, it is characterised in that aluminium is closed
The component of golden liquid includes by weight percent：Cu：3.5-4.5%, Si：0.5-0.8%, Be：0.2-0.3%, Mg：0.6-
0.8%th, Mo：0.1-0.2%, Fe：0.2-0.3%, Zn：0.3-0.6%, Zr：0.15-0.25%, Sr：0.05-0.1%, Ca：
0.5-0.8%, Co：0.04-0.12%, Eu：0.1-0.2%, Gd：0.1-0.15%, Nd：0.15-0.25%, remaining be Al and
Inevitable impurity.
3. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 2, it is characterised in that in aluminium
In the component of aluminium alloy, Cu, Si, Mg, Mo mass percent meet following relational expression：2.1%≤0.2 × Cu+Si+Mg+Mo
≤ 2.5%.
4. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 2, it is characterised in that in aluminium
In the component of aluminium alloy, Eu, Gd, Nd mass percent meet following relational expression：0.45%≤Eu+Gd+Nd≤0.5%.
5. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 2, it is characterised in that in aluminium
In the component of aluminium alloy, Be, Zn, Ca mass percent meet following relational expression：1.2%≤Be+Zn+Ca≤1.45%.
6. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 1, it is characterised in that S1
In, time of repose is 15-20min.
7. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 1, it is characterised in that S2
In, the specific surface area of graphene is 2650-2700m2/ g, and be 0.45-0.6 with the weight ratio of aluminum alloy melt:100.
8. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 1, it is characterised in that S2
In, casting ladle temperature is 700-730 DEG C, and the pressure of casting machine cooling water is 4-6 kilograms, and aluminium alloy cast bar is before milling train is entered after casting
Temperature is 460-480 DEG C, and emulsion temperature is 35-45 DEG C.
9. graphene rare earth aluminium alloy height leads the preparation method of material cable according to claim 1, it is characterised in that S3
In, heat treatment process is comprised the following steps that：Aluminium alloy is warming up to 210-240 DEG C in 15-20min, then heated up with 5-8min
To 300-350 DEG C, 2-3h is incubated, then be air-cooled to room temperature.
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| CN113223751A (en) * | 2021-04-30 | 2021-08-06 | 广州广缆电缆科技有限公司 | Aluminum alloy cable and preparation method thereof |
| CN114664489A (en) * | 2022-04-21 | 2022-06-24 | 广东欣意电缆有限公司 | Rare earth aluminum alloy cable and preparation method thereof |
| CN116994792A (en) * | 2023-08-02 | 2023-11-03 | 祥龙实业控股(海南)有限公司 | Graphene copper-clad aluminum alloy wire, preparation method thereof and electric wire and cable |
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| CN114664489A (en) * | 2022-04-21 | 2022-06-24 | 广东欣意电缆有限公司 | Rare earth aluminum alloy cable and preparation method thereof |
| CN116994792A (en) * | 2023-08-02 | 2023-11-03 | 祥龙实业控股(海南)有限公司 | Graphene copper-clad aluminum alloy wire, preparation method thereof and electric wire and cable |
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