CN114944237A - High antitorque aluminum alloy wire and soft conductor - Google Patents
High antitorque aluminum alloy wire and soft conductor Download PDFInfo
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- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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Abstract
The invention discloses a high anti-torsion aluminum alloy wire and a soft conductor, wherein the high anti-torsion aluminum alloy wire comprises the following main trace alloy elements in percentage by weight: si is less than or equal to 0.08 wt%; fe: 0.20 wt% -0.90 wt%; cu: 0.05 wt% -0.30 wt%; mg is less than or equal to 0.05 wt%; zn is less than or equal to 0.02wt percent; y: 0.020 wt% -0.060 wt%; er: 0.03 to 0.08 weight percent; and (C) Sc: 0.02 wt% -0.20 wt%; ce: 0.005-0.05 wt% of Al, more than or equal to 99.60 wt% of Al, and stranding the conductor after drawing for multiple times into a conductor and aging, wherein the obtained conductor has high strength, high conductivity, high toughness and high heat resistance, and the finished soft aluminum alloy stranded conductor can meet the requirements of +/-1440 DEG torsion 3000 times at-40 ℃ and +/-1440 DEG torsion 10000 times at normal temperature, and meets the requirement of high torsion resistance of the wind power tower conductor.
Description
Technical Field
The invention relates to the technical field of conductors, in particular to a high-torsion-resistance aluminum alloy wire and a soft conductor.
Background
The method has the advantages of vigorously developing renewable energy sources, promoting green and low-carbon development, and being an important measure for coping with climate change and fulfilling international commitments in China. In recent years, clean energy such as wind power generation and the like has been rapidly developed; however, the investment cost of wind power is high, and the long investment recovery period is a large factor for restricting the development of wind power; although the state goes out of some subsidy policies, the wind power investment cost is too high, and pressure is still caused to wind power investment enterprises, and how to reduce the conductor cost on the premise of not reducing the power transmission reliability of the fan is a common problem facing wind power main engine companies and conductor enterprises.
The wind power torsion conductor needs to frequently rotate along with the cabin, and the conductor needs to bear the tension of the self free suspension weight and the shearing force in the torsion process; the 5-class copper conductor has higher strength and flexibility, is always used for wind power torsion conductors, but has small tensile resistance and elongation and poor torsion resistance, and cannot be used for wind power torsion resistant sections; in order to solve the problem of poor strength and flexibility of the aluminum conductor, the aluminum conductor can be used for replacing a class 5 copper conductor with a class 5 soft conductor. The soft conductor in the current market is an aluminum conductor, the strength and the elongation are low, the heat resistance is poor, the elongation is poor after wire drawing according to a 5-class conductor structure, the shear force in the twisting process cannot be borne, and the process requirements cannot be met in performance; the strength, elongation and torsion resistance of the aluminum alloy are improved, and the development work is focused.
Chinese patent CN201720006799.4 relates to a low-voltage aluminum alloy conductor for a wind power plant, which is used for the wind power plant, is constructed in a fixed laying mode without twisting, and has a conductor structure of a second type, but the structure is relatively hard and cannot be used in a tower; the Chinese patent CN201911100984.X relates to a soft aluminum alloy wire core for a wind power tower torsion conductor and a preparation method thereof, the aluminum alloy conductor can be used in torsion occasions, but graphene sodium magnesium aluminum powder is adopted, the material is high in cost on one hand, and high in processing difficulty on the other hand, agglomeration is easily generated in a mixing process, so that the uniformity of the conductor is poor, on the other hand, the conductor is high in strength, but insufficient in toughness, and easy to break after repeated bending, and on the fourth hand, the conductor is poor in heat resistance, and the strength is sharply reduced when the conductor runs at high temperature for a long time, so that the conductor is worthy of improvement.
Disclosure of Invention
In order to solve the technical problems of small tensile strength and elongation and insufficient torsion resistance of the aluminum alloy, the invention provides a high-torsion-resistance aluminum alloy wire and a soft conductor prepared by adopting the high-torsion-resistance aluminum alloy wire.
The technical scheme for realizing the invention is as follows:
the high torsion resistant aluminum alloy wire comprises the following main trace alloy elements in percentage by weight:
Si≤0.08wt％；
Fe：0.20wt％～0.90wt％；
Cu：0.05wt％～0.30wt％；
Mg≤0.05wt％；
Zn≤0.02wt％；
Y：0.020wt％～0.060wt％；
Er：0.03wt％～0.08wt％；
Sc：0.02wt％～0.20wt％；
Ce：0.005wt％～0.05wt％；
Ti+V+Mn+Cr≤0.010wt％；
Al≥99.60wt％。
according to the invention, Y, B, Er and other elements are introduced into the aluminum alloy, and the elements can refine crystal grains, purify aluminum liquid, improve conductivity, and improve the torsion resistance of the conductive wire core, so that the mechanical property and toughness of the aluminum are greatly improved, and the alloy cost can be effectively reduced;
by adding a trace amount of Al-Sc alloy, the aluminum alloy conductor works at a long-term operation temperature, the strength change rate is not more than 5%, the conductivity of the aluminum alloy conductor is equivalent to that of a pure aluminum conductor, and the long-term operation reliability of the conductor is improved.
The invention also provides a soft conductor which is prepared by adopting the high torsion resistant aluminum alloy wire, and the specific preparation method comprises the following steps:
s1: smelting and rolling aluminium alloy rod
High-temperature smelting 99.7% of aluminum ingots, respectively adding Al-Fe, Al-Er, Al-Sc, Al-Y, Al-B and rare earth alloy into an aluminum solution in proportion, ensuring that each component meets the requirement through online analysis, and then preparing an aluminum alloy rod through stirring, refining degassing, slagging off, standing, online degassing, filtering, casting and rolling;
s2: large pull
Drawing the aluminum alloy rod prepared in the step S1 through a multi-die large drawing machine, and then placing the aluminum alloy rod into an aging furnace for aging to obtain large-drawn aluminum alloy wires;
s3: middle pull
Drawing the large drawn alloy wire prepared in the step S2 through a multi-die medium drawing machine, and then putting the drawn alloy wire into an aging furnace again for aging to obtain a medium drawn aluminum alloy wire;
s4: small puller
Drawing the medium-drawn aluminum alloy wire in the step S3 by a multi-die small drawing machine, and then putting the drawn aluminum alloy wire into an aging furnace again for aging to obtain an aluminum alloy single wire;
s5: stranding
Stranding the aluminum alloy single wire prepared in the step S4 with a high-elastic wire to form an aluminum alloy conductor;
s6: aging
And (5) placing the aluminum alloy conductor prepared in the step S5 into an aging furnace for aging to prepare the high-torsion-resistant aluminum alloy soft conductor.
Further, the diameter of the aluminum alloy rod produced in the step S1 is 9.5mm or 12.0 mm.
In the conductor preparation step, the aluminum alloy rod is subjected to multiple graded drawing, the diameter distribution is detected for multiple times in the drawing process, the aluminum alloy rod is relatively directly drawn, and the uniformity of the diameter is more guaranteed; the diameter of the finished product can be controlled according to actual requirements due to the distribution of the drawing process, so that the production is more flexible; the high-elastic yarns are added in the twisting process, so that the toughness of the conductor is further improved, the types of the high-elastic yarns can be changed according to application occasions, customized production is realized, and the requirements of customers are met; the aging is carried out after the twisting, cracks formed on the surface of the aluminum alloy single wire in the twisting process are closed to a certain extent, and the improvement of the mechanical property and the conductivity of the conductor is facilitated to a certain extent.
Further, the diameter of the large-drawing aluminum alloy wire prepared in the step S2 is 2.50 mm-3.50 mm, the elongation coefficient in the drawing process is 1.20-1.35, the aging temperature is 270 DEG and 300 ℃, and the aging time is 3-5 h.
Further, the diameter of the medium-drawn aluminum alloy wire prepared in the step S3 is 0.80-1.50 mm, the elongation coefficient in the drawing process is 1.15-1.30, the aging temperature is 270-300 ℃, and the aging time is 3-5 h.
Further, the diameter of the aluminum alloy single wire prepared in the step S4 is 0.15-0.50 mm, and the elongation coefficient in the stretching process is 1.10-1.25.
In the drawing process, the elongation coefficient, the aging temperature and the aging time can be adjusted according to actual requirements, and parameters are adjusted to obtain a product with better performance.
Further, a plurality of aluminum alloy single wires and one or more high-elastic wires are used in the stranding process in the step S5.
The step is to mix the high elastic yarns in the aluminum alloy single wires to improve the relevant performance of the product, and in the operation process, the basic performance is still ensured, so that a plurality of aluminum alloy single wires are required to be replaced only partially.
Further, the high elastic yarn in the step S5 is one or more of carbon fiber yarn, glass fiber yarn or polypropylene yarn.
The variety and the proportion of the high stretch yarn can be adjusted according to the actual application occasion, and the application requirement is met.
Further, the twisting in the step S5 may be performed by one or more twisting, and the twisting may be performed by regular twisting, irregular twisting or irregular twisting and then regular twisting.
Different twisting modes have certain influence on the wire connection and the flexibility of the cable, and the twisting direction of the wire to be connected needs to be confirmed in actual production.
Further, the aluminum alloy single wire adopted in the step S5 has a diameter of 0.15-0.50 mm, a tensile strength of not less than 115MPa, an elongation of not less than 15%, and a conductor resistivity of not more than 0.02800 omega mm at 20 DEG C 2 (ii)/m; the residual rate of strength is more than or equal to 95 percent at 230 ℃ for 1 hour.
Under the condition of meeting the parameter requirements, better product performance can be obtained.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) according to the invention, the problems of poor strength, poor flexibility and low heat resistance of an aluminum conductor are solved by adopting Al-Fe, Al-Er and Al-Sc components for the first time, and meanwhile, the integral aging technology after stranding is combined, so that a single wire of 0.15-0.50 mm is ensured to have high toughness, and meanwhile, the single wire has high strength, high conductivity and high heat resistance, the finished product soft aluminum alloy stranded conductor can meet the requirements of +/-1440 DEG torsion 3000 times at-40 ℃ and +/-1440 DEG torsion 10000 times at normal temperature, and the requirement of high torsion resistance of a wind power tower conductor is met.
(2) The high-elastic wires are added into the aluminum alloy single wires for twisting, so that the aluminum alloy single wires and the high-elastic wires have the properties of the aluminum alloy single wires and the high-elastic wires, and the mechanical property of the conductor is improved to a certain extent.
(3) The weight of the conductor is 1/3 of a copper conductor under the equal resistance, the bridge frame load is reduced, the installation cost is reduced, the gravity is light, the extension of the conductor caused by the action of gravity is avoided, and the service life of the conductor is prolonged; meanwhile, the creep resistance of the aluminum alloy conductor is equivalent to that of a copper conductor, and the connection reliability of the aluminum alloy conductor and the joint terminal is improved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the following examples, wherein
FIG. 1 is a view showing a structure of a primary wiring harness; wherein 1 is an aluminum alloy single wire, and 2 is a high stretch yarn;
fig. 2 is a structure view of a one-time normal stranded conductor;
FIG. 3 is a diagram of a secondary multiple twisting;
Detailed Description
In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to specific embodiments of the specification.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of embodiments of the present invention generally described and illustrated herein may be arranged and designed in a wide variety of different configurations.
Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
(example 1)
The high torsion resistant aluminum alloy wire comprises the following main trace alloy elements in percentage by weight:
Fe：0.37wt％；
Y：0.015wt％；
Er：0.020wt％；
Sc：0.020wt％；
Ce：0.015wt％；
B：0.025wt％；
Si：0.05wt％；
Mg：0.002wt％；
Zn：0.002wt％；
Ti+V+Mn+Cr：0.007wt％；
the balance of Al.
The method for preparing the soft conductor by using the high-torsion-resistance aluminum alloy wire comprises the following steps:
s1: rolled aluminium alloy rod
High-temperature smelting 99.7% of aluminum ingots, respectively adding Al-Fe, Al-Er, Al-Sc, Al-Y, Al-B and rare earth alloy into an aluminum solution in proportion, ensuring that each component meets the requirement through online analysis, and then preparing an aluminum alloy rod with the diameter of 9.5mm through stirring, refining degassing, slagging off, standing, online degassing, filtering, casting and rolling;
s2: large pull
Drawing the 9.50mm aluminum alloy rod obtained in the step S1 into 2.82mm aluminum alloy wires through a die 10, wherein the elongation coefficients of each pass are 1.29, 1.32, 1.30, 1.28, 1.27, 1.26 and 1.24 respectively, drawing to obtain 2.82mm aluminum alloy wires, and then placing the 2.82mm aluminum alloy wires into an aging furnace for aging at the aging temperature of 280 ℃ for 4 hours;
s3: middle pull
Die-drawing the aluminum alloy wire of 2.82mm obtained in the step S2 into the aluminum alloy wire of 1.20mm by a medium-drawing machine 8, wherein the elongation coefficient of each pass of the medium-drawing is 1.27, 1.26, 1.25, 1.24, 1.23 and 1.22; then putting the mixture into an aging furnace again for aging at the aging temperature of 280 ℃ for 3.5 h;
s4: small puller
Drawing the 1.20mm aluminum alloy wire in the S3 into 0.50 aluminum alloy wire through a small drawing machine 9 die, wherein the small drawing elongation coefficient is 1.24, 1.23, 1.22, 1.20 and 1.18, so as to prepare an aluminum alloy single wire;
s5: stranding
Stranding 15 aluminum alloy single wires with the diameter of 0.50mm and 7 high-elastic yarns with the diameter of 0.30mm on a high-speed bunching machine at one time, wherein the one-time stranding direction is the left direction, and forming 15/0.50 one-time plied yarns of the aluminum alloy stranded conductor;
regularly twisting 7 strands of primary strands in a right direction to form 7/15/0.50 secondary strands;
carrying out 1+6+12 normal stranding on the 19 strands of secondary strands, wherein the stranding direction of the outer layer is in the left direction, the stranding direction of the inner layer is in the right direction, and 400mm is formed 2 An aluminum alloy stranded conductor;
in the twisting step, the doubling die is selected to be 3.0-3.1 mm, the twisting pitch is controlled to be 35-55 mm, and the adjustment is carried out according to the tightness and the roundness of appearance twisting; and (5) preparing the aluminum alloy conductor.
S6: aging
400mm prepared in step S5 2 Placing the aluminum alloy conductor into an aging furnace for aging at the aging temperature of 280 ℃ for 4 hours to obtain the aluminum alloy conductor with the thickness of 400mm 2 A soft conductor of a high torsion resistant aluminum alloy;
(example 2)
The high torsion resistant aluminum alloy wire comprises the following main trace alloy elements in percentage by weight:
Fe：0.25wt％；
Y：0.010wt％；
Er：0.015wt％；
Sc：0.019wt％；
Ce：0.015wt％；
Si：0.05wt％；
Mg：0.002wt％；
Zn：0.002wt％；
Ti+V+Mn+Cr：0.007wt％；
the balance of Al;
the specific preparation method of the flexible conductor of this example is the same as that of example 1;
(example 3)
The element proportion of the high torsion resistant aluminum alloy wire of the embodiment is the same as that of the embodiment 2;
the specific preparation method of the flexible conductor of the embodiment includes the following steps:
s1: rolled aluminium alloy rod
High-temperature smelting 99.7% of aluminum ingots, respectively adding Al-Fe, Al-Er, Al-Sc, Al-Y, Al-B and rare earth alloy into an aluminum solution in proportion, ensuring that each component meets the requirement through online analysis, and then preparing an aluminum alloy rod with the diameter of 9.5mm through stirring, refining degassing, slagging off, standing, online degassing, filtering, casting and rolling;
s2: large pull
Drawing the 9.50mm aluminum alloy rod obtained in the step S1 into 2.50mm aluminum alloy wires through 11 dies, wherein the elongation coefficients of each pass are 1.29, 1.32, 1.30, 1.29, 1.28, 1.27, 1.26 and 1.25 respectively, drawing to obtain 2.32mm aluminum alloy wires, and then placing the 2.32mm aluminum alloy wires into an aging furnace for aging at the aging temperature of 280 ℃ for 4 hours;
s3: middle pull
Die-drawing the aluminum alloy wire of 2.32mm obtained in the step S2 into an aluminum alloy wire of 0.50mm by using a middle-drawing machine 13, wherein the elongation coefficient of each pass of the middle-drawing is 1.29, 1.28, 1.27, 1.26, 1.25, 1.24, 1.23, 1.22, 1.21 and 1.20, so as to obtain an aluminum alloy single wire;
s4: stranding
32 aluminum alloy single wires with the diameter of 0.50mm and 5 high-elastic yarns with the diameter of 0.30mm are stranded at one time on a high-speed bunching machine to form 32/0.50 aluminum alloy stranded wires, and the 32/0.50 aluminum alloy stranded wires are stranded together by 37 strands.
Arranging 37 strands of 32/0.50 aluminum alloy strands according to the arrangement of 1+6+12+18 for compound twisting, and placing the compound twisted conductor into an aging furnace for aging at the aging temperature of 280 ℃ for 4 hours to obtain an aluminum alloy conductor;
s5: aging
When the aluminum alloy conductor prepared in the step S5 is put into an aging furnace for carrying outThe aging temperature is 280 ℃, and the aging time is 4 hours, thereby obtaining 240mm 2 A flexible conductor of high torsion-resistant aluminum alloy.
The aluminum alloy flexible conductor is subjected to simulation test, wherein the aluminum alloy flexible conductor is twisted at +/-1440 ℃ for 3000 times at-40 ℃ and is twisted at +/-1440 ℃ for 10000 times at normal temperature, and verification shows that the resistance change rate of a wire core is not more than 5% and the wire breakage rate is not more than 1%. The problems of poor toughness and insufficient torsion resistance of aluminum products are solved, the cost of the wind power tower cylinder conductor can be greatly reduced, and the specific test data are shown in the following table 1:
TABLE 1 conductor test data sheets prepared in examples 1-3
And (3) testing the resistance of the conductor after low-temperature torsion: and the torsion is 3000 times at minus 40 ℃ and plus or minus 1440 ℃.
And (3) testing the resistance of the conductor after normal-temperature torsion: and twisting at +/-1440 ℃ for 10000 times at normal temperature.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A high antitorque aluminum alloy wire which characterized in that: the alloy comprises the following main trace alloy elements in percentage by weight:
Si≤0.08wt％；
Fe：0.20wt％～0.90wt％；
Cu：0.05wt％～0.30wt％；
Mg≤0.05wt％；
Zn≤0.02wt％；
Y：0.020wt％～0.060wt％；
Er：0.03wt％～0.08wt％；
Sc：0.02％wt％～0.20％wt％；
Ce：0.005wt％～0.05wt％；
Ti+V+Mn+Cr≤0.010wt％；
Al≥99.60wt％。
2. a flexible conductor, characterized by: the high-torsion-resistance aluminum alloy wire is prepared by the method according to claim 1, and the specific preparation method comprises the following steps:
s1: rolled aluminium alloy rod
High-temperature smelting 99.7% of aluminum ingots, respectively adding Al-Fe, Al-Er, Al-Sc, Al-Y, Al-B and rare earth alloy into an aluminum solution in proportion, ensuring that each component meets the requirement through online analysis, and then preparing an aluminum alloy rod through stirring, refining degassing, slagging off, standing, online degassing, filtering, casting and rolling;
s2: large pull
Drawing the aluminum alloy rod prepared in the step S1 through a multi-die large drawing machine, and then placing the aluminum alloy rod into an aging furnace for aging to obtain large-drawn aluminum alloy wires;
s3: middle pull
Drawing the large drawn alloy wire prepared in the step S2 through a multi-die medium drawing machine, and then putting the drawn alloy wire into an aging furnace again for aging to obtain a medium drawn aluminum alloy wire;
s4: small puller
Drawing the medium-drawn aluminum alloy wire in the S3 by a multi-die small drawing machine to prepare an aluminum alloy single wire;
s5: stranding
Stranding the aluminum alloy single wire prepared in the step S4 with a high-elastic wire to form an aluminum alloy conductor;
s6: aging
And (5) placing the aluminum alloy conductor prepared in the step S5 into an aging furnace for aging to prepare the high-torsion-resistant aluminum alloy soft conductor.
3. A flexible conductor according to claim 2, wherein:
the diameter of the aluminum alloy rod produced in step S1 of the method for producing a flexible conductor is 9.5mm or 12.0 mm.
4. A flexible conductor according to claim 2, wherein: the diameter of the large-drawing aluminum alloy wire prepared in the step S2 of the preparation method of the soft conductor is 2.50-3.50 mm, the elongation coefficient in the drawing process is 1.20-1.35, the aging temperature is 270-300 ℃, and the aging time is 3-5 h.
5. A flexible conductor according to claim 2, wherein: the diameter of the medium-drawn aluminum alloy wire prepared in the step S3 of the preparation method of the soft conductor is 0.80-1.50 mm, the elongation coefficient in the drawing process is 1.15-1.30, the aging temperature is 270-300 ℃, and the aging time is 3-5 h.
6. A flexible conductor according to claim 2, wherein: the diameter of the aluminum alloy single wire prepared in the step S4 of the preparation method of the soft conductor is 0.15-0.50 mm, and the elongation coefficient in the stretching process is 1.10-1.25.
7. A flexible conductor according to claim 2, wherein: in the preparation method of the soft conductor, a plurality of aluminum alloy single wires and one or more high-elastic wires are used in the stranding process in the step S5.
8. A flexible conductor according to claim 2, wherein: the high elastic filament in step S5 of the method for manufacturing a flexible conductor is one or more of carbon fiber filament, glass fiber filament, or polypropylene filament.
9. A flexible conductor according to claim 2, wherein: in the twisting step of step S5 of the method for manufacturing a soft conductor, the twisting frequency is one or more twisting, and the twisting mode is regular twisting, irregular twisting or irregular twisting and irregular twisting.
10. A flexible conductor according to claim 2, wherein: the aluminum alloy single wire used in the step S5 of the preparation method of the soft conductor has a diameter of 0.15mm to E0.50mm, tensile strength not less than 115MPa, elongation not less than 15%, and conductor resistivity not more than 0.02800 omega mm at 20 deg.C 2 (ii)/m; the residual rate of strength is more than or equal to 95 percent at 230 ℃ for 1 hour.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360583A (en) * | 2011-10-10 | 2012-02-22 | 安徽欣意电缆有限公司 | Rare-earth aluminum alloy lead wire |
| CN202282182U (en) * | 2011-10-25 | 2012-06-20 | 安徽华通电缆集团有限公司 | Copper-clad aluminum conductor installation electric wire |
| CN103667810A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN105331857A (en) * | 2014-08-08 | 2016-02-17 | 特变电工股份有限公司 | Aluminum alloy rod and preparation method thereof |
| CN106834814A (en) * | 2017-01-17 | 2017-06-13 | 中南大学 | Aluminium alloy conductor and preparation technology and application that a kind of high conductivity and heat heat resistance is anti-corrosion |
| KR101915585B1 (en) * | 2017-04-28 | 2018-11-07 | (주)메탈링크 | High tension and thermal resistant aluminum alloy, aluminum alloy wire and overhead conductor manufactured using the same |
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| CN102360583A (en) * | 2011-10-10 | 2012-02-22 | 安徽欣意电缆有限公司 | Rare-earth aluminum alloy lead wire |
| CN202282182U (en) * | 2011-10-25 | 2012-06-20 | 安徽华通电缆集团有限公司 | Copper-clad aluminum conductor installation electric wire |
| CN103667810A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN105331857A (en) * | 2014-08-08 | 2016-02-17 | 特变电工股份有限公司 | Aluminum alloy rod and preparation method thereof |
| CN106834814A (en) * | 2017-01-17 | 2017-06-13 | 中南大学 | Aluminium alloy conductor and preparation technology and application that a kind of high conductivity and heat heat resistance is anti-corrosion |
| KR101915585B1 (en) * | 2017-04-28 | 2018-11-07 | (주)메탈링크 | High tension and thermal resistant aluminum alloy, aluminum alloy wire and overhead conductor manufactured using the same |
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