CN103578597B - Aluminium alloy power cable alloy conductor and preparation method thereof - Google Patents
Aluminium alloy power cable alloy conductor and preparation method thereof Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 115
- 239000004020 conductor Substances 0.000 title claims abstract description 61
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 41
- 239000000956 alloy Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004411 aluminium Substances 0.000 claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 238000004458 analytical method Methods 0.000 claims description 24
- 238000007670 refining Methods 0.000 claims description 18
- 229910001017 Alperm Inorganic materials 0.000 claims description 8
- 229910000521 B alloy Inorganic materials 0.000 claims description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000005275 alloying Methods 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- DJPURDPSZFLWGC-UHFFFAOYSA-N alumanylidyneborane Chemical compound [Al]#B DJPURDPSZFLWGC-UHFFFAOYSA-N 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009749 continuous casting Methods 0.000 abstract description 6
- 238000000137 annealing Methods 0.000 abstract description 4
- 238000005491 wire drawing Methods 0.000 abstract description 2
- FGUJWQZQKHUJMW-UHFFFAOYSA-N [AlH3].[B] Chemical compound [AlH3].[B] FGUJWQZQKHUJMW-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The present invention relates to a kind of aluminium alloy power cable alloy conductor and preparation method thereof, aluminium alloy power cable alloy conductor main production process is that continuous casting and rolling-extrude molded line-molded line is stranded, in aluminium alloy conductor, each composition (mass percent) controls as follows: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01? wt%, does is B? 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, all the other are aluminium and inevitable impurity, the aluminium alloy conductor adopting this process to produce has electric conductivity excellence, good creep resistance and extensibility, reliability and fail safe that cable is connected with terminal can be improved, simultaneously by wire drawing, the annealing two procedures of extruding the conventional production of aluminium alloy type line procedures replacement together, not only save operation, manufacturing cost of reducing work hours, and the aluminium alloy wire performance adopting this process to produce is uniform and stable, improves product qualified rate.<!--1-->
Description
Technical field
The present invention relates to a kind of power cable conductor, particularly a kind of aluminium alloy power cable alloy conductor and preparation method thereof.
Background technology
Under the prerequisite of identical weight, the conductive capability of aluminium is the twice of copper; Under the prerequisite of identical conduction stream ability, the price of aluminium is 1/6th of copper, and aluminium cable cost performance is far above copper core cable, and therefore, the application of aluminium cable is more and more subject to the attention of industry.Although the technology economy advantage that aluminium cable is larger, due to common electrical aluminium creep-resistant property with extension property is poor, poor high temperature stability, cause its terminal to there is insecurity, thus constrain it and extensively promote.In order to solve conventional aluminium core conductor exist deficiency, for this reason, be developed creep-resistant property good, be connected reliable 8000 series alloys conductor cables to meet market demands with terminal.For manufacturing enterprise, the aluminum alloy conductor cable huge market demand, added value are high, and have complied with the main trend of building a resource-conserving society that country advocates.Meanwhile, for ensureing each stable performance of product, stern challenge is proposed to this product processes.
The aluminum alloy conductor cable aluminium alloy conductor that at present a lot of enterprises produce is the manufacturing process of conventional aluminium conductor, namely by operation productions such as continuous casting and rolling-wire drawing-annealing-stranded, in continuous casting and rolling process, adds appropriate alloying component.Number of patent application is 201010290234.6, name is called: the preparation method that application discloses aluminium alloy conductor of special soft aluminium alloy conductor and preparation method thereof is the steps such as continuous casting and rolling-wire drawing-annealing, but adopt this technique easily to cause annealing uneven, thus cause unstable properties, the problems such as qualification rate is low, and efficiency is low.
People know because the electrical property of aluminum-alloy wire and mechanical performance are restrictions mutually, in order to ensure the mechanical performance of aluminum-alloy wire, and have to sacrifice a part of electrical property.Qualified in order to ensure whole aluminium alloy conductor resistance, people have to be amassed by increase cross-sectional area of conductor reduce conductor resistance, due to cross-sectional area of conductor increase thus add material usage, cost is caused to increase, therefore, how when cross section is constant, ensure that the electrical property of aluminium alloy conductor is consistent with the electrical property of fine aluminium conductor, intensity, creep resistant type and extensibility are better than aluminium conductor, and this still has room for improvement.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency, provide a kind of electric conductivity, creep resistance and good-extensibility, the aluminium alloy power cable that conforming product rate is high is alloy conductor with 8000.
The technical scheme realizing the object of the invention is a kind of aluminium alloy power cable alloy conductor, in aluminium alloy power cable alloy conductor, each element mass percent controls as follows: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, and all the other are aluminium and inevitable impurity.
Above-mentioned aluminium alloy power cable alloy conductor, it is characterized in that: in aluminium alloy power cable alloy conductor, each element mass percent controls as follows: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is (0.03 ~ 0.1) wt%, Fe is (0.40 ~ 0.9) wt%, rare earth element Re is (0.001 ~ 1.0) wt%, and all the other are aluminium and inevitable impurity.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, is characterized in that: preparation technology's flow process comprises:
(1) continuous casting and rolling goes out aluminium alloy rod; (2) aluminium alloy molded line is extruded; (3) finished product of single aluminium alloy wire is formed; Or it is stranded to carry out many aluminium alloy wires, wherein in step (1), the operation of aluminium alloy rod continuous casting and rolling is: (1) aluminium ingot melting;
(2) alloying component configuration; (3) cast; (4) bar is rolled; (5) put away sports equipment.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, is characterized in that: specifically comprise the steps:
(1) sampling of electrician's aluminium ingot is carried out each weight alloy formula that constituent content analysis is determined to add, then electrician's aluminium is put into aluminium ingot smelting furnace and melt;
(2) by each weight alloy formula determined in (1), alfer ingot and aluminum-boron alloy ingot or alfer ingot, aluminum-boron alloy ingot and rare earth alloy ingot are put into aluminium ingot smelting furnace, through uniform stirring, refining degasification, refining temperature is 710 ~ 750 DEG C, refining time is 10 ~ 20 minutes, and then remove the gred, leave standstill, time of repose is 10 ~ 30 minutes, last sample analysis;
(3) cast, cast temperature 680 ~ 730 DEG C;
(4) rolling, enters to roll temperature 460 ~ 520 DEG C, is rolled into aluminium alloy rod;
(5) extrude aluminium alloy wire, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, and extrusion temperature is at 400 ~ 450 DEG C, and compression ratio is 5 ~ 35;
(6) complete single aluminium alloy wire finished product, or it is stranded to carry out many aluminium alloy wires, many aluminium alloy wires are stranded for be twisted into shaping through stranding machine by aluminium alloy wire.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, it is characterized in that: its composition of raw materials electrician aluminium ingot: Al >=99.70wt% in step (1), Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.015wt%, in step (6), when for many aluminium alloy wires stranded time, the stranded number of plies is 1 ~ 4 layer.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, it is characterized in that: sample analysis alloying component in step (2), when analysis result is not for reaching requirement, each element mass percent in alloy conductor is made to meet following condition by adding intermediate alloy ingot: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, all the other aluminium and inevitable impurity.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, it is characterized in that: sample analysis alloying component in step (2), when analysis result is not for reaching requirement, each element mass percent in alloy conductor is made to meet following condition by adding alloy pig: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, and all the other are rare earth element and inevitably impurity and aluminium.
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, is characterized in that: in step (4), the tensile strength of aluminium alloy rod is 110 ~ 140MPa, percentage elongation>=10%, conductor resistance rate≤0.028735 Ω mm during aluminium alloy rod 20 DEG C
2/ m;
The preparation method of above-mentioned aluminium alloy power cable alloy conductor, is characterized in that step (5) adopts Kang Fang expressing technique once to extrude many single lines.Tensile strength>=the 103MPa of aluminium alloy wire in aluminium alloy conductor prepared in step (5), percentage elongation>=10%, conductor resistance rate≤0.028264 Ω mm during aluminium alloy wire 20 DEG C
2/ m, the cross sectional shape of aluminium alloy single line is a kind of in circle, " recessed " shape, " convex " shape, " Z ", " S ", trapezoidal, fan-shaped or watt shape.
The present invention has positive effect: the row aluminium alloy conductor that (1) adopts this process to produce have conduct electricity very well, preferably creep resistance and extensibility, improve reliability and fail safe that cable is connected with terminal; (2) replacing wire drawing, annealing two procedures with extruding aluminium alloy wire operation together, saving operation, manufacturing cost of reducing work hours, improving stability; (the 3 aluminium alloy wire performances adopting this process to produce are uniform and stable, improve product qualified rate; (4) adopt the method aluminium alloy wire molded line size extruded accurate, the product in the various cross section of various shape can be produced.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the process chart of manufacture method of the present invention
Embodiment
(embodiment 1)
According to Fig. 1 technique, detect raw material, select the trade mark to be AL99.85A aluminium ingot 8T, chemical analysis (composition is in table 1) is carried out in sampling, and put into aluminium ingot smelting furnace and melt, add the alfer ingot 400kg that the trade mark is AlFe10, the trade mark is AlB
3aluminum-boron alloy ingot 160kg, through uniform stirring, refining degasification, refining temperature 725 DEG C, refining time 10 minutes, slagging-off, leave standstill, time of repose 15 minutes, sample analysis is (according to the in good time supplementary material of composition analysis result, detect each constituent content of regulation and control, in table 2), then cast, cast temperature 680 DEG C, enter to roll temperature 480 DEG C, be rolled into the aluminium alloy rod of ￠ 15.0mm, extrusion temperature 410 DEG C, the performance of aluminium alloy rod is as table 3, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, shape is a watt shape, cross section compression ratio is 17.7, aluminium alloy wire cross section is 10.0mm
2, the performance of aluminium alloy wire is in table 4, and being twisted into nominal cross with this aluminium alloy wire of same quality through stranding machine is 150mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in table 5.
(embodiment 2)
According to Fig. 1 technique, detect raw material, select the trade mark to be AL99.85A aluminium ingot 8T, chemical analysis (composition is in table 1) is carried out in sampling, and put into aluminium ingot smelting furnace and melt, add the alfer ingot 400kg that the trade mark is AlFe10, the trade mark is AlB
3aluminum-boron alloy ingot 160kg, the trade mark is AlRe
4rare earth alloy ingot 70kg, through uniform stirring, refining degasification, refining temperature 735 DEG C, refining time 10 minutes, slagging-off, leaves standstill, time of repose 10 minutes, sample analysis (according to the in good time supplementary material of composition analysis result, detecting each constituent content of regulation and control, in table 2), then cast, cast temperature 705 DEG C, enters to roll temperature 490 DEG C, is rolled into the aluminium alloy rod of ￠ 15.0mm, the performance of extrusion temperature 420 DEG C of aluminium alloy rods is as table 3, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, and cross section compression ratio is 17.7, and aluminium alloy wire cross section is 10.0mm
2, shape is fan-shaped, and the performance of aluminium alloy wire is in table 4, and being twisted into nominal cross with this aluminium alloy wire of same quality through stranding machine is 150mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in table 5.
(embodiment 3)
According to Fig. 1 technique, detect raw material, select the trade mark to be AL99.70A aluminium ingot 8T, chemical analysis (composition is in table 1) is carried out in sampling, and put into the molten fusing of aluminium ingot melting, add the alfer ingot 170kg that the trade mark is AlFe20, the trade mark is AlB
3aluminum-boron alloy ingot 180kg, the trade mark is AlRe
4rare earth alloy ingot 60kg, through uniform stirring, refining degasification, refining temperature 735 DEG C, refining time 10 minutes, slagging-off, leave standstill, time of repose 15 minutes, sample analysis is (according to the in good time supplementary material of composition analysis result, detect each constituent content of regulation and control, in table 2), then cast, cast temperature 705 DEG C, enter to roll temperature 490 DEG C, be rolled into the aluminium alloy rod of ￠ 15.0mm, extrusion temperature 430 DEG C, the performance of aluminium alloy rod is as table 3, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, shape is " S " cross section compression ratio is 17.7, aluminium alloy wire cross section is 10.0mm
2, the performance of aluminium alloy wire is in table 4, and being twisted into nominal cross with this aluminium alloy wire of same quality through stranding machine is 150mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in table 5.
(embodiment 4)
According to Fig. 1 technique, detect raw material, select the trade mark to be AL99.70A aluminium ingot 8T, chemical analysis (composition is in table 1) is carried out in sampling, and put into aluminium ingot smelting furnace and melt, add the alfer ingot 400kg that the trade mark is AlFe10, the trade mark is AlB
3aluminum-boron alloy ingot 160kg, the trade mark is AlRe
4rare earth alloy ingot 70kg, through uniform stirring, refining degasification, refining temperature 730 DEG C, refining time 20 minutes, slagging-off, leave standstill, time of repose 30 minutes, sample analysis is (according to the in good time supplementary material of composition analysis result, detect each constituent content of regulation and control, in table 2), then cast, cast temperature 750 DEG C, enter to roll temperature 500 DEG C, be rolled into the aluminium alloy rod of ￠ 15.0mm, extrusion temperature 420 DEG C, the performance of aluminium alloy rod is as table 3, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, shape is spill, cross section compression ratio is 17.7, aluminium alloy wire cross section is 10.0mm
2, the performance of aluminium alloy wire is in table 4, and being twisted into nominal cross with this aluminium alloy wire of same quality through stranding machine is 150mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in table 5.
The each composition situation (wt%) of table 1 raw material
| Al | Si | Fe | Cu | Mg | Ca | Cr+V+Mn+Ti | Other | |
| Embodiment 1 | 99.85 | 0.045 | 0.084 | 0.0006 | 0.0008 | 0.0028 | 0.012 | 0.0048 |
| Embodiment 2 | 99.87 | 0.032 | 0.075 | 0.0006 | 0.0009 | 0.0020 | 0.011 | 0.0085 |
| Embodiment 3 | 99.73 | 0.060 | 0.174 | 0.0005 | 0.0007 | 0.0024 | 0.013 | 0.019 |
| Embodiment 4 | 99.76 | 0.054 | 0.095 | 0.0005 | 0.0009 | 0.0026 | 0.013 | 0.074 |
Composition situation (wt%) in table 2 stove
| Al | Si | Fe | B | Re | Cr+V+Mn+Ti | |
| Embodiment 1 | 99.42 | 0.044 | 0.65 | 0.012 | 0 | 0.006 |
| Embodiment 2 | 99.38 | 0.038 | 0.69 | 0.01 | 0.0015 | 0.004 |
| Embodiment 3 | 99.35 | 0.050 | 0.54 | 0.013 | 0.0013 | 0.009 |
| Embodiment 4 | 99.32 | 0.044 | 0.62 | 0.021 | 0.0014 | 0.007 |
Table 3 aluminium alloy rod performance
Table 4 aluminium alloy wire performance comparison
The stranded rear aluminium alloy conductor of table 5 and the linear energy of aluminium alloy single
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the preparation method of aluminium alloy power cable alloy conductor, is characterized in that: specifically comprise the steps:
(1) sampling of electrician's aluminium ingot is carried out each weight alloy formula that constituent content analysis is determined to add, then electrician's aluminium ingot is put into aluminium ingot smelting furnace and melt;
(2) by each weight alloy formula determined in (1), alfer ingot and two kinds, aluminum-boron alloy ingot or alfer ingot, aluminum-boron alloy ingot and rare earth alloy ingot three kinds are put into aluminium ingot smelting furnace, through uniform stirring, refining degasification, refining temperature is 710 ~ 750 DEG C, refining time is 10 ~ 20 minutes, and then remove the gred, leave standstill, time of repose is 10 ~ 30 minutes, last sample analysis;
(3) cast, cast temperature 680 ~ 730 DEG C;
(4) rolling, enters to roll temperature 460 ~ 520 DEG C, is rolled into aluminium alloy rod;
(5) extrude aluminium alloy wire, aluminium alloy rod extrudes aluminium alloy wire through Kang Fang aluminum-extruding machine, and extrusion temperature is at 400 ~ 450 DEG C, and compression ratio is 5 ~ 35;
(6) complete single aluminium alloy wire finished product, or it is stranded to carry out many aluminium alloy wires, many aluminium alloy wires are stranded is that aluminium alloy wire is stranded shaping through stranding machine.
2. the preparation method of aluminium alloy power cable alloy conductor according to claim 1, it is characterized in that: its composition of raw materials electrician aluminium ingot: Al >=99.70wt% in step (1), Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.015wt%, in step (6), when for many aluminium alloy wires stranded time, the stranded number of plies is 1 ~ 4 layer.
3. the preparation method of aluminium alloy power cable alloy conductor according to claim 2, it is characterized in that: sample analysis alloying component in step (2), when analysis result is not for reaching requirement, each element mass percent in alloy conductor is made to meet following condition by adding intermediate alloy ingot: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, all the other aluminium and inevitable impurity.
4. the preparation method of aluminium alloy power cable alloy conductor according to claim 2, it is characterized in that: sample analysis alloying component in step (2), when analysis result is not for reaching requirement, each element mass percent in alloy conductor is made to meet following condition by adding alloy pig: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, and all the other are rare earth element and inevitably impurity and aluminium.
5. the preparation method of aluminium alloy power cable alloy conductor according to claim 4, it is characterized in that: in step (4), the tensile strength of aluminium alloy rod is 110 ~ 140MPa, percentage elongation>=10%, conductor resistance rate≤0.028735 Ω mm during aluminium alloy rod 20 DEG C
2/ m.
6. the preparation method of aluminium alloy power cable alloy conductor according to claim 5, is characterized in that step (5) adopts Kang Fang expressing technique once to extrude many single lines; Tensile strength>=the 103MPa of aluminium alloy wire in aluminium alloy conductor prepared in step (5), percentage elongation>=10%, conductor resistance rate≤0.028264 Ω mm during aluminium alloy wire 20 DEG C
2/ m, the cross sectional shape of aluminium alloy single line is a kind of in circle, " recessed " shape, " convex " shape, " Z ", " S ", trapezoidal, fan-shaped or watt shape.
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| CN103854807B (en) * | 2014-02-26 | 2016-10-19 | 远东电缆有限公司 | A kind of high-conductivity hard aluminum wire and preparation technology thereof |
| CN105154723A (en) * | 2015-07-10 | 2015-12-16 | 贵州塑力线缆有限公司 | High-conductivity creep-resistant aluminum alloy material for aluminum alloy cable wiring terminals |
| CN106363034B (en) * | 2016-08-26 | 2018-11-20 | 远东电缆有限公司 | A kind of highly conductive aluminium single line of intermediate state and its manufacturing method |
| CN111986853A (en) * | 2020-07-31 | 2020-11-24 | 江苏通光强能输电线科技有限公司 | Manufacturing method of aluminum alloy cable molded line stranded conductor |
| CN112951484A (en) * | 2021-02-26 | 2021-06-11 | 安徽阿尔泰克铝业材料科技有限公司 | Aluminum alloy soft conductor for photovoltaic line |
| CN114464349A (en) * | 2022-03-03 | 2022-05-10 | 远东电缆有限公司 | Hollow expanded diameter conductor and preparation method thereof |
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| JPS55125252A (en) * | 1979-03-19 | 1980-09-26 | Furukawa Electric Co Ltd:The | Heat resistant aluminum alloy conductor and manufacture thereof |
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| CN101345098A (en) * | 2008-08-22 | 2009-01-14 | 远东电缆有限公司 | Aluminum conductor for overhead conductor |
| CN101740157A (en) * | 2008-11-20 | 2010-06-16 | 上海中天铝线有限公司 | Aluminium-alloy conductor and manufacture method thereof |
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Application publication date: 20140212 Assignee: Far East New Materials Co.,Ltd. Assignor: FAR EAST CABLE Co.,Ltd. Contract record no.: X2023980042759 Denomination of invention: Alloy conductors for aluminum alloy power cables and their preparation methods Granted publication date: 20151209 License type: Common License Record date: 20230928 |
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