CN103578597A - Alloy conductor for aluminum alloy power cables and preparation method thereof - Google Patents
Alloy conductor for aluminum alloy power cables and preparation method thereof Download PDFInfo
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- CN103578597A CN103578597A CN201210251544.6A CN201210251544A CN103578597A CN 103578597 A CN103578597 A CN 103578597A CN 201210251544 A CN201210251544 A CN 201210251544A CN 103578597 A CN103578597 A CN 103578597A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 123
- 239000004020 conductor Substances 0.000 title claims abstract description 66
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 55
- 239000000956 alloy Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 238000009749 continuous casting Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 37
- 238000004458 analytical method Methods 0.000 claims description 24
- 238000007670 refining Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 9
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 229910001017 Alperm Inorganic materials 0.000 claims description 6
- 229910000521 B alloy 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
- 238000005266 casting Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- DJPURDPSZFLWGC-UHFFFAOYSA-N alumanylidyneborane Chemical compound [Al]#B DJPURDPSZFLWGC-UHFFFAOYSA-N 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 238000004519 manufacturing process 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
- 239000000155 melt Substances 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
- 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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 invention relates to an alloy conductor for aluminum alloy power cables and a preparation method thereof. The preparation method of the alloy conductor for aluminum alloy power cables mainly comprises the steps of continuous casting and rolling, molded line extruding and molded line stranding. The alloy conductor comprises the following components by mass percent: not more than 0.07wt% of Si, not more than 0.01wt% of Cr plus V plus Mn plus Ti, 0.03-0.1 wt% of B and 0.40-0.9wt% of Fe, with the balance being aluminum and unavoidable impurities. The alloy conductor manufactured by the process method has excellent conductivity and good creep resistance and extensibility and can improve reliability and safety of connection between a cable and a terminal. Wire drawing and annealing processes in conventional production are replaced by an aluminum alloy molded line extruding process, which not only reduces the number of processes, but also reduces labor hours and manufacturing cost. Moreover, an aluminum alloy wire manufactured by the process method has uniform and stable performance, and the process method improves the rate of qualified finished products.
Description
Technical field
The present invention relates to a kind of power cable conductor, particularly alloy conductor and preparation method thereof for a kind of aluminium alloy power cable.
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 the sixth 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 electrician's aluminium creep-resistant property with extension property is poor, poor high temperature stability, causes its terminal to have insecurity, extensively promotes thereby restricted it.The deficiency existing in order to solve conventional aluminium core conductor, for this reason, people developed creep-resistant property good, be connected reliable 8000 series alloys conductor cables with terminal and meet market demands.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 guaranteeing each stable performance of product, this product processes has been proposed to stern challenge.
The manufacturing process that the aluminum alloy conductor cable that at present a lot of enterprises produce is conventional aluminium conductor with aluminium alloy conductor, produces by operations such as continuous casting and rolling-wire drawing-annealing-stranded, adds appropriate alloy composition in continuous casting and rolling process.Number of patent application is 201010290234.6, name is called: the Patent Application Publication of special soft aluminium alloy conductor and preparation method thereof the preparation method of aluminium alloy conductor be continuous casting and rolling-wire drawing-steps such as annealing, yet adopt this technique easily to cause annealing inhomogeneous, thereby 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 guarantee the mechanical performance of aluminum-alloy wire, and have to sacrifice a part of electrical property.Qualified in order to guarantee whole aluminium alloy conductor resistance, people have to amass to reduce conductor resistance by increasing cross-sectional area of conductor, because thereby the increase of cross-sectional area of conductor has increased material usage, cause cost to increase, therefore,, the in the situation that of how constant in cross section, guarantee 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, a kind of electric conductivity, creep resistance and good-extensibility are provided, the aluminium alloy power cable that conforming product rate is high is alloy conductor with 8000.
The technical scheme that realizes the object of the invention is a kind of aluminium alloy power cable alloy conductor, aluminium alloy power cable is controlled as follows with each element mass percent in alloy conductor: 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: aluminium alloy power cable is controlled as follows with each element mass percent in alloy conductor: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, 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 alloy conductor for above-mentioned aluminium alloy power cable, is characterized in that: preparation technology's flow process comprises: (1) continuous casting and rolling goes out aluminium alloy rod; (2) extrude aluminium alloy molded line; (3) form the finished product of single aluminium alloy wire; 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) alloy composition configuration; (3) casting; (4) roll bar; (5) put away sports equipment.
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, is characterized in that: specifically comprise the steps:
(1) sampling of electrician's aluminium ingot is carried out to constituent content analysis and determine each weight alloy formula that needs interpolation, then electrician's aluminium is put into aluminium ingot smelting furnace and melt;
(2) by each weight alloy formula of determining in (1), by alfer ingot and aluminum-boron alloy ingot and or rare earth alloy ingot put into aluminium ingot smelting furnace, through uniform stirring, refining degasification, refining temperature is 710 ~ 750 ℃, refining time is 10 ~ 20 minutes, and then slagging-off, standing, time of repose is 10 ~ 30 minutes, last sample analysis;
(3) casting, 680 ~ 730 ℃ of cast temperatures;
(4) rolling, enters to roll 460 ~ 520 ℃ of temperature, is rolled into aluminium alloy rod;
(5) extrude aluminium alloy wire, aluminium alloy rod is extruded aluminium alloy wire through Kang Fang aluminum-extruding machine, and extrusion temperature is at 400～450 ℃, 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 aluminium alloy wire is twisted into moulding through stranding machine.
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, it is characterized in that: its composition of raw materials electrician aluminium ingot in step (1): Al >=99.70 wt%, Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.015wt%, in step (6), when being many aluminium alloy wires when stranded, the stranded number of plies is 1～4 layer.
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, is characterized in that: sample analysis in step (2)
alloy composition, when analysis result is not when reaching requirement, by adding intermediate alloy ingot, make each element mass percent in alloy conductor meet following condition: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, all the other aluminium and inevitably impurity.
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, is characterized in that: sample analysis in step (2)
alloy composition, when analysis result is not when reaching requirement, by adding alloy pig, make each element mass percent in alloy conductor meet following condition: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, B is 0.03 ~ 0.1wt%, Fe is 0.40 ~ 0.9wt%, and all the other are rare earth element and inevitable impurity and aluminium.
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, 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 20 ℃ of aluminium alloy rods
2/ m;
The preparation method of alloy conductor for above-mentioned aluminium alloy power cable, 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 prepared aluminium alloy conductor in step (5), percentage elongation>=10%, conductor resistance rate≤0.028264 Ω mm during 20 ℃ of aluminium alloy wires
2the cross sectional shape of/m aluminium alloy single line is a kind of in circle, " recessed " shape, " protruding " 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, creep resistance preferably and extensibility, improved to having improved reliability and fail safe that cable is connected with terminal; (2) with extruding together aluminium alloy wire operation, replace wire drawing, annealing two procedures, save operation, the manufacturing cost of reducing work hours, improves stability; (the 3 aluminium alloy wire performances that adopt this process to produce are uniform and stable, improve product qualified rate; (4) adopt the method aluminium alloy wire molded line size of extruding accurate, can produce the product in the various cross sections of various shapes.
Accompanying drawing explanation
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is the process chart of manufacture method of the present invention
Embodiment
(embodiment 1)
According to Fig. 1 technique, detect raw material, selecting the trade mark is AL99.85A aluminium ingot 8T, and chemical analysis (composition is in Table 1) is carried out in sampling, puts into aluminium ingot smelting furnace and melts, and adding the trade mark is the alfer ingot 400kg of AlFe10, and the trade mark is AlB
3aluminum-boron alloy ingot 160kg, through uniform stirring, refining degasification, 725 ℃ of refining temperatures, refining time 10 minutes, slagging-off, standing, time of repose 15 minutes, sample analysis is (according to the in good time supplementary material of analysis of components result, detect each constituent content of regulation and control, in Table 2), then cast, 680 ℃ of cast temperatures, enter to roll 480 ℃ of temperature, be rolled into the aluminium alloy rod of ￠ 15.0mm, 410 ℃ of extrusion temperatures, the performance of aluminium alloy rod is as table 3, aluminium alloy rod is extruded aluminium alloy wire through Kang Fang aluminum-extruding machine, be shaped as 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 using this aluminium alloy wire of same quality to be twisted into nominal cross through stranding machine is 150 mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in Table 5.
(embodiment 2)
According to Fig. 1 technique, detect raw material, selecting the trade mark is AL99.85A aluminium ingot 8T, and chemical analysis (composition is in Table 1) is carried out in sampling, puts into aluminium ingot smelting furnace and melts, and adding the trade mark is the alfer ingot 400kg of AlFe10, and 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, 735 ℃ of refining temperatures, refining time 10 minutes, slagging-off, standing, time of repose 10 minutes, sample analysis (according to the in good time supplementary material of analysis of components result, detecting each constituent content of regulation and control, in Table 2), then cast, 705 ℃ of cast temperatures, enter to roll 490 ℃ of temperature, are rolled into the aluminium alloy rod of ￠ 15.0mm, the performance of 420 ℃ of aluminium alloy rods of extrusion temperature is as table 3, aluminium alloy rod is extruded 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, be shaped as fan-shapedly, the performance of aluminium alloy wire is in Table 4, and using this aluminium alloy wire of same quality to be twisted into nominal cross through stranding machine is 150 mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in Table 5.
(embodiment 3)
According to Fig. 1 technique, detect raw material, selecting the trade mark is AL99.70A aluminium ingot 8T, and chemical analysis (composition is in Table 1) is carried out in sampling, puts into the molten fusing of aluminium ingot melting, and adding the trade mark is the alfer ingot 170kg of AlFe20, and 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, 735 ℃ of refining temperatures, refining time 10 minutes, slagging-off, standing, time of repose 15 minutes, sample analysis is (according to the in good time supplementary material of analysis of components result, detect each constituent content of regulation and control, in Table 2), then cast, 705 ℃ of cast temperatures, enter to roll 490 ℃ of temperature, be rolled into the aluminium alloy rod of ￠ 15.0mm, 430 ℃ of extrusion temperatures, the performance of aluminium alloy rod is as table 3, aluminium alloy rod is extruded aluminium alloy wire through Kang Fang aluminum-extruding machine, being shaped as " 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 using this aluminium alloy wire of same quality to be twisted into nominal cross through stranding machine is 150 mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in Table 5.
(embodiment 4)
According to Fig. 1 technique, detect raw material, selecting the trade mark is AL99.70A aluminium ingot 8T, and chemical analysis (composition is in Table 1) is carried out in sampling, puts into aluminium ingot smelting furnace and melts, and adding the trade mark is the alfer ingot 400kg of AlFe10, and 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, 730 ℃ of refining temperatures, refining time 20 minutes, slagging-off, standing, time of repose 30 minutes, sample analysis is (according to the in good time supplementary material of analysis of components result, detect each constituent content of regulation and control, in Table 2), then cast, 750 ℃ of cast temperatures, enter to roll 500 ℃ of temperature, be rolled into the aluminium alloy rod of ￠ 15.0mm, 420 ℃ of extrusion temperatures, the performance of aluminium alloy rod is as table 3, aluminium alloy rod is extruded aluminium alloy wire through Kang Fang aluminum-extruding machine, be shaped as 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 using this aluminium alloy wire of same quality to be twisted into nominal cross through stranding machine is 150 mm
2aluminium alloy conductor, the performance of aluminium alloy conductor is in Table 5.
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 linear energy of the stranded rear aluminium alloy conductor of table 5 and aluminium alloy single
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is 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 modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. alloy conductor and preparation method thereof for an aluminium alloy power cable, it is characterized in that: aluminium alloy power cable is controlled as follows with each element mass percent in alloy conductor: 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.
2. aluminium alloy power cable alloy conductor according to claim 1, it is characterized in that: aluminium alloy power cable is controlled as follows with each element mass percent in alloy conductor: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, 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.
3. the preparation method of alloy conductor for aluminium alloy power cable as claimed in claim 1 or 2, is characterized in that: preparation technology's flow process comprises: (1) continuous casting and rolling goes out aluminium alloy rod; (2) extrude aluminium alloy molded line; (3) form the finished product of single aluminium alloy wire; 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) alloy composition configuration; (3) casting; (4) roll bar; (5) put away sports equipment.
4. the preparation method of alloy conductor for aluminium alloy power cable according to claim 3, is characterized in that: specifically comprise the steps:
(1) sampling of electrician's aluminium ingot is carried out to constituent content analysis and determine each weight alloy formula that needs interpolation, then electrician's aluminium is put into aluminium ingot smelting furnace and melt;
(2) by each weight alloy formula of determining in (1), by alfer ingot and aluminum-boron alloy ingot and or rare earth alloy ingot put into aluminium ingot smelting furnace, through uniform stirring, refining degasification, refining temperature is 710 ~ 750 ℃, refining time is 10 ~ 20 minutes, and then slagging-off, standing, time of repose is 10 ~ 30 minutes, last sample analysis;
(3) casting, 680 ~ 730 ℃ of cast temperatures;
(4) rolling, enters to roll 460 ~ 520 ℃ of temperature, is rolled into aluminium alloy rod;
(5) extrude aluminium alloy wire, aluminium alloy rod is extruded aluminium alloy wire through Kang Fang aluminum-extruding machine, and extrusion temperature is at 400～450 ℃, 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 aluminium alloy wire is twisted into moulding through stranding machine.
5. the preparation method of alloy conductor for aluminium alloy power cable according to claim 4, it is characterized in that: its composition of raw materials electrician aluminium ingot in step (1): Al >=99.70 wt%, Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.015wt%, in step (6), when being many aluminium alloy wires when stranded, the stranded number of plies is 1～4 layer.
6. the preparation method of alloy conductor for aluminium alloy power cable according to claim 5, it is characterized in that: sample analysis alloy composition in step (2), when analysis result is not when reaching requirement, by adding intermediate alloy ingot, make each element mass percent in alloy conductor meet following condition: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, B is 0.03 ~ 0.1wt%, and Fe is 0.40 ~ 0.9wt%, all the other aluminium and inevitably impurity.
7. the preparation method of alloy conductor for aluminium alloy power cable according to claim 5, it is characterized in that: sample analysis alloy composition in step (2), when analysis result is not when reaching requirement, by adding alloy pig, make each element mass percent in alloy conductor meet following condition: Si≤0.07wt%, (Cr+V+Mn+Ti)≤0.01 wt%, B is 0.03 ~ 0.1wt%, and Fe is 0.40 ~ 0.9wt%, and all the other are rare earth element and inevitable impurity and aluminium.
8. the preparation method of alloy conductor for aluminium alloy power cable according to claim 5, 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 20 ℃ of aluminium alloy rods
2/ m.
9. the preparation method of alloy conductor for aluminium alloy power cable 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 prepared aluminium alloy conductor in step (5), percentage elongation>=10%, conductor resistance rate≤0.028264 Ω mm during 20 ℃ of aluminium alloy wires
2the cross sectional shape of/m aluminium alloy single line is a kind of in circle, " recessed " shape, " protruding " shape, " Z ", " S ", trapezoidal, fan-shaped or watt shape.
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| 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 |
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Address after: No. 8, Gaocheng Town, Yixing city of Jiangsu Province, Wuxi City, the Far East Avenue 214257 Applicant after: FAR EAST CABLE Co.,Ltd. Applicant after: NEW FAR EAST CABLE Co.,Ltd. Applicant after: FAR EAST COMPOSITE TECHNOLOGY Co.,Ltd. Address before: No. 8, Gaocheng Town, Yixing city of Jiangsu Province, Wuxi City, the Far East Avenue 214257 Applicant before: FAR EAST CABLE Co.,Ltd. Applicant before: NEW FAR EAST CABLE Co.,Ltd. Applicant before: FAR EAST COMPOSITE TECHNOLOGY Co.,Ltd. |
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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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