CN103952601B - A kind of high conductivity heat-resisting aluminium alloy of alkaline including earth metal - Google Patents
A kind of high conductivity heat-resisting aluminium alloy of alkaline including earth metal Download PDFInfo
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000956 alloy Substances 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 14
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052796 boron Inorganic materials 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000004411 aluminium Substances 0.000 claims description 18
- 239000011575 calcium Substances 0.000 claims description 9
- 229910052788 barium Inorganic materials 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 8
- 229910052712 strontium Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 6
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 6
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 230000005611 electricity Effects 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 238000005275 alloying Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000737 Duralumin Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910007948 ZrB2 Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- -1 Boron forms ZrB2 compound Chemical class 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- VWZIXVXBCBBRGP-UHFFFAOYSA-N boron;zirconium Chemical compound B#[Zr]#B VWZIXVXBCBBRGP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention provides the heat-resisting aluminum alloy materials of a kind of alkaline including earth metal, belong to power industry transmission line of electricity aerial condutor technical field.The aluminum alloy materials that the present invention provides is by 0.01～the zirconium of 0.16%, 0.01～the silicon of 0.2%, 0.01～the boron of 0.2%, the ferrum of 0.05 0.15%, 0.01～the alkali earth metal of 4.0%, surplus is aluminum and inevitable impurity composition, and the aluminium alloy conductivity prepared is not less than 61.5%IACS, heat resisting temperature >=120 DEG C, can be used for manufacturing transmission line of electricity aerial condutor.
Description
[technical field]
The present invention relates to a kind of transmission line of electricity aerial condutor material, in particular relate to the high-conductive heat-resistant aluminum of a kind of alkaline including earth metal
Alloy.
[background technology]
Existing steel-cored aluminium strand duralumin conductor material is made, hard aluminum wire used by China's national standard and IEC standard regulation
Conductivity answers >=61%IACS, tensile strength >=158MPa, elongation percentage >=1.7%.Due to the restriction of thermostability, general provision steel
The longtime running temperature of core aluminum stranded wire is 70 DEG C.For expanding transmission system, city net, the improvement project of rural power grids must increase existing steel
The conductor cross-section of core aluminum stranded wire, reconstructs shaft tower, and the transformation of the power network line of resident compact district is difficult to realize.Therefore, make
Replace the capacity-improving conducting wires of same cross-sectional area with the aluminium alloy conductor of heat resistance to strengthen transmission capacity and become existing power network line and change
Make one of technological means conventional in engineering.
Heat-resistant aluminum alloy wire is the extraordinary capacity expansion conducting wire of a kind of function admirable, uses Large Copacity heat-resistant aluminum alloy wire to carry out existing
Circuit extending capacity reformation, reduces as far as possible and does not even change shaft tower, can not only improve the conveying capacity of power network line, moreover it is possible to reduce engineering
Overall cost.Using alumite wire running temperature can be promoted to more than 120 DEG C, current-carrying capacity improves more than 40%.Existing skill
Art used already heat-resistant aluminum alloy wire to improve the transmission capacity of transmission line of electricity, it is thus achieved that good economic benefit.Both at home and abroad
Applied research all show, newly-built circuit use heat-resistant aluminum alloy wire replace same specification common steel-core-aluminium hinge line can save line
Road investment 5%～8%, can increase the transmission capacity of circuit simultaneously.
Along with the increase day by day of electricity needs, it is shared in transmission line construction especially urban network restructuring for heat-resistant aluminum alloy wire
Share will be stepped up.The heat-resisting aluminium alloy that heat-resistant aluminum alloy wire uses, its conductivity is generally 60%IACS (20 DEG C),
Compared with the low 1%IACS of conductivity of steel-cored aluminium strand duralumin conductor material (conductivity 61%IACS (20 DEG C)), cause circuit
Loss increase by 1.5%, this is that current heat-resistant aluminum alloy wire fails the key factor of large-area applications.Therefore, higher load is being ensured
While flow, how to improve the conductivity of heat-resisting aluminium alloy, reduce transmission of electricity line loss, be that current heat-resistant aluminum alloy wire is the most urgent
The technical need cut.
Based on above research and application background, need a kind of aluminium alloy that can be used in manufacturing high-conductive heat-resistant aluminium alloy conductor of research and development badly
Raw material, to solve to improve the temperature resistance problem of aluminium alloy conductor.
[summary of the invention]
For solving the technical barrier because causing conductivity to reduce while improving transmission line of electricity aluminium alloy conductor thermostability and intensity,
The invention provides a kind of high conductivity of transmission line of electricity aerial condutor, high-fire resistance aluminum alloy materials in power industry, logical
Cross control multicomponent alloy content so that the conductivity of prepared wire monofilament is higher than 61.5%IACS (20 DEG C), heat resisting temperature
>=120 DEG C, intensity reaches more than 160MPa, and after 210 DEG C of heating 1 hour, intensity remnants leads more than 90%.
For achieving the above object, the present invention is by the following technical solutions:
The invention provides a kind of conductivity >=61.5%IACS, the aluminium alloy of heat resisting temperature >=120 DEG C alkaline including earth metal, by quality
Percentages, aluminium alloy includes:
Zirconium: 0.01～0.16%, silicon: 0.01～0.2%, boron: 0.01～0.2%, ferrum: 0.05-0.15%, alkaline-earth metal: 0.01～4.0%,
Surplus is aluminum and inevitable impurity.The high conductivity heat-resistant aluminium alloy material of a kind of alkaline including earth metal that the present invention provides, its
Middle alkali earth metal is calcium, barium or strontium.
The high conductivity heat-resisting aluminium alloy of a kind of alkaline including earth metal that the present invention provides, wherein alkali earth metal is calcium, barium or strontium
In the combination in any of one or more elements.
In the high conductivity heat-resisting aluminium alloy of a kind of alkaline including earth metal that the present invention provides, alkali earth metal is calcium, and its content is
0.1～1.0%；Alkali earth metal is barium, and its content is 0.1～1.5%；Alkali earth metal is strontium, and its content is 0.01～3.5%.
The invention provides the manufacture method of a kind of aluminum alloy materials, the high conductivity of the alkaline including earth metal present invention provided is heat-resisting
Aluminum alloy materials joins in the fine aluminium ingot of fusing by each element of proportioning, stirs, at 700～760 DEG C after dehydrogenation, slagging-off
Keep 50～60 minutes.
The invention provides a kind of aluminium alloy and prepare the method for monofilament and be: after mould being heated to 200 DEG C～250 DEG C insulations 20 minutes
Carry out aluminum liquid casting, extruded.
Each alloys producing and mechanism that the present invention uses are as follows:
Zr: the heat resistance of cond aluminium to be improved must try to prevent the minimizing of alloy distortional strain energy, thus prevents aluminium alloy strong
Degree is unlikely to decline because temperature raises.The addition of appropriate zirconium can be obviously improved the heat resistance of aluminium alloy, mainly due to zirconium atom
Radius ratio aluminum atomic radius is bigger, and zirconium is diffused with substitute mode in aluminum, and its diffusion activation energy is high, to sub-crystal grain limit
Boundary separates out trickle Al3Zr phase, and it is difficult to agglomeration, and stability is high, the generation of suppression recrystallization, at a higher temperature
Still can effectively pinning dislocation and crystal boundary, hinder deformation and intracrystalline and Grain Boundary Sliding, make creep resistance be improved, so that aluminum
The heat resistance of alloy is improved.Meanwhile, the addition of zirconium can improve the creep-resistant property of aluminium alloy, enables aluminum alloy at height
Also only have the least creep elongation under temperature, therefore, it is possible to make overhead transmission line spacing between power transmission tower bar increase, and protect
Hold the pendency degree that aluminium alloy conductor is less.
Si: silicon essentially from the silicon dioxide in bauxite or silicate, is one of the most common alloying element of aluminium alloy, silicon
Casting character and the welding mobility of aluminium alloy can be improved, moreover it is possible to enable aluminum alloy to higher mechanical property, due to it in the alloy
Some compounds can be formed, make alloy become heat-treatable strengthened.
The solid solubility of silicon is bigger than ferrum, and when eutectic temperature, (577 DEG C) its solid solubility is 1.650%, also is able to reach 0.05% during room temperature.
It is generally acknowledged that the impurity existed with solid solution state is bigger than the impact separating out state on the impact of conductor resistance rate, pretend as basic impurity element
Silicon big more on the impact of aluminium conductor resistivity than ferrum, become the topmost impurity element affecting aluminium conductor electric conductivity.With
Time, due to the aluminum ore natural conditions of China, the aluminium ingot silicon content produced the most all more than 0.08%, this
The aluminium wire resistivity that Ye Shi China produces always one of cause of fluctuation near IEC standard, therefore we want strictly control
The content of silicon in electrician's aluminium ingot processed.
Fe: containing a certain amount of ferrum in aluminum, be a kind of major impurity in rafifinal.Because the instrument that melting and casting use is all
Being steel or cast iron, ferrum will be brought in aluminum by these instruments, and when remelting waste material, then can be mixed into ferrum and iron filings.Ferrum
Mechanical property to casting aluminum is harmful, because it generally occurs with a thick crystal, or with aluminum-ferrum-silicon compound shape
Formula exists, and they the most all improve the hardness of aluminum, but make the plasticity of aluminum reduce.Current research shows, ferrum can carry
High aluminium conductor intensity, does not significantly reduce its electric conductivity.But also there is data to show in actual production, the Fe/Si in aluminium conductor
Than should be 1.3～1.5, too high, its resistivity can be made significantly to raise, so it should also be noted that controlling the content of ferrum.
Ca, Ba, Sr: the interpolation of alkali earth metal Ca, Ba, Sr can generate small and dispersed with Fe, Si element reaction
Compound, on the one hand replaced out due to Fe, the Si in Al, make Fe, Si form with precipitated phase rather than the shape of solid solution
Formula exists, and will significantly improve the electric conductivity of aluminium alloy, reduces resistivity；On the other hand due to the distribution of precipitated phase fine uniform,
The effect of crystal grain thinning can be played, it is ensured that while aluminum bar elongation percentage is higher, improve the intensity of aluminium alloy.
B: the addition at aluminium conductor zirconium can be obviously improved the heat resistance of alloy, but the addition of zirconium also can be to the electric conductivity of alloy
Have a negative impact, there are some researches show in the aluminium alloy containing zirconium, add appropriate boron, can be on the premise of ensureing alloy thermostability
Improve its electric conductivity.Boron forms ZrB2 compound with the zirconium in aluminium alloy, owing to compound disperses distribution and granule are less, therefore
ZrB2 cannot function as the nucleating center of Al atom, alloy will not be produced Grain Refinement Effect, not increase crystal boundary, thus reduce
The negative effect that the electric conductivity of alloy is produced by zr element.But the aluminium alloy containing zirconium is had certain crystal grain thin by the addition of excess boron
Change effect, but it can make alloy high-temp intensity reduce, and makes alloy thermostability be deteriorated.
Compared with the existing technology, the method have the advantages that
1) due to the fact that and with the addition of alkali earth metal, improve conductivity and the intensity of aluminium alloy；
2) aluminum alloy materials that the present invention provides uses alkali earth metal, instead of the most conventional expensive rare earth element added,
Save cost；
3) use the mode of conventionally fabricated aluminium alloy conductor and prepared wire up to more than 160MPa, 210 DEG C are heated 1 hour
Rear intensity remnants leads more than 90%.
The present invention uses microalloying, controls multiple alloying element content, and uses alkali-earth metal modified, manufactures and has conductivity
The heat-resisting aluminium alloy monofilament of >=61.5%IACS, by replacing rare earth to reduce cost, for preparing high-conductive heat-resistant with alkaline-earth metal
Aluminium alloy conductor provides raw material basis, makes heat-resistant aluminum alloy wire reach to improve transmission capacity, the purpose of reduction transmission line loss,
Thus meet large capacity transmission circuit and the construction demand of city extending capacity reformation.The present invention provide technical scheme without heat treatment,
Save cost；The present invention is by the dispersion-strengtherning between alloy, and prepared wire conductivity is high, it is possible to reduce the damage of transmission line of electricity
Consumption.
[detailed description of the invention]
All embodiments are all to use existing smelting and extrusion equipment, carry out according to the step above described:
Embodiment 1
Aluminum alloy materials, component proportion is shown in Table 1.
Table 1 constituent content proportioning
| Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 | Sample 7 | |
| Zr | 0.08% | 0.07% | 0.15% | 0.04% | 0.53% | 0.6% | 0.07% |
| Si | 0.03% | 0.1% | 0.05% | 0.04% | 0.07% | 0.09% | 0.06% |
| B | 0.05% | 0.15% | 0.08% | 0.03% | 0.02% | 0.01% | 0.06% |
| Fe | 0.05% | 0.12% | 0.07% | 0.06% | 0.09% | 0.13% | 0.08% |
| Ca | 0.45% | 0.45% | 0.85% | -- | 1.0% | -- | -- |
| Sr | 1.3% | 3% | -- | 1.5% | -- | 1.2% | -- |
| Ba | -- | -- | 0.3% | 0.4% | -- | -- | 2.4% |
| Al | Surplus | Surplus | Surplus | Surplus | Surplus | Surplus | Surplus |
Embodiment 2 prepares aluminium alloy monofilament
Purity is the fine aluminium ingot fusing of 99.7%, adds each alloying element, makes their final content as it appears from the above, alloying element
It is to add with the form of intermediate alloy.Use aluminum anodizing agent that aluminum liquid carries out dehydrogenation, slagging-off carries out refine, and uses blender
Being stirred aluminum liquid, make alloying element full and uniformization, alloying temperature is 700 DEG C～760 DEG C, keeps 50～60 minutes；
Cylindrical mild steel mould is heated, prevents mold temperature and temperature of aluminum liquid from having big difference to cause in aluminum liquid casting cycle and cause
Shrinkage cavity, mould is heated to 200 DEG C～250 DEG C and is incubated 20 minutes, then carries out aluminum liquid casting, be cast into the post of Ф 80～200mm
Ingot, is finally squeezed into the round aluminum bar of Ф 9.5mm.Use conventional aluminium monofilament preparation technology, by extruder, aluminium alloy rod is entered
Row extruding, the pole stock that will be extruded into, join mould successively, high speed wiredrawing bench carries out cold-drawn wire.Survey after heating 1 hour at 210 DEG C
Examination intensity remnants leads.The aluminium alloy single filament test preparing each sample the results are shown in Table 2.
Table 2 each sample test result
| Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 | Sample 7 | |
| Conductivity (IACS) | 61.54% | 61.51% | 61.60% | 61.20% | 61.22% | 61.35% | 61.40% |
| Hot strength (MPa) | 161 | 165 | 162 | 164 | 163 | 167 | 162 |
| Heat resisting temperature (DEG C) | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
| Elongation percentage (%) | 2.0 | 2.1 | 2.0 | 2.1 | 2.1 | 2.0 | 2.0 |
| Intensity remnants leads | ＞ 90% | ＞ 90% | ＞ 90% | ＞ 90% | ＞ 90% | ＞ 90% | ＞ 90% |
Embodiment 3-purity is the fine aluminium ingot of 99.7%, adds each alloying element, makes their final content as it appears from the above, alloy
Element is to add with the form of intermediate alloy.The Aluminum alloy round bar of a diameter of 9.5mm is formed through casting.Use conventional aluminium monofilament
Preparation technology, is extruded aluminium alloy rod by extruder, the pole stock that will be extruded into, and joins mould successively, enterprising at high speed wiredrawing bench
Row cold-drawn wire, conductivity is 61.60%IACS, and test intensity is 162MPa, at 210 DEG C be incubated 1 hour, more than former by force
The 90% of degree.
Claims (6)
1. conductivity >=61.5%IACS, the aluminium alloy of heat resisting temperature >=120 DEG C alkaline including earth metal, it is characterised in that: press
Mass percent, described aluminium alloy includes:
Zirconium: 0.01～0.16%, silicon: 0.01～0.2%, boron: 0.01～0.2%, ferrum: 0.05-0.15%, alkaline-earth metal: 0.3～4.0%,
Surplus is aluminum and inevitable impurity；
Described alkali earth metal is the combination in any of one or more elements in calcium, barium or strontium.
The high conductivity heat-resisting aluminium alloy of a kind of alkaline including earth metal the most as claimed in claim 1, it is characterised in that: described alkaline earth
Metallic element is calcium；The content of described calcium is 0.45～1.0%.
The high conductivity heat-resisting aluminium alloy of a kind of alkaline including earth metal the most as claimed in claim 1, it is characterised in that: described alkaline earth
Metallic element is barium；The content of described barium is 0.3～1.5%.
The high conductivity heat-resisting aluminium alloy of a kind of alkaline including earth metal the most as claimed in claim 1, it is characterised in that: described alkaline earth
Metallic element is strontium；The content of described strontium is 1.2～3.5%.
5. the manufacture method of an aluminium alloy as claimed in claim 1, it is characterised in that: described method is: by described each unit
Element joins in the fine aluminium ingot of fusing, stirs, keep 50～60 minutes at 700～760 DEG C after dehydrogenation, slagging-off.
6. one kind utilizes the method that monofilament prepared by alloy as claimed in claim 1, it is characterised in that: described method is:
Aluminum liquid casting is carried out after mould being heated to 200 DEG C～250 DEG C insulations 20 minutes, extruded.
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| CN107447135B (en) * | 2017-08-30 | 2020-07-17 | 中南大学 | Al-Yb-B conductive aluminum alloy and preparation method and application thereof |
| CN110726679A (en) * | 2019-09-26 | 2020-01-24 | 广西电网有限责任公司电力科学研究院 | Method for rapidly judging linear performance of hard aluminum overhead transmission line |
| CN113957301B (en) * | 2021-10-28 | 2022-11-08 | 全球能源互联网研究院有限公司 | Aluminum alloy monofilament and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007302988A (en) * | 2006-05-15 | 2007-11-22 | Sumitomo Electric Ind Ltd | High purity aluminum wire and its production method |
| CN102363849A (en) * | 2011-10-26 | 2012-02-29 | 华北电力大学 | Large-capacity non-heat treated high-conductivity aluminum alloy conductive material |
| CN103045915A (en) * | 2012-12-14 | 2013-04-17 | 国网智能电网研究院 | High conductivity moderately strong heat-resistant aluminum alloy monofilament and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007302988A (en) * | 2006-05-15 | 2007-11-22 | Sumitomo Electric Ind Ltd | High purity aluminum wire and its production method |
| CN102363849A (en) * | 2011-10-26 | 2012-02-29 | 华北电力大学 | Large-capacity non-heat treated high-conductivity aluminum alloy conductive material |
| CN103045915A (en) * | 2012-12-14 | 2013-04-17 | 国网智能电网研究院 | High conductivity moderately strong heat-resistant aluminum alloy monofilament and preparation method thereof |
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