CN103632751B - Carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core and preparation method thereof - Google Patents
Carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core and preparation method thereof Download PDFInfo
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- CN103632751B CN103632751B CN201310664852.6A CN201310664852A CN103632751B CN 103632751 B CN103632751 B CN 103632751B CN 201310664852 A CN201310664852 A CN 201310664852A CN 103632751 B CN103632751 B CN 103632751B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 68
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 64
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 64
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000004411 aluminium Substances 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 6
- 239000011777 magnesium Substances 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 239000011572 manganese Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 239000010936 titanium Substances 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- 238000000498 ball milling Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000001192 hot extrusion Methods 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 29
- 238000012986 modification Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 235000010210 aluminium Nutrition 0.000 description 41
- 229920000049 Carbon (fiber) Polymers 0.000 description 8
- 239000004917 carbon fiber Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000002131 composite material Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a kind of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core and preparation method thereof.The sandwich layer of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is made up of carbon-nanotube enhanced aluminum alloy materials, carbon-nanotube enhanced aluminum alloy materials comprises by weight percentage: carbon nano-tube 1% ~ 8%, magnesium 0.1 ~ 1%, manganese 0.1 ~ 1%, chromium≤0.1%, nickel≤0.1%, titanium≤0.1%, copper≤0.1%, impurity≤0.01%, surplus is aluminium.The present invention prepares high-strength light carbon nano-tube modification aluminum alloy materials by nano modification technology, and make its intensity reach the level of steel, density is only 1/3 of steel, and as load-bearing core, skin more stranded hard-drawn aluminium wire is prepared from.The present invention possesses lightweight, that resistance is little, non magnetic, sag is little characteristic, significantly can reduce transmission line loss, saves energy, increases transmission capacity, reduces transmission tower height, reduces steel use amount, reaches energy-conservation and object that is increase-volume.
Description
Technical field
The present invention relates to transmission of electricity wire, refer to a kind of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core and preparation method thereof particularly.
Background technology
China is vast in territory, and generation assets mainly concentrates on west area, and developed area, namely electric power major consuming areas is located in east.In order to meet the high load capacity need for electricity of developed area, remote, large-capacity power conveying must be carried out.Because transmission line is long, line loss is large, the energy loss of China every year on transmission line is very surprising.Cut-off was to 2012,110 kilovolts, the whole nation and above transmission line length reach 1,070,000 kms, calculate according to grid power transmission rate of electricity loss from transmission line 6.5% in 2012, only China's transmission line energy loss in 2012 will reach 3,048 hundred million kilowatt hours, and direct economic loss is up to 1,829 hundred million yuan.According to State Grid Corporation of China " 12 " planning, 110 kilovolts, the whole nation and above transmission line length will more than 1,330,000 kms to " 12 " latter stage, and along with the growth (estimate the year two thousand twenty end will reach 1,760,000 kms) of transmission line length in " 13 " planning, energy loss can be increasing, and the energy saving requirement of transmission line is very urgent.Meanwhile, although the length of China's transmission line increases with very high ratio, but the development of the continuous expansion of scale of urbanization and process of industrialization causes whole society's need for electricity amount and electricity supply still to there is larger breach, by the restriction of transmission line power delivery capabilities, China's supply of electric power can not meet the quick growth of electricity needs far away.According to statistics display in 2011, China's severe power shortage spread 24 provinces and cities, and national power supply and demand is totally tight slightly, and peak times of power consumption, the whole network maximum power breach was up to 3,000 ten thousand kilowatts.In order to improve transmission line power delivery capabilities, impel national power supply and demand balance, ensure whole society's electricity consumption, transmission line increase-volume is particularly important.Therefore, along with the fast development of national economy, an urgent demand development of new Large Copacity energy-saving wire, meets the demand of energy saving of power transmission line and increase-volume.
The transmission line of present stage generally adopts steel reinforced aluminium conductor as overhead power transmission conducting wire, because of its have that higher conductance and tensile strength, structure are simple, erection and the advantage such as easy to maintenance, circuit cost is low, in transmission line, application has long history.But along with the development of national economy, power load increases year by year, the transmission capacity of conventional steel core aluminum stranded wire is difficult to satisfied large load need for electricity.
In order to adapt to the growth requirement of electrical network, the high-capacity leads such as aluminium twisted wire with carbon fiber composite core and heat-resistant aluminum alloy wire becomes study hotspot in recent years.
Aluminium twisted wire with carbon fiber composite core is based on carbon fiber complex core lightweight, high-strength, resistance to thermal property, can stranded more conduction aluminiums under the condition of same outer diameter, improve wire working temperature simultaneously, and then realize circuit increase-volume, simultaneously, carbon fiber complex core is nonmagnetic substance, can not produce magnetic hysteresis loss and thermal effect, thus can reduce electric energy loss; But because the manufacturing technology of carbon fiber complex core is abroad monopolized for a long time, expensive, its toughness is poor in addition, in transport, construction and maintenance process, very inconvenience, thus limits applying of aluminium twisted wire with carbon fiber composite core.
Heat-resistant aluminum alloy wire mainly possesses excellent heat-resistant quality owing to adding the metallic element such as zirconium, can the working temperature of significantly lifting lead wire, and then reaches the object of circuit increase-volume; But, due to the existence of the metallic elements such as zirconium, its conductance is lower, and along with the lifting of wire operating temperature, resistance increases, line loss is corresponding to be increased, and easily causes the oxidation connecting gold utensil even to damage simultaneously, needs design and process corresponding heat resistance gold utensil to be attached thereto, in addition, during heat-resistant aluminum alloy wire hot operation, sag is comparatively large, needs the height improving shaft tower to match, thus causes the application of heat-resistant aluminum alloy wire to be restricted.
Summary of the invention
Object of the present invention is exactly to overcome the deficiency existing for prior art, provides a kind of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core and preparation method thereof.
For achieving the above object, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core of the present invention, comprises sandwich layer and is coated on the aluminum-wire layer outside sandwich layer, described sandwich layer is made up of carbon-nanotube enhanced aluminum alloy materials, and wherein, described carbon-nanotube enhanced aluminum alloy materials comprises following composition by weight percentage: carbon nano-tube 1% ~ 8%, magnesium 0.1 ~ 1%, manganese 0.1 ~ 1%, chromium≤0.1%, nickel≤0.1%, titanium≤0.1%, copper≤0.1%, other inevitable impurity≤0.01%, surplus is aluminium.
Present invention also offers the preparation method of above-mentioned carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core:
1) by needing the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials to weigh in proportion, for subsequent use;
2) mixing of being prepared burden by mentioned component is put into ball mill and is carried out ball milling, Ball-milling Time 5 ~ 14h, and ball material mass ratio is 15 ~ 25:1, and sizes of balls mass ratio is 1:1 ~ 3, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 540 ~ 620 DEG C, pressure be 6 ~ 14T under vacuum hotpressing 10 ~ 20h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 500 ~ 580 DEG C of heating, then hot extrusions under pressure is 8 ~ 20T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 3 ~ 10mm;
5) by step 4) gained tubing by rolling 6 ~ 13 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 2 ~ 6mm;
6) according to the demand of wire different cross-sectional, at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
The present invention is in step 2) carry out, in ball milling, being also added with grinding aid, described grinding aid is preferably one or more in paraffin, polyethylene glycol, polyvinyl alcohol.The addition of described grinding aid is, adds 0.1 ~ 0.8ml grinding aid by every gram of carbon-nanotube enhanced aluminum alloy materials ingredient composition.
The present invention prepares high-strength light carbon nano-tube modification aluminum alloy materials by nano modification technology, and make its intensity reach the level of steel, density is only 1/3 of steel, and adopts it as load-bearing core, and outer stranded hard-drawn aluminium wire is prepared from.Novel high-strength aluminum stranded wire of aluminum alloy core possesses the characteristics such as lightweight, resistance is little, non magnetic, sag is little, significantly can reduce transmission line loss, saves energy, increase transmission capacity, reduce transmission tower height, reduce steel use amount, reach energy-conservation and object that is increase-volume.
Compared with traditional steel reinforced aluminium conductor, under the condition of same outer diameter, high strength alumin ium alloy core aluminum stranded wire has clear superiority: first, due to the characteristic of load-bearing core high-strength light, wire deadweight can alleviate more than 20%, both span can be increased, also can optimize transmission tower structure, save shaft tower steel use amount; Secondly, the matrix of load-bearing core is aluminium alloy, and its conductance is the several times of steel core, can reduce the resistance more than 10% of wire, avoid magnetic loss, significantly can reduce transmission line loss, can improve again the transmission capacity of wire; Again, the preparation of wire load-bearing core high-strength light nano modification aluminum alloy materials adopts nano modification technology, " pinning " effect that its superhigh intensity plays at grain boundaries by nano material, the recrystallization of matrix grain can be hindered simultaneously, improve the heat resistance of basis material, permission wire uses by load-bearing core good heat resistance at a higher temperature, thus improves the ampacity of wire.
And compared with aluminium twisted wire with carbon fiber composite core, the load-bearing core of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core of the present invention still keeps the high tenacity of alloy matrix aluminum while improving intensity, thus comparatively aluminium twisted wire with carbon fiber composite core advantageously in transportation, installation, maintenance.
Beneficial effect of the present invention: the aluminum stranded wire of aluminum alloy core that the present invention produces, with compared with prismatic wire, quality alleviates greatly, reduces construction and operation expense; Compared with the wire of equal quality, can coated more aluminum steel outside core, effectively improve ampacity and specified tensile strength, meet the efficiency of heavy in section, Large Copacity, long distance power transmission.The present invention has certain plasticity while guarantee tensile strength, therefore, easy and simple to handle, not fragile in transport, installation and maintenance.
Embodiment
In order to explain the present invention better, below in conjunction with specific embodiment, the present invention is described in further detail, but they do not form restriction to the present invention.
Embodiment 1
1) will the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials be needed to weigh for subsequent use as following weight percent: carbon nano-tube 4%, magnesium 0.4%, manganese 0.7%, chromium 0.1%, nickel 0.01%, titanium 0.1%, copper 0.01%, other inevitable impurity≤0.01%, surplus is aluminium;
2) above-mentioned batching is put into ball mill, add paraffin and carry out ball milling, add 0.5ml paraffin by every gram of carbon-nanotube enhanced aluminum alloy materials ingredient composition, Ball-milling Time 12h, rotating speed 600r/min, ball material mass ratio is 15:1, sizes of balls mass ratio is 1:3, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 590 DEG C, pressure be 10T under vacuum hotpressing 15h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 560 DEG C of heating, then hot extrusions under pressure is 15T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 5mm;
5) by step 4) gained tubing by rolling 12 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 3mm;
6) at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
Embodiment 2
1) will the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials be needed to weigh for subsequent use as following weight percent: carbon nano-tube 5%, magnesium 0.6%, manganese 0.4%, chromium 0.08%, nickel 0.01%, titanium 0.09%, copper 0.01%, other inevitable impurity≤0.01%, surplus is aluminium.
2) above-mentioned batching is put into ball mill, add polyethylene glycol and carry out ball milling, add 0.4ml polyethylene glycol by every gram of carbon-nanotube enhanced aluminum alloy materials ingredient composition, Ball-milling Time 12h, rotating speed 600r/min, ball material mass ratio is 20:1, sizes of balls mass ratio is 1:2, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 600 DEG C, pressure be 12T under vacuum hotpressing 10h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 520 DEG C of heating, then hot extrusions under pressure is 18T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 6mm;
5) by step 4) gained tubing by rolling 10 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 2mm;
6) at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
Embodiment 3
1) will the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials be needed to weigh for subsequent use as following weight percent: carbon nano-tube 5%, magnesium 0.8%, manganese 0.5%, chromium 0.08%, nickel 0.01%, titanium 0.08%, copper 0.01%, other inevitable impurity≤0.01%, surplus is aluminium.
2) above-mentioned batching is put into ball mill, add polyvinyl alcohol and carry out ball milling, add 0.6ml polyvinyl alcohol by every gram of carbon-nanotube enhanced aluminum alloy materials ingredient composition, Ball-milling Time 8h, rotating speed 800r/min, ball material mass ratio is 25:1, sizes of balls mass ratio is 1:3, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 610 DEG C, pressure be 8T under vacuum hotpressing 12h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 550 DEG C of heating, then hot extrusions under pressure is 12T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 4mm;
5) by step 4) gained tubing by rolling 13 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 4mm;
6) at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
The carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core made by embodiment 1 ~ 3 and electrician's pure aluminum wire performance comparison, the performance test results is as shown in table 1.
Table 1 the performance test results
As shown in Table 1, the aluminum stranded wire of aluminum alloy core that the present invention produces is compared with electrician's pure aluminum wire, and tensile strength is significantly improved.The present invention has certain plasticity while guarantee tensile strength, therefore, easy and simple to handle, not fragile in transport, installation and maintenance.
Claims (4)
1. a carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core, is characterized in that: it comprises sandwich layer and is coated on the aluminum-wire layer outside sandwich layer, and described sandwich layer is made up of carbon-nanotube enhanced aluminum alloy materials, wherein, described carbon-nanotube enhanced aluminum alloy materials comprises following composition by weight percentage: carbon nano-tube 1% ~ 8%, magnesium 0.1 ~ 1%, manganese 0.1 ~ 1%, chromium≤0.1%, nickel≤0.1%, titanium≤0.1%, copper≤0.1%, other inevitable impurity≤0.01%, surplus is aluminium; Described carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is prepared according to following steps:
1) by needing the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials to weigh in proportion, for subsequent use;
2) mixing of being prepared burden by mentioned component is put into ball mill and is carried out ball milling, Ball-milling Time 5 ~ 14h, and ball material mass ratio is 15 ~ 25:1, and sizes of balls mass ratio is 1:1 ~ 3, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 540 ~ 620 DEG C, pressure be 6 ~ 14T under vacuum hotpressing 10 ~ 20h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 500 ~ 580 DEG C of heating, then hot extrusions under pressure is 8 ~ 20T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 3 ~ 10mm;
5) by step 4) gained tubing by rolling 6 ~ 13 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 2 ~ 6mm;
6) according to the demand of wire different cross-sectional, at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
2. prepare a method for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core as claimed in claim 1, it is characterized in that:
1) by needing the ingredient composition preparing carbon-nanotube enhanced aluminum alloy materials to weigh in proportion, for subsequent use;
2) mixing of being prepared burden by mentioned component is put into ball mill and is carried out ball milling, Ball-milling Time 5 ~ 14h, and ball material mass ratio is 15 ~ 25:1, and sizes of balls mass ratio is 1:1 ~ 3, obtains ball-milled powder;
3) by step 2) gained ball-milled powder temperature be 540 ~ 620 DEG C, pressure be 6 ~ 14T under vacuum hotpressing 10 ~ 20h, obtained carbon-nanotube enhanced aluminum alloy blank;
4) by step 3) gained blank 500 ~ 580 DEG C of heating, then hot extrusions under pressure is 8 ~ 20T, obtain the carbon-nanotube enhanced aluminium alloy pipe that diameter is 3 ~ 10mm;
5) by step 4) gained tubing by rolling 6 ~ 13 passage, the sandwich layer wire rod needed for carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core that to obtain diameter be 2 ~ 6mm;
6) according to the demand of wire different cross-sectional, at sandwich layer outer cladding aluminum steel, carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core is stranding into.
3. the preparation method of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core according to claim 2, is characterized in that: in step 2) carry out, in ball milling, being also added with grinding aid, described grinding aid is one or more in paraffin, polyethylene glycol, polyvinyl alcohol.
4. the preparation method of carbon-nanotube enhanced aluminum stranded wire of aluminum alloy core according to claim 3, is characterized in that: the addition of described grinding aid is, adds 0.1 ~ 0.8ml grinding aid by every gram of carbon-nanotube enhanced aluminum alloy materials ingredient composition.
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| CN106048324A (en) * | 2016-07-13 | 2016-10-26 | 安徽祈艾特电子科技股份有限公司 | Carbon nano tube reinforced aluminum-magnesium composite alloy material for automobile electronic packaging and preparation method of alloy material |
| CN106244952B (en) * | 2016-09-12 | 2017-11-24 | 国家电网公司 | A kind of cable |
| CN106297944B (en) * | 2016-09-12 | 2018-01-05 | 国家电网公司 | A kind of cable core |
| CN106653210B (en) * | 2016-09-12 | 2018-04-10 | 国家电网公司 | A kind of cable |
| CN111462938B (en) * | 2020-04-17 | 2021-09-14 | 珠海蓉胜超微线材有限公司 | Copper-coated carbon nano composite flat wire and preparation method thereof |
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