CN101620894A - Conducting wire with aluminum base carbon fiber composite material core - Google Patents
Conducting wire with aluminum base carbon fiber composite material core Download PDFInfo
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- CN101620894A CN101620894A CN200910062744A CN200910062744A CN101620894A CN 101620894 A CN101620894 A CN 101620894A CN 200910062744 A CN200910062744 A CN 200910062744A CN 200910062744 A CN200910062744 A CN 200910062744A CN 101620894 A CN101620894 A CN 101620894A
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- carbon fiber
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- conducting wire
- fiber composite
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Abstract
The invention relates to a conducting wire with an aluminum base carbon fiber composite material core, which is a novel overhead conducting wire with higher conductivity and intensity, high temperature resistance and no bamboo joint phenomena and can utilize the prior tower equipment to realize line compatibilization within short time. An aluminum base carbon fiber composite material is used as an inner core of the conducting wire to replace a resin base carbon fiber composite material inner core of an ACCC conducting wire, and the outer layer of the composite inner core is hinged with an alloy conductor. The invention prepares the conducting wire composite inner core with more excellent performance than the resin base composite material by utilizing the characteristic that metal has higher intensity, heat resistance, heat and electricity conductivity and anti-aging performance than the resin base. A series of surface processing measures of high-temperature firing for removing rubber, oxidation, sensitization and activation of ammonium persulphate, plating copper on the surfaces of fibers, and the like are taken on carbon fibers, thereby solving the problems of bad moistening of an aluminum fusant and the carbon fibers and low interfacial strength so as to prepare the conducting wire with an aluminum base carbon fiber composite material core.
Description
Technical field
The present invention relates to a kind of overhead transmission line lead, be specifically related to a kind of conducting wire with aluminum base carbon fiber composite material core, belong to aerial condutor and make the field.
Background technology
Overhead power transmission conducting wire occupies very consequence as the carrier of transmission of electricity power in transmission line.For a long time, aerial condutor mainly uses steel reinforced aluminium conductor.The fast development of China's industrial and agricultural production in recent years, the power circuit of some areas has not caught up with the needs of development, be badly in need of transforming, but, make and how to utilize effective corridor resource to improve the big problem that transmission line capability becomes power construction based on cost of investment and the constraint of investment time.Methods such as raising electric pressure, transformation circuit or use large-section lead for general employing, all may solve transient problems, but the employing of these methods has also brought a lot of problems, as changing original shaft tower equipment, improve insulation level, newly levy the soil and will studying feasible embodiment.These problems are not only brought huge input economically, and often also do not satisfy the active demand of circuit increase-volume in time.Therefore, explore new lead line style, be China electric power scientific worker's continuous pursuit with efficient low-consume ground transmission electric energy.
U.S. CTC company has released model in 2003 be the composite material synthesising wire of ACCC, and its heart yearn is the single plug that is mixed and made into by carbon fiber and glass fibre, and outer and adjacent outer aluminum steel thigh is the trapezoid cross section.This novel conductive wire is compared with conventional wires has in light weight, advantages such as intensity is big, conductivity is high, coefficient of linear expansion is little, corrosion-resistant long service life.China is at least 500 kilometers in the ACCC lead of import CTC company, and the ACCC lead can only import at present, and its price is about 3 times of plain conductor, has so just increased the cost of electric network reconstruction.The ACCC lead is undoubtedly a kind of novel overhead power transmission conducting wire of function admirable on the whole, but the weakness that himself is also arranged, the shearing strength of carbon fiber core is very low, elongation is little, stress strain curve is close to straight line, does not have the plasticity platform, in this sense, carbon fiber core is a kind of fragile material, and lead breaks when bearing bending stress easily.And cause the inner core of ACCC lead when high temperature deformation, to produce thermal stress because the carbon fiber and the glass fibre coefficient of expansion differ nearly 10 times, residual deformation takes place when reducing to normal temperature " ring " phenomenon occurs.
Summary of the invention
The present invention be directed to the defective that ACCC composite material synthesising wire exists, a kind of conducting wire with aluminum base carbon fiber composite material core is provided, it is that conductance is higher, intensity is bigger, more high temperature resistant and do not have the novel aerial condutor of " ring " phenomenon, and utilize existing shaft tower equipment can realize the transformation of electrical network at short notice.
Technical scheme of the present invention is: a kind of conducting wire with aluminum base carbon fiber composite material core, comprise lead inner core and outer field aluminium alloy conductor thereof, aluminium alloy conductor hinge in around the lead inner core, it is characterized in that: adopt aluminum base carbon fiber composite material as the lead inner core, wherein the surface of carbon fiber is coated with copper coating, carbon fiber volume percentage is that 1-2%, copper percent by volume are 1.2-1.5% in the lead inner core, and all the other are Raw Aluminium.
Aforesaid conducting wire with aluminum base carbon fiber composite material core is characterized in that: carbon fiber volume percentage is 2% in the lead inner core, the copper percent by volume is 1.5%, and all the other are Raw Aluminium.
Aforesaid conducting wire with aluminum base carbon fiber composite material core is characterized in that: the lead total sectional area is 349.4mm
2-1469.5mm
2, lead inner core sectional area is 39.8mm
2-87.7mm
2
The invention has the beneficial effects as follows: the present invention adopts aluminum base carbon fiber composite material as the lead inner core, replaces ACCC lead resin-based carbon fiber composite inner core, compares with the ACCC lead, and the present invention has some following features:
1, there is not " ring " phenomenon.It is lower to compare the glass fibre elongation owing to metal is aluminium base when high temperature, differs not too big with the carbon fiber elongation, " ring " phenomenon therefore can not occur.
2, conductivity height.Because metal is aluminium base to have higher conductivity than resin matrix, so lead of the present invention has than the better electric conductivity of ACCC lead.
3, flexural strength is big.Because the aluminium base mechanical property that has higher intensity and a metallic aluminium than resin matrix of metal is isotropic, therefore has higher flexural strength with aluminum base carbon fiber composite material, is difficult for when bearing bending stress breaking.
4, tensile strength is big.Because metal is aluminium base to have higher mechanical strength than resin matrix, so lead of the present invention has the tensile strength higher than ACCC lead.The tensile strength of aluminum base carbon fiber composite material is 1.93 times of general tensile strength of wire, is 1.7 times of high-tensile steel wires.Can improve the span between bar, the tower like this, reduce engineering cost.
5, more high temperature resistant.Because metal is aluminium base more high temperature resistant than resin matrix, so lead of the present invention has the thermal endurance higher than ACCC lead.
Description of drawings
Fig. 1 embodiment of the invention conducting wire with aluminum base carbon fiber composite material core structural representation.
Embodiment
The present invention is described further below in conjunction with drawings and Examples.
The explanation of mark among Fig. 1: 1-aluminum base carbon fiber composite core, 2-aluminium alloy conductor.
As shown in Figure 1, the embodiment of the invention is made up of aluminum base carbon fiber composite core 1 and outer aluminium alloy conductor 2, and aluminium alloy conductor 2 hinge in around the aluminum base carbon fiber composite core 1 that aluminium alloy conductor 2 cross sections can be trapezoidal or circular or other shape; Lead total sectional area: 349.4mm
2-1469.5mm
2, aluminum base carbon fiber composite core 1 sectional area: 39.8mm
2-87.7mm
2, in aluminum base carbon fiber composite core 1, carbon fiber volume percentage accounts for 1-2%, and the copper percent by volume accounts for 1.2-1.5%, and all the other are Raw Aluminium, and wherein the surface of carbon fiber is coated with copper coating.
The embodiment of the invention utilizes metal to have the characteristics of high strength, high-fire resistance, excellent electrical and thermal conductivity and performance such as anti-aging, and as matrix, high-performance carbon fibre is the composite core of the lead that strengthens body exploitation excellent performance with the traditional epoxy resin of aluminium substitution.With aluminum base carbon fiber composite core and the stranded aluminum base carbon fiber compound wire that just obtained of aluminium alloy conductor that obtains.Different according to carbon fiber and metallic aluminium basigamy ratio can be prepared the composite core with different mechanical properties, as density, tensile strength, modulus of elasticity etc.
Because the wetability of aluminum melt and carbon fiber is not fine, therefore at first preliminary treatment is carried out on the surface of carbon fiber, adopt high temperature sintering to remove glue and ammonium persulfate oxidation, remove organic glued membrane of carbon fiber surface, increase the specific area of carbon fiber, improve the hydrophobicity of carbon fiber, improve its surface roughness, and carbon fiber is carried out sensitization, activation processing.
Then carry out the wetability that copper plating treatment is improved carbon fiber and aluminium liquid on the surface of carbon fiber.Plate on the surface of carbon fiber have certain thickness, copper coating uniformly, strengthened the aluminium base interface binding power of carbon fiber and metal.Carbon fiber is carried out electroless copper re-plating copper earlier, promptly solved the evil mind problem of carbon fiber bundle, can obtain thicker coating again, make the adhesion of coating and carbon fiber better.Copper carbon fiber is immersed in 1% BAS, greatly reduces the degree of oxidation of copper, solved the oxidation difficult problem of carbon fiber surface copper coating in the high temperature recombination process.
Adopt the melt paddling process that surface treated carbon fiber and metal aluminium liquid are prepared into aluminum base carbon fiber composite material, earlier aluminium is melted, utilize mechanical agitation agitated liquid metal, aluminum melt is flowed strongly form vortex, rely on the negative pressure swabbing action of vortex to join through the copper carbon fiber of anti-oxidant treatment in the aluminum melt, evenly distribute, form composite material at last.The aluminum base carbon fiber composite core 1 that obtains is just obtained the aluminum base carbon fiber compound wire with aluminium alloy conductor 2 twistings.
Claims (3)
1, a kind of conducting wire with aluminum base carbon fiber composite material core, comprise lead inner core and outer field aluminium alloy conductor thereof, aluminium alloy conductor hinge in around the lead inner core, it is characterized in that: adopt aluminum base carbon fiber composite material as the lead inner core, wherein the surface of carbon fiber is coated with copper coating, carbon fiber volume percentage is that 1-2%, copper percent by volume are 1.2-1.5% in the lead inner core, and all the other are Raw Aluminium.
2, conducting wire with aluminum base carbon fiber composite material core according to claim 1 is characterized in that: carbon fiber volume percentage is 2% in the lead inner core, the copper percent by volume is 1.5%, and all the other are Raw Aluminium.
3, conducting wire with aluminum base carbon fiber composite material core according to claim 1 and 2 is characterized in that: the lead total sectional area is 349.4mm
2-1469.5mm
2, lead inner core sectional area is 39.8mm
2-87.7mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910062744A CN101620894A (en) | 2009-06-19 | 2009-06-19 | Conducting wire with aluminum base carbon fiber composite material core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910062744A CN101620894A (en) | 2009-06-19 | 2009-06-19 | Conducting wire with aluminum base carbon fiber composite material core |
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| CN101620894A true CN101620894A (en) | 2010-01-06 |
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| CN200910062744A Pending CN101620894A (en) | 2009-06-19 | 2009-06-19 | Conducting wire with aluminum base carbon fiber composite material core |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517674A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Aluminum-based carbon fiber composite core wire |
| CN104517684A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Production method of aluminum-based carbon fiber composite core wire |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
| CN105869697A (en) * | 2015-01-22 | 2016-08-17 | 德尔福派克电气系统有限公司 | High strength high-conductivity automobile aluminum wire |
-
2009
- 2009-06-19 CN CN200910062744A patent/CN101620894A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517674A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Aluminum-based carbon fiber composite core wire |
| CN104517684A (en) * | 2013-10-08 | 2015-04-15 | 国家电网公司 | Production method of aluminum-based carbon fiber composite core wire |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
| CN105869697A (en) * | 2015-01-22 | 2016-08-17 | 德尔福派克电气系统有限公司 | High strength high-conductivity automobile aluminum wire |
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Open date: 20100106 |