CN105719768B - Aerial condutor aluminium packet fiber-reinforced composite core and its manufacturing method - Google Patents
Aerial condutor aluminium packet fiber-reinforced composite core and its manufacturing method Download PDFInfo
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- CN105719768B CN105719768B CN201610288891.4A CN201610288891A CN105719768B CN 105719768 B CN105719768 B CN 105719768B CN 201610288891 A CN201610288891 A CN 201610288891A CN 105719768 B CN105719768 B CN 105719768B
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- 239000004411 aluminium Substances 0.000 title claims abstract description 71
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 71
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 115
- 239000002131 composite material Substances 0.000 claims abstract description 87
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 238000005470 impregnation Methods 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 7
- 238000005253 cladding Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of aerial condutor aluminium packet fiber-reinforced composite core, including an at least composite core, and the composite core includes the core fiber layer being made of plurality of fibers and is wrapped in the aluminium wrapping layer of core fiber layer periphery, it is characterised in that：In every composite core, the volume content of fiber is 50%~70%, a diameter of d of core fiber layer, and the thickness of aluminium wrapping layer is h, and the volume content of a diameter of D of composite core, fiber are w, then diameter d=(D of core fiber layer2×w/0.8)1/2, thickness h=[the D d]/2 of aluminium wrapping layer.The application also provides a kind of manufacturing method of aerial condutor aluminium packet fiber-reinforced composite core, includes yarn releasing successively；Impregnation bunchy；Solidification；Cladding and etc..The diameter of volume content and core fiber layer of the application by strict regulations fiber in composite core and the thickness of aluminium wrapping layer improve the comprehensive strength and bending resistance of composite core, so that composite core has preferable comprehensive performance, to meet the requirement of aerial condutor.
Description
Technical field
The invention belongs to overhead transmission line technical fields, more particularly to a kind of aerial condutor aluminium packet fiber-reinforced composite
Core and its manufacturing method.
Background technology
The beginning of this century substitutes traditional steel core system as strengthening core using fiber resin matrix composite core rod (abbreviation composite core rod)
At composite core, due to it makes use of carbon fiber light weight, intensity is high, linear expansion coefficient is small the advantages that, therefore thus made of it is multiple
Closing core has the distinguishing features such as high temperature resistant, large capacity, low arc drop, low energy consumption, light-weight, to as overhead transmission line field
Subversiveness product, at home and abroad power transmission line field obtained a large amount of application, the apparent technical economic benefit taken.So
And the composite core obtained after resin package solidification by plurality of fibers has following defect：1, after composite core is used for a long time, due to
The resin on surface is easy aging, is reduced so as to cause the service life of composite core；2, the mating connection gold utensil of composite core is complicated, cost
It is high, high to construction process requirement, become the crucial resistance point of composite core large-scale application；3, process of the composite core in manufacture
In, the resin for being wrapped in plurality of fibers sandwich layer periphery needs to cure, and the time of resin solidification consumption is longer, so as to cause compound
The production line of core will consume the more time, and production efficiency is low.
In view of the above-mentioned problems, the Chinese invention patent application specification application No. is 200810201843.2 discloses one kind
Enhance cable core, include at least a fiber reinforcement core and a protective metal shell, which coats the fiber reinforcement core；Together
When, it is that electrician's aluminium or stainless steel or the two are compound which also discloses the material of protective metal shell.Cause, by using aluminium or stainless
Steel or the compound resin wrapping layer instead of traditional composite core of the two, had not only remained that carbon fiber strength is high, the advantages such as light-weight, but also
Overcome the problems, such as that the composite core service life caused by the long-term ageing of resin wrapping layer is short.But since composite core is using gold
Belong to sheath, therefore, the volume content of protective metal shell and the thickness of protective metal shell all can be strong to the bending resistance of composite core, entirety
Degree performance generates certain influence, if the design of the volume content of protective metal shell, thickness is unreasonable, directly results in composite core
Service life greatly reduces, and cannot meet the requirement of aerial condutor.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of aerial condutor aluminium packet fibers
Enhance composite core, has the characteristics that intensity height, good bending property, meet the requirement of current aerial condutor.
To achieve the above object, the present invention provides a kind of aerial condutor aluminium packet fiber-reinforced composite core, including at least one
Root composite core, the composite core include the core fiber layer being made of plurality of fibers and the aluminium for being wrapped in core fiber layer periphery package
Layer, in every composite core, the volume content of fiber is 50%~70%, a diameter of d of core fiber layer, and the thickness of aluminium wrapping layer is
The volume content of h, a diameter of D of composite core, fiber are w, then the diameter d=(D of core fiber layer2×w/0.8)1/2, aluminium wrapping layer
Thickness h=[D-d]/2.
Further, the core fiber layer is made of at least one fiber.
Preferably, the intensity of the fiber is 2500MPa~5000MPa.
Further, the fiber is carbon fiber, glass fibre, basalt fibre, superhigh molecular weight polyethylene fibers, virtue
It is one or more in polyamide fiber.
Further, the composite core has more, and more composite cores are mutually twisted.
Preferably, a diameter of 2.00mm~11.0mm of the composite core.
Preferably, when composite core has more, a diameter of 2.00mm~5.0mm of the composite core.
As described above, aerial condutor of the present invention aluminium packet fiber-reinforced composite core, has the advantages that：
The composite core being made of core fiber layer and aluminium wrapping layer in the application is ensureing with intensity height, light weight, use
Under the premise of the advantages that long lifespan, pass through the diameter of volume content and core fiber layer of the strict regulations fiber in composite core
Improve the comprehensive strength and bending resistance of composite core with the thickness of aluminium wrapping layer so that composite core have it is preferable comprehensive
Can, to meet the requirement of aerial condutor.
Another object of the present invention is to provide a kind of aerial condutor that production efficiency is high aluminium packet fiber-reinforced composite cores
Manufacturing method.
To achieve the above object, the present invention provides a kind of manufacturing method of aerial condutor aluminium packet fiber-reinforced composite core,
Include the following steps successively：
A, yarn releasing：Plurality of fibers is released from pay off rack；
B, impregnation bunchy：Plurality of fibers is placed on abundant impregnation in the steeping vat for be contained with resin, plurality of fibers bonding
After form fibre bundle；
C, cure：The fibre bundle is subjected to high temperature pultrusion mould and solidification successively, obtains core fiber layer；
D, it coats：So that aluminium bar and the core fiber layer is passed through continued extrusion machine, is uniformly covered in the periphery of core fiber layer
One layer of aluminium of lid, obtains composite core, which includes core fiber layer and be wrapped in the aluminium wrapping layer of core fiber layer periphery, the fibre
The volume content of dimension is 50%~70%, a diameter of d of core fiber layer, and the thickness of aluminium wrapping layer is h, a diameter of D of composite core,
The volume content of fiber is w, then the diameter d=(D of core fiber layer2×w/0.8)1/2, thickness h=[D-d]/2 of aluminium wrapping layer.
Further, further include step F, winding：The composite core is wound into disk.
Preferably, in the step D, heating temperature T≤350 of the die cavity in continued extrusion machine for heating aluminium bar
DEG C, so that aluminium bar is in the state of slush.
As described above, manufacturing method of the aerial condutor of the present invention with aluminium packet fiber-reinforced composite core, has following
Advantageous effect：
The manufacturing method, which can produce, has many advantages, such as that intensity height, light weight, service life are long, bending resistance is good
Composite core, to meet the requirement of aerial condutor, meanwhile, the application using aluminium wrapping layer due to replacing traditional resin packet
Covering layer, therefore the process for eliminating resin solidification to greatly shorten taking for composite core production line, and then greatly improve composite core
Production efficiency, meet the requirement of current lean production.
Description of the drawings
Fig. 1 is the structural schematic diagram of single composite core in the application.
Fig. 2 is the more stranded structural schematic diagrams of composite core in the application.
Fig. 3 is the process flow chart of the manufacturing method of aerial condutor aluminium packet fiber-reinforced composite core in the application.
Component label instructions
1 composite core
11 core fiber layers
12 aluminium wrapping layers
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification to be taken off
The content shown is not limited to the enforceable qualifications of the present invention so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the application provides a kind of aerial condutor aluminium packet fiber-reinforced composite core, including at least one compound
Core 1, the composite core 1 include the core fiber layer 11 being made of plurality of fibers and are wrapped in the aluminium wrapping layer of 11 periphery of core fiber layer
12, in every composite core 1, the volume content of fiber is 50%~70%；A diameter of d of the core fiber layer 11, aluminium wrapping layer
12 thickness is h, and the volume content of a diameter of D of composite core 1, fiber are w, then the diameter d=(D of core fiber layer 112×w/
0.8)1/2, thickness h=[D-d]/2 of aluminium wrapping layer 12.
Above-mentioned composite core 1 is made of the core fiber layer 11 positioned at internal layer and the aluminium wrapping layer 12 positioned at outer layer, therefore, compound
Core 1 has many advantages, such as that intensity height, light weight, service life are long, overcomes traditional composite core 1 and is produced due to using resin wrapping layer
The drawbacks of raw long-term ageing, lost of life.Particularly, volume of the application also by strict regulations fiber in composite core 1
The thickness h of the diameter d and aluminium wrapping layer 12 of content and core fiber layer 11 improve the comprehensive strength of composite core 1 and counter-bending
Ability, so that composite core 1 has preferable comprehensive performance, to meet the requirement of aerial condutor.
Preferably, the core fiber layer 11 is made of at least one fiber；The fiber is carbon fiber, glass fibre, profound
It is one or more in military rock fiber, superhigh molecular weight polyethylene fibers, aramid fibre.In addition, the composite core 1 can
Think one, or more；When composite core 1 has more, as shown in Fig. 2, more composite cores 1 mutually twist together, into
And make twisted rear manufactured composite core 1 that there is preferable lateral pressure resistant performance, bending resistance and high-intensity performance.
In addition, when composite core 1 is one, the diameter range of composite core 1 is 5.00mm~11.0mm, in composite core 1
The volume content of fiber is 50%~70%, and the strength range for constituting the fiber of core fiber layer 11 is 2500MPa~5000MPa.
When composite core 1 be more and it is mutually twisted when, the diameter range of single composite core 1 is 2.00mm~5.0mm, in composite core 1
The volume content of fiber is 50%~70%, and the strength range for constituting the fiber of core fiber layer 11 is 2500MPa~5000MPa.
The application also provides a kind of manufacturing method of aerial condutor aluminium packet fiber-reinforced composite core, as shown in figure 3, described
Manufacturing method includes the following steps successively：
A, yarn releasing：Plurality of fibers is released from pay off rack；
B, impregnation bunchy：Plurality of fibers is placed in the steeping vat for being contained with resin, abundant impregnation is carried out, it is therefore, more
Root fiber bonds, to form fibre bundle, and the diameter of fibre bundle should meet prepared composite core to its requirement；
C, cure：The fibre bundle is subjected to high temperature pultrusion mould and solidification successively, the core fiber layer 11 being cured；It should
Hardening time is very short, and curing degree to core fiber layer 11 and the final surface effect of core fiber layer 11 all do not require；
D, it coats：Aluminium bar is sent into continued extrusion machine, while the core fiber layer being cured in step C 11 being made to pass through company
Continuous extrusion cladding machine, using continued extrusion machine core fiber layer 11 one layer of aluminium of periphery uniform fold, it is compound to obtain
Core 1；
The composite core 1 includes core fiber layer 11 and the aluminium wrapping layer 12 for being wrapped in 11 periphery of core fiber layer, the fiber
Volume content is 50%~70%, a diameter of d of core fiber layer 11, and the thickness of aluminium wrapping layer 12 is h, composite core 1 it is a diameter of
The volume content of D, fiber are w, then the diameter d=(D of core fiber layer 112×w/0.8)1/2, thickness h=[D- of aluminium wrapping layer 12
d]/2；
F, it winds：The composite core 1 is wound into disk, to reduce the occupied space of composite core 1, convenient for its storage storage and
Transport.
This application involves 1 manufacturing method of composite core in, aluminium bar and core fiber layer 11 are sent into continued extrusion machine
Afterwards, continued extrusion machine can continuously produce satisfactory composite core 1, eliminate and use in the prior art
The composite core 1 of resin wrapping layer in the fabrication process resin solidification the step of, to greatly shorten the production cycle of composite core 1,
And then the production efficiency of composite core 1 is largely improved, meet the requirement of modern lean production.
Preferably, in above-mentioned steps D, heating temperature T≤350 of the die cavity in continued extrusion machine for heating aluminium bar
DEG C, so that aluminium bar is in the state of slush, and then be equably wrapped in the periphery of core fiber layer 11 convenient for aluminium, forms composite core 1
Aluminium wrapping layer 12.
The preferred embodiment of several composite cores 1 exemplified below：
The correspondence of 1 composite core of table 1 diameter and 11 diameter of core fiber layer
The correspondence of 2 composite core of table 1 diameter and 12 thickness of aluminium wrapping layer
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of aerial condutor aluminium packet fiber-reinforced composite core, including at least a composite core, the composite core include by more
The core fiber layer that root fiber is constituted and the aluminium wrapping layer for being wrapped in core fiber layer periphery, it is characterised in that：The aluminium wrapping layer by
Aluminium bar is sent into continued extrusion machine, is formed after one layer of aluminium of periphery uniform fold of core fiber layer, and continuously extruded packet
Heating temperature T≤350 DEG C for covering the die cavity in machine for heating aluminium bar, make aluminium bar be in the state of slush；Every composite core
In, the volume content w of fiber is 50%~70%, and the diameter D of composite core is 2.00mm~10.00mm, then the diameter of core fiber layer
d=(D2×w/0.8)1/2, the diameter d of thickness h=[D-d]/2 of aluminium wrapping layer, obtained core fiber layer are 1.6 mm~9.4mm.
2. aerial condutor according to claim 1 aluminium packet fiber-reinforced composite core, it is characterised in that：The core fiber layer
It is made of at least one fiber.
3. aerial condutor according to claim 2 aluminium packet fiber-reinforced composite core, it is characterised in that：The fiber it is strong
Degree is 2500MPa~5000MPa.
4. aerial condutor according to claim 2 aluminium packet fiber-reinforced composite core, it is characterised in that：The fiber is carbon
It is one or more in fiber, glass fibre, basalt fibre, superhigh molecular weight polyethylene fibers, aramid fibre.
5. aerial condutor according to claim 1 aluminium packet fiber-reinforced composite core, it is characterised in that：The composite core has
More, more composite cores are mutually twisted.
6. aerial condutor according to claim 5 aluminium packet fiber-reinforced composite core, it is characterised in that：The composite core
A diameter of 2.00mm~5.0mm.
7. a kind of aerial condutor manufacturing method of aluminium packet fiber-reinforced composite core, it is characterised in that：Include the following steps successively：
A, yarn releasing：Plurality of fibers is released from pay off rack；
B, impregnation bunchy：Plurality of fibers is placed on abundant impregnation in the steeping vat for be contained with resin, shape after plurality of fibers bonding
At fibre bundle；
C, cure：The fibre bundle is subjected to high temperature pultrusion mould and solidification successively, obtains core fiber layer；
D, it coats：So that aluminium bar and the core fiber layer is passed through continued extrusion machine, is used to heat aluminium in continued extrusion machine
Heating temperature T≤350 DEG C of the die cavity of bar make aluminium bar be in the state of slush, in the periphery uniform fold one of core fiber layer
Layer aluminium, obtains composite core, which includes core fiber layer and be wrapped in the aluminium wrapping layer of core fiber layer periphery, the fiber
Volume content is 50%~70%, a diameter of d of core fiber layer, and the thickness of aluminium wrapping layer is h, a diameter of D of composite core, fiber
Volume content is w, and the diameter D of composite core is 2.00mm~10.00mm, then diameter d=(D of core fiber layer2×w/0.8)1/2, aluminium
The diameter d of the thickness h of wrapping layer=[D-d]/2, obtained core fiber layer are 1.6 mm~9.4mm.
8. manufacturing method according to claim 7, it is characterised in that：Further include step F, winding：The composite core is rolled up
It is coiled into disk.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610288891.4A CN105719768B (en) | 2016-05-03 | 2016-05-03 | Aerial condutor aluminium packet fiber-reinforced composite core and its manufacturing method |
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| CN201610288891.4A CN105719768B (en) | 2016-05-03 | 2016-05-03 | Aerial condutor aluminium packet fiber-reinforced composite core and its manufacturing method |
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| EA202091770A1 (en) * | 2018-01-24 | 2020-10-16 | СиТиСи ГЛОБАЛ КОРПОРЕЙШН | TERMINAL DEVICE FOR AIR ELECTRIC CABLE |
| JP2020009620A (en) * | 2018-07-06 | 2020-01-16 | 東京製綱株式会社 | Heat-resistant core for electric wire |
| CN110197745A (en) * | 2019-03-28 | 2019-09-03 | 中复碳芯电缆科技有限公司 | A kind of multiply composite material strengthening core and preparation method thereof |
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| CN101295564B (en) * | 2008-06-19 | 2010-12-01 | 南京诺尔泰复合材料设备制造有限公司 | Production method and equipment for carbon fiber multi-use compound stranded wire |
| CN101727998A (en) * | 2008-10-28 | 2010-06-09 | 上海电缆研究所 | Reinforced cable core and manufacturing method thereof |
| CN102103902A (en) * | 2011-01-27 | 2011-06-22 | 南京诺尔泰复合材料设备制造有限公司 | Cable with composite carbon fiber stranded wire reinforced core for power transmission line and manufacturing method thereof |
| CN102516708B (en) * | 2011-11-25 | 2014-07-02 | 中国电力科学研究院 | Composite core for power grid transmission line wire and preparation method thereof |
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Address after: 200093 Shanghai military road, Yangpu District, No. 1000 Applicant after: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE Co.,Ltd. Applicant after: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID Address before: 200093 Shanghai military road, Yangpu District, No. 1000 Applicant before: Shanghai Electric Cable Research Institute Applicant before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID |
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Effective date of registration: 20210611 Address after: 200093 No. 1000, military road, Shanghai, Yangpu District Patentee after: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE Co.,Ltd. Patentee after: China South Power Grid International Co.,Ltd. Address before: 200093 No. 1000, military road, Shanghai, Yangpu District Patentee before: SHANGHAI ELECTRIC CABLE RESEARCH INSTITUTE Co.,Ltd. Patentee before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID |
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