CN109517243A - The manufacturing method of high reliability heat resistant fiber composite rope - Google Patents
The manufacturing method of high reliability heat resistant fiber composite rope Download PDFInfo
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- CN109517243A CN109517243A CN201710852916.3A CN201710852916A CN109517243A CN 109517243 A CN109517243 A CN 109517243A CN 201710852916 A CN201710852916 A CN 201710852916A CN 109517243 A CN109517243 A CN 109517243A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a kind of manufacturing method of high reliability heat resistant fiber composite rope, and HDPE, EPDM, compatilizer and modified EVA particle obtained above are added on kneading machine and are kneaded 10-20min, and temperature is 105-110 DEG C, obtains rubber compound；By rubber compound obtained above with 5 ~ 8 parts of 4 ~ 8 parts of calcium zinc heat stabilizer, 2 ~ 3 parts of antioxidant, aminopropyl triethoxysilane investment mixers, after being kneaded 2-3min, banbury rotating speed 150-200r/min, temperature is controlled at 90-105 DEG C；The blended stock obtained after mixing is conveyed into screw extruder through bipyramid shearing and squeezes out processing, body temperature when extrusion is 140 ± 10 DEG C, and head temperature is 110 ± 10 DEG C.The degradation temperature of thermoplastic sheath material of the present invention reaches at 158 DEG C, and variation in tensile strength and elongation at break change rate are no more than ± 20%.
Description
Technical field
The present invention relates to optical fiber composite low-voltage cable technical fields, and in particular to a kind of high reliability heat resistant fiber composite rope
Manufacturing method.
Background technique
It is existing that heat resistant type light unit and dilatation channel, benefit are added in lv power cable in power optical fiber transmission field
Optical fiber dilatation is carried out with the light unit air-blowing method laid after light unit, product itself is additionally arranged in lv power cable resistance to
Heat type light unit and it is prefixed optic communication pipeline, is primarily present following technical problem:
1, the electric unit in optical fiber composite low-voltage cable (insulated wire cores) has good physical mechanical property, produces in each process
It is not easy to cause a devastating effect to its electrical property in the process；And the optical fiber in light unit is point most weak in composite rope.Light list
The performance of member is highly prone to influence in process of production, and such as during light, electric unit compound stranding, the structure of composite rope is designed
Unreasonable, the laying tension control precision reasons such as not enough, all may cause fibercuts or fiber transmission performance are unqualified.
2, the optical fiber in common light unit is when being heated above 85 DEG C, optical fiber attenuation obvious increasing as temperature steps up
Greatly, by researching and developing extraordinary high fever thermal resistance plastic jacket material, effectively delay electric power core to the heat of light unit and dilatation channel
Conduction extends temperature rising-time by the electricity consumption wave crest phase, reduces the optical fiber transmission attenuation value of light unit and dilatation light unit；In addition should
Special material uses thermoplasticity, effectively reduces the light unit various problems due to caused by crosslinking problem in process of production.
3, common optical cable air-blown installation is horizontal laying, is conveyed by mechanically-propelled device and air compressor air-flow,
Micro- cable level is only blown into dedicated default pipeline.However for the optical fiber composite rope of this extendible capacity, construction, laying
When cable tend not to be horizontally arranged, the various situations such as poling, turning, pendency can be faced, sometimes even require laying before
Disk has upper direct air-blown installation.Cable completes air-blowing on cable reel, and entire air-blown installation process, the resistance that light unit is subject to is more
Greatly, direction, position all no regularity of traveling.Traditional air-blowing mode lays optical fiber composite cable after being unable to satisfy light unit
It is required that so the main problem of extendible capacity optical fiber composite cable is exactly to solve light unit in big resistance, irregular, long range condition
Under how to solve the problems, such as the dilatation air-blown installation of light unit, the requirement for dilatation air-blown installation also greatly improves.Key technology
Mainly in terms of the size of optic communication pipeline and reinforcement structure optimization, the pressure control of air compressor, air-blowing mode etc. are several
Start with and solves the problems, such as the dilatation air-blown installation of product.
Summary of the invention
The object of the present invention is to provide a kind of manufacturing method of high reliability heat resistant fiber composite rope, manufacturing process is obtained
Dilatation optical fiber composite rope improve composite rope light unit sheath temperature resistant grade and delay the temperature conduction time, be extruded in light list
First outer as sheath, it is 168 hours that the degradation temperature of thermoplastic sheath material, which reaches 158 DEG C, and material thermal resistance coefficient is not small
In 6.0, meet the decaying of power cable optical fiber in the environment of being more than highest work 10% no more than 0.15db.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of system of high reliability heat resistant fiber composite rope
Method is made, the dilatation optical fiber composite rope includes photovoltaic element, at least one ground wire core conductor, 3 power core conductors, control
Cable core conductor and reserved optical channel；
The ground wire core conductor, 3 power core conductors, control core conductor outer surface are coated with insulating layer, the photoelectricity list
First outer surface is coated with the first thermal resistance restrictive coating, the reserved optical channel by tension insulating layer, be coated on tension insulating layer appearance
The second thermal resistance restrictive coating in face forms；
It includes photovoltaic element, at least one ground wire core conductor, 3 that one belting layer, which is coated on the extendible capacity optical fiber composite low-voltage cable,
A power core conductor, control core conductor and reserved optical channel outer surface, an external sheath layer are coated on belting layer outer surface；
The first thermal resistance restrictive coating, the second thermal resistance restrictive coating are composed of the following components:
100 parts of high-density polyethylene resin,
20 ~ 35 parts of ldpe resin,
20 ~ 30 parts of poly(p-benzamide),
18 ~ 25 parts of trioctyl trimellitate (TOTM),
15 ~ 25 parts of stearic acid,
10 ~ 15 parts of barium stearate,
8 ~ 12 parts of tributyl citrate,
6 ~ 10 parts of diatomite,
Maleic anhydride is grafted 5 ~ 10 parts of PE,
4 ~ 8 parts of calcium zinc heat stabilizer,
2 ~ 3 parts of antioxidant,
5 ~ 8 parts of aminopropyl triethoxysilane；
The first thermal resistance restrictive coating, the second thermal resistance restrictive coating are obtained by following steps:
Step 1: by 100 parts of high-density polyethylene resin, 20 ~ 35 parts of ldpe resin, poly(p-benzamide) 20 ~ 30
Part, 18 ~ 25 parts of trioctyl trimellitate (TOTM), 15 ~ 25 parts of stearic acid, in 10 ~ 15 parts of addition high-speed mixers of barium stearate, in 95-
Speed at 105 DEG C with 500-800rpm is stirred 20-30min, then by 8 ~ 12 parts of tributyl citrate, diatomite 6 ~
10 parts, in the double extruders of maleic anhydride grafting PE5 ~ 10 part investment screw rod, add EVA, the control of extruder melt zone temperature exists
140-175 DEG C, the melt blending 10-20min under the revolving speed of 400-600r/min, then extruding pelletization is to get modified EVA
Grain；
10- is kneaded Step 2: HDPE, EPDM, compatilizer and modified EVA particle obtained above are added on kneading machine
20min, temperature are 105-110 DEG C, obtain rubber compound；
Step 3: by rubber compound obtained above and 4 ~ 8 parts of calcium zinc heat stabilizer, 2 ~ 3 parts of antioxidant, aminopropyl-triethoxy
In 5 ~ 8 parts of investment mixers of silane, after being kneaded 2-3min, banbury rotating speed 150-200r/min, temperature is controlled in 90-105
℃；
Step 4: the blended stock obtained after mixing, which is conveyed into screw extruder through bipyramid shearing, squeezes out processing, machine when extrusion
Body temperature is 140 ± 10 DEG C, and head temperature is 110 ± 10 DEG C, is vulcanized on vulcanizing press after extrusion, in 160-180
Hot pressing 8-10min at DEG C, room temperature are cold-pressed 4-6min, sulfide stress 6-10MPa, and linear velocity is 12-15m/min out, to obtain
The CABLE MATERIALS of first thermal resistance restrictive coating (7), the second thermal resistance restrictive coating (9).
The further improved technical solution of above-mentioned technical proposal is as follows:
1. in above scheme, the antioxidant is at least one in antioxidant 1010, anti-oxidant DLTP and antioxidant DSTP
Kind.
2. in above scheme, the belting layer and photovoltaic element, at least one ground wire core conductor, 3 power core conductors,
Several packings are provided between control core conductor and reserved optical channel.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
The manufacturing method of the novel high reliability heat resistant fiber composite rope of the present invention uses 100 parts of high-density polyethylene resin, low
20 ~ 35 parts of Density Polyethylene Resin, 20 ~ 30 parts of poly(p-benzamide), 6 ~ 10 parts of diatomite, improve composite rope light unit sheath
Temperature resistant grade and delay the temperature conduction time, be extruded in outside light unit and be used as sheath, the degradation of thermoplastic sheath material
It is 168 hours that temperature, which reaches 158 DEG C, and material thermal resistance coefficient is not less than 6.0, and meeting power cable is being more than highest work 10%
The decaying of optical fiber is not more than 0.15db under environment；Secondly, it is based on 100 parts of high-density polyethylene resin, low density polyethylene (LDPE) tree
20 ~ 35 parts of rouge, 20 ~ 30 parts of poly(p-benzamide), 6 ~ 10 parts of diatomite further add 8 ~ 12 parts of tributyl citrate, aminopropyl
5 ~ 8 parts of triethoxysilane, the degradation temperature of thermoplastic sheath material reaches at 158 DEG C, variation in tensile strength and disconnected
Elongation change rate is split no more than ± 20%.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of dilatation optical fiber composite rope of the present invention.
In the figures above: 1, photovoltaic element；2, ground wire core conductor；3, power core conductor；4, control core conductor；5, pre-
Stay optical channel；6, insulating layer；7, the first thermal resistance restrictive coating；8, tension insulating layer；9, the second thermal resistance restrictive coating；10, belting layer；
11, external sheath layer；12, packing.
Specific embodiment
Embodiment 1 ~ 4: a kind of manufacturing method of high reliability heat resistant fiber composite rope, the dilatation optical fiber composite rope include
Photovoltaic element 1,2,3 power core conductors 3 of at least one ground wire core conductor, control core conductor 4 and reserved optical channel 5；
2,3 power core conductors 3 of the ground wire core conductor, 4 outer surface of control core conductor are coated with insulating layer 6, the light
1 outer surface of electric unit is coated with the first thermal resistance restrictive coating 7, the reserved optical channel 5 by tension insulating layer 8, to be coated on tension exhausted
Second thermal resistance restrictive coating 9 of 8 outer surface of edge layer forms；
It includes photovoltaic element 1, at least one ground wire core conductor that one belting layer 10, which is coated on the extendible capacity optical fiber composite low-voltage cable,
2,5 outer surface of 3 power core conductors 3, control core conductor 4 and reserved optical channel, an external sheath layer 11 are coated on band
10 outer surface of layer；
The first thermal resistance restrictive coating 7, the second thermal resistance restrictive coating 9 are composed of the following components:
Table 1
The first thermal resistance restrictive coating 7, the second thermal resistance restrictive coating 9 are obtained by following steps:
Step 1: by 100 parts of high-density polyethylene resin, 20 ~ 35 parts of ldpe resin, poly(p-benzamide) 20 ~ 30
Part, 18 ~ 25 parts of trioctyl trimellitate (TOTM), 15 ~ 25 parts of stearic acid, in 10 ~ 15 parts of addition high-speed mixers of barium stearate, in 95-
Speed at 105 DEG C with 500-800rpm is stirred 20-30min, then by 8 ~ 12 parts of tributyl citrate, diatomite 6 ~
10 parts, in the double extruders of maleic anhydride grafting PE5 ~ 10 part investment screw rod, add EVA, the control of extruder melt zone temperature exists
140-175 DEG C, the melt blending 10-20min under the revolving speed of 400-600r/min, then extruding pelletization is to get modified EVA
Grain；
10- is kneaded Step 2: HDPE, EPDM, compatilizer and modified EVA particle obtained above are added on kneading machine
20min, temperature are 105-110 DEG C, obtain rubber compound；
Step 3: by rubber compound obtained above and 4 ~ 8 parts of calcium zinc heat stabilizer, 2 ~ 3 parts of antioxidant, aminopropyl-triethoxy
In 5 ~ 8 parts of investment mixers of silane, after being kneaded 2-3min, banbury rotating speed 150-200r/min, temperature is controlled in 90-105
℃；
Step 4: the blended stock obtained after mixing, which is conveyed into screw extruder through bipyramid shearing, squeezes out processing, machine when extrusion
Body temperature is 140 ± 10 DEG C, and head temperature is 110 ± 10 DEG C, is vulcanized on vulcanizing press after extrusion, in 160-180
Hot pressing 8-10min at DEG C, room temperature are cold-pressed 4-6min, sulfide stress 6-10MPa, and linear velocity is 12-15m/min out, to obtain
The CABLE MATERIALS of first thermal resistance restrictive coating 7, the second thermal resistance restrictive coating 9.
Above-mentioned antioxidant is at least one of antioxidant 1010, anti-oxidant DLTP and antioxidant DSTP.
Above-mentioned belting layer 10 and photovoltaic element 1, at least one ground wire core conductor 2,3 power core conductors 3, control conductor
Several packings 12 are provided between conductor 4 and reserved optical channel 5.
The thermal resistance jacket layer material of this example preparation, the detection data of performance are as follows:
The thermal resistance restrictive coating performance indicator of 2 optical fiber composite low-voltage cable of table
Using above-mentioned high reliability heat resistant fiber composite rope manufacturing method when, use 100 parts of high-density polyethylene resin, low
20 ~ 35 parts of Density Polyethylene Resin, 20 ~ 30 parts of poly(p-benzamide), 6 ~ 10 parts of diatomite, improve composite rope light unit sheath
Temperature resistant grade and delay the temperature conduction time, be extruded in outside light unit and be used as sheath, the degradation of thermoplastic sheath material
It is 168 hours that temperature, which reaches 158 DEG C, and material thermal resistance coefficient is not less than 6.0, and meeting power cable is being more than highest work 10%
The decaying of optical fiber is not more than 0.15db under environment；Secondly, it is based on 100 parts of high-density polyethylene resin, low density polyethylene (LDPE) tree
20 ~ 35 parts of rouge, 20 ~ 30 parts of poly(p-benzamide), 6 ~ 10 parts of diatomite further add 8 ~ 12 parts of tributyl citrate, aminopropyl
5 ~ 8 parts of triethoxysilane, the degradation temperature of thermoplastic sheath material reaches at 158 DEG C, variation in tensile strength and disconnected
Elongation change rate is split no more than ± 20%.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of manufacturing method of high reliability heat resistant fiber composite rope, it is characterised in that: the dilatation optical fiber composite rope includes
Photovoltaic element (1), at least one ground wire core conductor (2), 3 power core conductors (3), control core conductor (4) and reserved light
Channel (5)；
The ground wire core conductor (2), 3 power core conductors (3), control core conductor (4) outer surface are coated with insulating layer
(6), photovoltaic element (1) outer surface is coated with the first thermal resistance restrictive coating (7), and the reserved optical channel (5) is insulated by tension
Layer (8), the second thermal resistance restrictive coating (9) composition for being coated on tension insulating layer (8) outer surface；
It includes photovoltaic element (1), at least one wire core that one belting layer (10), which is coated on the extendible capacity optical fiber composite low-voltage cable,
Conductor (2), 3 power core conductors (3), control core conductor (4) and reserved optical channel (5) outer surface, an external sheath layer
(11) it is coated on belting layer (10) outer surface；
The first thermal resistance restrictive coating (7), the second thermal resistance restrictive coating (9) are composed of the following components:
100 parts of high-density polyethylene resin,
20 ~ 35 parts of ldpe resin,
20 ~ 30 parts of poly(p-benzamide),
18 ~ 25 parts of trioctyl trimellitate (TOTM),
15 ~ 25 parts of stearic acid,
10 ~ 15 parts of barium stearate,
8 ~ 12 parts of tributyl citrate,
6 ~ 10 parts of diatomite,
Maleic anhydride is grafted 5 ~ 10 parts of PE,
4 ~ 8 parts of calcium zinc heat stabilizer,
2 ~ 3 parts of antioxidant,
5 ~ 8 parts of aminopropyl triethoxysilane；
The first thermal resistance restrictive coating (7), the second thermal resistance restrictive coating (9) are obtained by following steps:
Step 1: by 100 parts of high-density polyethylene resin, 20 ~ 35 parts of ldpe resin, poly(p-benzamide) 20 ~ 30
Part, 18 ~ 25 parts of trioctyl trimellitate (TOTM), 15 ~ 25 parts of stearic acid, in 10 ~ 15 parts of addition high-speed mixers of barium stearate, in 95-
Speed at 105 DEG C with 500-800rpm is stirred 20-30min, then by 8 ~ 12 parts of tributyl citrate, diatomite 6 ~
10 parts, in the double extruders of maleic anhydride grafting PE5 ~ 10 part investment screw rod, add EVA, the control of extruder melt zone temperature exists
140-175 DEG C, the melt blending 10-20min under the revolving speed of 400-600r/min, then extruding pelletization is to get modified EVA
Grain；
10- is kneaded Step 2: HDPE, EPDM, compatilizer and modified EVA particle obtained above are added on kneading machine
20min, temperature are 105-110 DEG C, obtain rubber compound；
Step 3: by rubber compound obtained above and 4 ~ 8 parts of calcium zinc heat stabilizer, 2 ~ 3 parts of antioxidant, aminopropyl-triethoxy
In 5 ~ 8 parts of investment mixers of silane, after being kneaded 2-3min, banbury rotating speed 150-200r/min, temperature is controlled in 90-105
℃；
Step 4: the blended stock obtained after mixing, which is conveyed into screw extruder through bipyramid shearing, squeezes out processing, machine when extrusion
Body temperature is 140 ± 10 DEG C, and head temperature is 110 ± 10 DEG C, is vulcanized on vulcanizing press after extrusion, in 160-180
Hot pressing 8-10min at DEG C, room temperature are cold-pressed 4-6min, sulfide stress 6-10MPa, and linear velocity is 12-15m/min out, to obtain
The CABLE MATERIALS of first thermal resistance restrictive coating (7), the second thermal resistance restrictive coating (9).
2. the manufacturing method of high reliability heat resistant fiber composite rope according to claim 1, it is characterised in that: the antioxygen
Agent is at least one of antioxidant 1010, anti-oxidant DLTP and antioxidant DSTP.
3. the manufacturing method of high reliability heat resistant fiber composite rope according to claim 1, it is characterised in that: the band
Layer (10) and photovoltaic element (1), at least one ground wire core conductor (2), 3 power core conductors (3), control core conductor (4) with
And several packings (12) are provided between reserved optical channel (5).
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| CN201710852916.3A CN109517243A (en) | 2017-09-20 | 2017-09-20 | The manufacturing method of high reliability heat resistant fiber composite rope |
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| CN201710852916.3A CN109517243A (en) | 2017-09-20 | 2017-09-20 | The manufacturing method of high reliability heat resistant fiber composite rope |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243906A (en) * | 2011-06-24 | 2011-11-16 | 四川明星电缆股份有限公司 | Photoelectric composite flame-proof high-voltage cable |
| CN105070367A (en) * | 2015-06-24 | 2015-11-18 | 江苏亨通电力电缆有限公司 | Novel opto-electronic combined medium-voltage trailing cable for port machinery and manufacturing process thereof |
| CN105161186A (en) * | 2015-06-24 | 2015-12-16 | 江苏亨通电力电缆有限公司 | High-strength towing-used photoelectric composite cable and manufacture method thereof |
-
2017
- 2017-09-20 CN CN201710852916.3A patent/CN109517243A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243906A (en) * | 2011-06-24 | 2011-11-16 | 四川明星电缆股份有限公司 | Photoelectric composite flame-proof high-voltage cable |
| CN105070367A (en) * | 2015-06-24 | 2015-11-18 | 江苏亨通电力电缆有限公司 | Novel opto-electronic combined medium-voltage trailing cable for port machinery and manufacturing process thereof |
| CN105161186A (en) * | 2015-06-24 | 2015-12-16 | 江苏亨通电力电缆有限公司 | High-strength towing-used photoelectric composite cable and manufacture method thereof |
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