Carbon fiber composite core composition and method for preparing carbon fiber composite core

A carbon fiber and composite core technology, applied in conductors, electrical components, circuits, etc., can solve problems such as high operating temperature, low ampacity, and galvanic corrosion, and achieve high conductivity, large ampacity, and high tensile strength.

Active Publication Date: 2013-06-19
艾瑞科电力电子科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing power wires are steel-cored aluminum-hinged wires, and the defects of steel-cored aluminum-hinged wires: ①Low strength
②Low electrical conductivity, small current carrying capacity, magnetic loss and thermal effect caused by steel wire material during wire operation, and high operating temperature
④ heavy weight
⑤ Not resistant to corrosion, there is a problem of galvanic corrosion between the aluminum wire and the galvanized steel wire when the conventional steel-cored aluminum hinged wire is energized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A carbon fiber composite core composition is composed of AFG-90 high-temperature epoxy resin, curing agent, accelerator, and carbon fiber, wherein AFG-90 high-temperature epoxy resin: curing agent: accelerator: carbon fiber=100:120~140:1~ 3: 60-80, the carbon fiber is polyacrylonitrile-based carbon fiber, the curing agent is methyltetrahydrophthalic anhydride, medinaric anhydride, and the accelerator is 2-ethyl 4-methylimidazole, Dimethylaminomethyl, benzyldimethylamine. The preparation method is the same as in Example 3.

Embodiment 2

[0033] The carbon fiber composite core composition is composed of AFG-90 high-temperature epoxy resin, curing agent, accelerator, and carbon fiber, wherein AFG-90 high-temperature epoxy resin: curing agent: accelerator: carbon fiber=100:125~135:1.5~2.5: 65 to 75, the curing agent is methyl tetrahydrophthalic anhydride, medinac anhydride, the accelerator is 2-ethyl 4-methylimidazole, dimethylaminomethyl, benzyldimethylamine . The preparation method is the same as in Example 3.

[0034] Carbon fiber composite core wire, including a resin matrix tube inner cavity connected with a carbon fiber core, a layer of clockwise rotating metal wire wrapped around the outer circumference of the resin matrix tube, and a layer of counterclockwise rotating metal wire wrapped around the outer circumference of the clockwise metal wire The rotating metal wire is connected with a fastening hoop at the end of the outer circumference of the counterclockwise rotating metal wire, and the function of ...

Embodiment 3

[0036] A method for preparing a carbon fiber composite core, carried out according to the following steps:

[0037] a. The carbon fiber enters the coupling agent sprayer from the creel through the yarn guide mechanism and the tension control mechanism;

[0038] b. The fiber tension controller adjusts the tension, and the fiber monofilament tension is 45N~55N;

[0039] c. The coupling agent sprayer is equipped with a high-pressure nozzle to spray mist KH560 solvent, and KH560 is prepared into a 1%-3% solution with 95% ethanol, and the spraying volume is 0.05cm 3 per minute, the fiber enters the vacuum injection prepreg device through the coupling agent sprayer, impregnated with high-temperature epoxy resin glue, and then enters the heated molding mold for curing and molding. The heated molding mold is heated in three zones, namely the preheating zone and the gelling zone and curing zone, the temperatures of the three zones are respectively: 120°C~135°C, 155°C~175°C, 170°C~190°...

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PUM

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Abstract

The invention relates to an electric lead, in particular to a carbon fiber composite core composition and a method for preparing a carbon fiber composite core. The composition comprises high-temperature epoxy resin, a curing agent, an accelerant and carbon fiber. The preparation method comprises the following steps that: the carbon fiber enters a coupling agent sprayer by a creel through a yarn-guide mechanism and a tension control mechanism; a tension controller adjusts the tension; a high-pressure spray head is arranged in the coupling agent sprayer to spray a foggy solvent; the fiber enters a vacuum injection pre-soaking device through the coupling agent sprayer to soak a high-temperature epoxy resin adhesive and then enters a heating molding mould to be cured and molded; the molding mould is divided into three areas for heating, and the three areas are a preheating area, a gelling area and a curing area respectively; the fiber is cured again by a drying cylinder after being cured; and the whole process is continuously driven by a hydraulic driving machine. Compared with the conventional lead, a carbon composite core lead has the advantages of light weight, high strength, low line loss, small sag, high temperature resistance, corrosion resistance, environmental friendliness and the like, and achieves the energy conservation, environmental protection and security of power transmission. The carbon fiber composite core composition and the method for preparing the carbon fiber composite core are widely applied to overhead power lines.

Description

technical field [0001] The invention relates to an electric wire, in particular to a carbon fiber composite core composition and a preparation method for the carbon fiber composite core. Background technique [0002] The existing electric wire is a steel-cored aluminum-hinged wire, and the steel-cored aluminum-hinged wire has the following defects: ① low strength. ②The electrical conductivity is low, the current carrying capacity is small, and there are magnetic losses and thermal effects caused by the steel wire material during the operation of the wire, and the operating temperature is high. ③The coefficient of linear expansion is large and the strength is high. When the temperature of the steel-cored-aluminum hinge wire rises from 26°C to 183°C. Strength increased from 236mm to 1422mm. Increased by 35 times. ④ heavy weight. ⑤ Not resistant to corrosion, there is a problem of galvanic corrosion between the aluminum wire and the galvanized steel wire when the convention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K9/00C08K7/06C08G59/42H01B7/18
Inventor 吴亚明
Owner 艾瑞科电力电子科技(江苏)有限公司
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