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Carbon fiber cable core

A carbon fiber and cable core technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of unfavorable secondary twisting and curing, poor fatigue resistance, and easy loosening of the cable core, and achieve light weight and small linear expansion coefficient , the effect of high safety factor

Active Publication Date: 2012-05-23
HENGSHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing carbon fiber cable core is easy to loose, which is not conducive to secondary twisting and curing. At the same time, the fatigue resistance is poor, and some defects are prone to occur, resulting in wire breakage.

Method used

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  • Carbon fiber cable core
  • Carbon fiber cable core
  • Carbon fiber cable core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Such as figure 1 and figure 2 As shown, a carbon fiber cable core includes an insulating layer 2 and a core layer 3, the core layer 3 is composed of carbon fibers 4 and a resin system 5, and the insulating layer is wound around the outer layer of the core layer, and is characterized in that: The above resin system 5 is mainly composed of modified epoxy resin, curing agent, accelerator, toughening agent, anti-aging agent and internal mold release agent, the proportioning of each component is 100, the curing agent is 60-90, the accelerator is 1-5, the toughening agent is 5-15, the anti-aging agent is 0.5-3, and the internal release agent is 0-3. The details are as follows:

[0012] Composition

Embodiment 2

[0014] A carbon fiber cable core as in Example 1, the difference is that: the room temperature viscosity of the resin system is less than 2Pa s, the thermal deformation temperature of the cast body is 200-220°C, the tensile strength is 60-80MPa, and the bending strength is 100-130MPa , Flexural modulus 3.5-5GPa, elongation at break 3-5%.

Embodiment 3

[0016] The same as the carbon fiber cable core of the first embodiment, the difference lies in that the multiple bundles of carbon fibers in the core layer are impregnated with a resin system and then twisted into strands, and the twist angle of twisting is in the range of 1-10°.

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Abstract

The invention relates to a carbon fiber cable core, comprising an insulated layer and a core layer, wherein the core layer is composed of carbon fiber and a resin system, the insulated layer circumferentially winds at the outer layer of the core layer, and the resin system is mainly composed of the following components in parts by weight: 100 parts of modified epoxy resin, 60 to 90 parts of curing agent, 1 to 5 parts of accelerating agent, 5 to 15 parts of plasticizer, 0.5 to 3 parts of aging proof agent and 0 to 3 parts of internal demolding agent. The carbon fiber cable core adopting the above technical scheme has the advantages of light weight, high strength, good corrosion and high temperature resistance, high safety coefficient, small linear expansibility and the like.

Description

technical field [0001] The invention relates to a carbon fiber cable core. Background technique [0002] The wires used in power transmission lines are mainly aluminum steel cored wires (ACSR) and related products. This kind of metal wire itself has some disadvantages, such as its own weight, it is not suitable for large-span overhead; environmental corrosion and intermetallic corrosion are unavoidable; the demand for metal is large, etc. With the development of the power industry, the requirements for transmission wires are getting higher and higher. In the 1990s, Japanese scholars studied the use of carbon fiber cores instead of steel cores, and developed a new type of composite composite wire, that is, carbon fiber core aluminum stranded wire ( ACFR). Compared with conventional ACSR wires, this new type of wire has the advantages of light weight, small linear expansion coefficient, good arc characteristics, and does not require special tools and methods in construction....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/00H01B7/17H01B1/04H01B5/08C08L63/00C08K13/04C08K7/06
Inventor 单云刚章奕定田农孙攀颜磊
Owner HENGSHEN