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Carbon fiber composite core wire and production method

A composite material core, carbon fiber technology, applied in cable/conductor manufacturing, conductors, non-insulated conductors, etc., can solve the problems of low strength, large expansion coefficient and small current carrying capacity of steel core aluminum stranded wire, and avoid electrical corrosion problems. , The effect of small linear expansion coefficient and large current carrying capacity

Inactive Publication Date: 2015-04-15
STATE GRID CORP OF CHINA +2
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a carbon fiber composite core wire and its preparation method to overcome the problems of low strength, low electrical conductivity, small current carrying capacity, large expansion coefficient, heavy weight and non-corrosion resistance of the existing steel-reinforced aluminum stranded wire. defect

Method used

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  • Carbon fiber composite core wire and production method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] Such as figure 1 As shown, the carbon fiber composite core wire of the present invention includes an inner core of the wire and an aluminum alloy conductor 3 on its outer layer. The aluminum alloy conductor 3 is hinged around the inner core of the wire, and the inner core of the wire is composed of a multi-strand carbon fiber composite core 1 It is composed of at least one layer of glass fiber tape protection layer 2, and the multi-strand carbon fiber composite core 1 and the glass fiber tape protection layer 2 are twisted and bonded together obliquely. The carbon fiber composite core 1 is composed of high temperature epoxy resin, curing agent, and accelerator. , Carbon fiber composition, high temperature epoxy resin: curing agent: accelerator: carbon fiber is 100:120:2:80, and the carbon fiber is polyacrylonitrile-based carbon fiber.

[0024] The prepar...

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Abstract

The invention discloses a carbon fiber composite core wire and a production method. The wire comprises an inner wire core and an aluminium alloy conductor, the aluminium alloy conductor is hinged around the inner wire core, the inner wire core is composed of multiple strands of carbon fiber reinforced composite cores and at least one layer of glass fiber strip protection coating which are obliquely twisted and bonded into a whole, each carbon fiber reinforced composite core is composed of high temperature epoxy resin, a curing agent, accelerant and carbon fibers in the ratio of 100:120:2:80, and the carbon fibers are polyacrylonitrile-based carbon fibers. The carbon fibers pass through a yarn guiding mechanism, a tension mechanism, a quantitative coupling agent sprayer, a vacuum injection preimpregnation device and a drying drum to obtain composite carbon fibers, and the composite carbon fibers pass through a winding machine and are subjected to infiltration and gluing prior to being fed to a strander to produce the wire according to a conventional method. The wire is high in conductivity, large in current-carrying capacity, large in strength, lightweight, resistant to corrosion and long in service life.

Description

Technical field [0001] The invention relates to a wire for overhead power transmission lines, in particular to a carbon fiber composite material core wire and a preparation method, belonging to the field of power transmission wire manufacturing. Background technique [0002] As the carrier of power transmission, overhead transmission lines occupy an extremely important position in transmission lines. For a long time, steel core aluminum stranded wire has been mainly used for overhead conductors. The ACSR has the following defects: first, low strength; second, low conductivity, low current-carrying capacity, magnetic loss and thermal effects caused by the steel wire material in the wire operation, high operating temperature; third, large linear expansion coefficient; fourth Heavy weight; Fifth, it is not corrosion-resistant and heavy; Fifth, it is not corrosion-resistant. There is a problem of galvanic corrosion between the aluminum wire and the galvanized steel wire. Summary o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B5/10H01B13/00
Inventor 韦强启张洪涛韩爱芝刘守明李现春姜新斌祝炳臣史宏伟苗雪鹏梁晓东王桂花
Owner STATE GRID CORP OF CHINA
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