Aramid fiber fabric and carbon fibre composite core for overhead transmission line conductor

Abstract

The invention discloses an aramid-carbon fiber composite core used for overhead power transmission lines, which is characterized in that: the aramid-carbon fiber composite core consists of 50 percent to 55 percent of carbon fiber, 10 percent to 15 percent of aramid fiber, 30 percent to 40 percent of resin and auxiliary materials; carbon fiber tows are centralized into a sphere by a centralizing rack and then pulled out; the aramid fiber is pulled out from a multi-layer yarn creel in a manner of wrapping the carbon fiber sphere; the carbon fiber sphere which is wrapped by the aramid fiber yarn is pulled out in synchronization with aramid fiber yarn and go through a die; stirred resin raw materials are filtered by a 80-mesh wire screen and poured into a resin groove 5; the temperature of a curing area used for heating the die and the temperature of a molding area are respectively set as 200 plus or minus 10 DEG C and 140 plus or minus 10 DEG C; then the curing area and the molding area are electrified to heat the die; and a heating system of an extruder is started up to regulate the temperatures of different areas accordingly. The aramid-carbon fiber composite core can solve the problem of combining a thermosetting technology and a thermoplastic technology, thus obtaining comparatively high product quality and achieving the expected technical solving goal.

Description

technical field [0001] The invention relates to the field of overhead transmission line conductors, in particular to an aramid fiber and carbon fiber composite core used for overhead transmission line conductors. Background technique [0002] With the continuous progress of material technology, at the end of the 20th century, people tried to use organic composite materials instead of metal materials to make the core material of the wire, and developed a new composite material synthetic core wire. This kind of wire gives full play to the characteristics of organic composite materials. Compared with various overhead wires at present, it has the characteristics of light weight, high strength, good thermal stability, low laxity, large carrying capacity, and corrosion resistance. In terms of land, material saving, environmental protection, and improvement of power transmission capacity, it has a good application prospect, especially suitable for the transformation of old lines. ...

AI Technical Summary

Problems solved by technology

Some people in China try glass fiber reinforced plastics and carbon fiber composite cores to make reinforced cores (FRP). Although they have the advantages of light weight, high strength, corrosion resistance, antistatic and anti-biting, the production rate is full and the bending radius is large.

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