Carbon fiber wire

Abstract

The invention discloses a carbon fiber wire. The carbon fiber wire comprises a three-layer structure which sequentially comprises an inner layer, a soft aluminum or aluminum alloy cladding layer and a soft aluminum type stranded wire layer from inside to outside, and the inner layer comprises four carbon fiber layers. The carbon fiber wire has the advantages that tensile stress is pre-stored in the cladding process by adopting a continuous aluminum cladding technology, and seamless cladding is conducted on carbon fiber core rods through an aluminum cladding technology, so that the carbon fiber wire does not directly make contact with air, and then influences of oxidization, ultraviolet irradiation, water vapor, salt and alkali and the like on the carbon fiber core rods are eliminated; transformation is conducted on a traditional steel-cored aluminum strand hardware fitting, and therefore the carbon fiber wire can achieve pressure welding through a common hardware fitting; the tensile strength of the carbon fiber wire reaches 2,600 MPa, and the maximum allowable operation temperature ranges from 180 DEG C to 200 DEG C; the cost of the carbon fiber wire can be reduced by 30% to 50% compared with a common carbon fiber wire; the resin-glass conversion temperature of the carbon fiber wire is significantly lowered compared with the common carbon fiber wire, and low sag is kept.

Description

technical field [0001] The invention relates to the technical field of carbon fiber wires, in particular to a carbon fiber wire. Background technique [0002] Carbon fiber composite wire is a new energy-saving capacity-enhancing wire with a new structure. Compared with conventional wires, it has light weight, high tensile strength, good heat resistance, small thermal expansion coefficient, small high-temperature sag, high conductivity, and low line loss. A series of advantages such as low current carrying capacity, good corrosion resistance, and not easy to be iced, comprehensively solve various technical bottlenecks in the field of overhead power transmission, represent the technical development trend of overhead conductors in the future, and contribute to the construction of safety, environmental protection, The high-efficiency and energy-saving transmission network can be widely used in the reconstruction of old lines and power station busbars, the construction of new lin...

AI Technical Summary

Problems solved by technology

The carbon fiber wire with this structure has the following defects: Traditional carbon fiber wire disadvantages: 1. The carbon fiber mandrel is easy to break during installation. There are gaps between the layers, so that the carbon fiber mandrel is equivalent to being exposed to the air. Due to the influence of oxidation, ultraviolet radiation, rain, etc. on the carbon fiber mandrel, the service life of the wire is reduced; 2. It is necessary to use special fittings to connect. The cost is high, the installation is complicated, and it is easy to damage the carbon fiber mandrel, which makes the transmission line a safety hazard; 3. The tensile strength of the carbon fiber mandrel can reach up to 2400MPa, and the maximum allowable operating temperature is 160°C; 4. The resin glass transition temperature is high, Relatively large sag

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