High-conductivity hard aluminum wire and manufacture method thereof

Abstract

The invention discloses a high-conductivity hard aluminum wire and a manufacture method thereof. The high-conductivity hard aluminum wire comprises a central stiffener (1) and a high-conductivity hard aluminum conductor layer component (2), wherein the central stiffener (1) is formed by a single central stiffening wire or is formed by twisting a plurality of stiffening wires; the high-conductivity hard aluminum conductor layer component (2) is formed by twisting a plurality of high-conductivity hard aluminum single wires and is spirally wound on the central stiffener (1). The high-conductivity hard aluminum wire is characterized in that the high-conductivity hard aluminum single wire contains the following components: not more than 0.06wt% of silicon, not more than 0.138wt% of ferrum, 0.005wt% to 0.06wt% of titanium, 0.01wt% to 0.12wt% of boron and the balance of aluminum, wherein the ratio of ferrum to silicon is 1.8 to 2.3. The invention can increase the transmission capacity amountof transmission lines and reduce consumption of lines so as to effectively reduce the operation cost.

Description

technical field [0001] The invention discloses a high-conductivity duralumin wire, and also discloses a manufacturing method of the high-conductivity duralumin wire. Background technique [0002] "Energy saving and emission reduction" is also a policy guideline for the long-term development of national industries. At the same time, the State Grid Corporation also proposed to build a new type of smart grid that is "resource-saving, environment-friendly, new technology, new material, and new process". At present, the commonly used transmission wires for overhead transmission lines are ordinary steel-cored aluminum stranded wires, and the aluminum wires used for ordinary steel-cored aluminum stranded wires are hard aluminum wires with a conductivity of 61% IACS, and the general resistivity is 0.02790~0.028264Ω·mm 2 / m, while the overhead conductors mainly rely on aluminum wires to transmit current. If the conductivity of the aluminum wires can be increased, the energy consumpt...

AI Technical Summary

Problems solved by technology

Although the steel-core soft aluminum conductor improves the conductivity of the aluminum wire, the strength and hardness of the aluminum wire decrease, making it difficult to deploy and lower the safety performance

After the strength and hardness of the aluminum wire are reduced, the surface of the wire is easily scratched during construction, which will cause noise in the line operation, increase electromagnetic interference, and reduce the ability to resist corona, making its environmental protection performance and energy-saving effect unsatisfactory.

At the same time, during the display, there will be floating lines (lifting lanterns) and jumping strands due to the extension of the single line, which will affect the overall performance of the conductor.

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