Aluminum alloy material, monofilament and preparation method thereof, overhead power transmission conductor

By controlling the composition of aluminum alloy and performing a two-stage aging treatment, high conductivity and high strength aluminum alloy monofilaments were prepared, solving the problem that existing aluminum alloy conductors cannot achieve both conductivity and strength. This meets the requirements for high-capacity, high-elasticity, and long-distance power transmission, and improves the safety and efficiency of power transmission lines.

CN117551917BActive Publication Date: 2026-07-03GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Filing Date
2023-11-15
Publication Date
2026-07-03

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Abstract

This invention relates to an aluminum alloy material, a monofilament, its preparation method, and an overhead power transmission conductor, belonging to the technical field of electrical conductor materials. It overcomes the deficiency in existing aluminum alloy conductors where conductivity and strength are difficult to balance. The aluminum alloy material of this invention, by mass percentage, comprises: B: 0.01%–0.02%, Fe: 0.40%–0.50%, Cu: 0.10%–0.20%, Y: 0.25%–0.35%, Zn: 0.005%–0.01%, Si ≤ 0.05%, (Ti+V+Cr+Mn) ≤ 0.01%, with the remainder being aluminum and unavoidable impurities. This invention improves conductivity while ensuring strength and heat resistance.
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