一种高导电率高强度稀土铝合金导线材料及其制备方法

By using rare earth element microalloying and multi-stage aging processes, high-conductivity and high-strength aluminum alloy conductors were prepared, solving the problems of insufficient conductivity and strength in existing technologies and achieving high efficiency and stability in ultra-high voltage power transmission.

CN121780956BActive Publication Date: 2026-07-17GUANGDONG YUANGUANG CABLE IND +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The conductivity of existing high-strength aluminum alloy conductors is insufficient, and existing processes are unable to stably improve conductivity and strength, especially in ultra-high voltage transmission lines where there is a problem of high line loss.

Method used

By introducing a specific amount of rare earth elements for microalloying, and combining it with precisely controlled continuous casting and rolling and multi-stage aging processes, the microstructure and properties of the material are optimized to prepare high-conductivity and high-strength aluminum alloy wires.

Benefits of technology

We have achieved high-performance aluminum alloy conductors with a conductivity of not less than 55.5% IACS and a tensile strength of not less than 315 MPa, which significantly reduces transmission loss and ensures the stability and consistency of production.

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Abstract

本发明公开一种高导电率高强度稀土铝合金导线材料及其制备方法,属于铝合金加工技术领域。首先按目标成分配制合金溶液进行熔炼,熔炼后加入Al‑Fe、Al‑Si、Al‑Cu中间合金,熔化后依次加入Al‑重稀土元素中间合金和Al‑La‑Ce‑Pr‑Nd中间合金,搅拌后加入精炼剂进行旋转喷吹精炼,静置后加入铝钛硼晶粒细化剂丝,对经过精炼的合金混合溶液进行连铸连轧得到铝合金杆,将铝合金杆拉拔成丝,最后对铝合金单丝进行多级时效处理即得高导电率高强度稀土铝合金导线材料。本发明提供的铝合金导线材料出导电率不低于55.5% IACS、抗拉强度不低于315 MPa,协同实现了强度与导电率的同步优化,确保产品稳定性。
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Citation Information

Patent Citations

  • High-conductivity rare earth aluminum alloy wire and manufacturing method thereof

    CN106710663A

  • High-toughness cast aluminum alloy material and preparation method thereof

    CN116590583A