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Key technology of high-strength thermal resistant aluminum-alloy conductor

2021-12-28 14:05
The high-strength hthermal resistant aluminum-alloy conductor has outstanding advantages such as good heat resistance, large current carrying capacity,

Key technology of high-strength thermal resistant aluminum-alloy conductor

The high-strength hthermal resistant aluminum-alloy conductor has outstanding advantages such as good heat resistance, large current carrying capacity, high tensile strength, light weight, good sag characteristics, and excellent corrosion resistance. TAAAC conductor is used in the transformation of old lines and has outstanding capacity increasing effects. It can also save a lot of metal materials and infrastructure investment, especially suitable for lines that require high strength and large capacity, and can significantly improve transmission capacity and line safety. According to the successful international application experience and the good comprehensive performance of this kind of wire, the high-strength heat-resistant all-aluminum alloy wire is expected to become a very important new type of overhead wire in long-span transmission lines.

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  • The key technical difficulties in the research of high-strength thermal resistant aluminum-alloy conductors are as follows:

  1. The chemical composition of the alloy is determined, the addition ratio and order of the alloy elements are optimized, the segregation of the components, the distribution and morphology of the precipitated phases are controlled, and the mechanical properties, heat resistance, and electrical conductivity of the alloy are ensured. When adding a variety of alloying elements, not only consider the strength requirements, but also consider the heat resistance, but also to ensure higher electrical conductivity.

  2. Melt purification and casting process control, reduce the influence of harmful impurities and gases, and improve the overall quality of ingots.

  3. Develop effective control rolling, wire drawing technology and intermediate processing technology, and improve the mechanical and electrical properties of the product through technological means on the basis of the stable alloy composition.


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