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Rare earth high-iron aluminum alloy conductor material

An aluminum alloy conductor, high-speed rail technology, applied in the field of wires and cables, can solve the problems of not reaching the best heat resistance and corrosion resistance, poor aluminum mechanical properties, connection properties and corrosion resistance, and high cost of copper cables, achieving excellent Curvature performance, good corrosion resistance effect, corrosion resistance improvement effect

Active Publication Date: 2013-05-08
于贵良 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The price of copper has skyrocketed, and the cost of using copper cables is too high, which has caused great economic pressure on both manufacturers and users. However, due to defects such as poor mechanical properties, connection performance and corrosion resistance of aluminum, the purpose of replacing copper cables cannot be achieved. , the aluminum alloy material has been improved in composition and process, so that the aluminum alloy has improved the defects of pure aluminum, so it can achieve the purpose of replacing copper cables, especially in the field of power cables
For example, the authorized invention patent 200910116635.7 discloses a high-elongation aluminum alloy material for cables and its preparation method. This patent provides an aluminum alloy with excellent elongation, bending performance, creep resistance and electrical properties. Materials and their preparation methods, but the heat resistance and corrosion resistance have not reached the best, so further improvement is needed to develop an aluminum alloy material with better performance to replace the copper conductor

Method used

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  • Rare earth high-iron aluminum alloy conductor material

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Effect test

Embodiment 1

[0015] A rare-earth high-iron aluminum alloy conductor material, the weight percentage of the alloy material is: including 0.4-1.5wt% Fe, for example, it can be selected as 0.45%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% . 0.35%, 0.5%, 0.7%, 0.9%, 1.2%, 1.5%, 1.7%, 1.9%, 2.2%, 2.5%, 2.7%, 2.9%, including 0.01~0.4wt% Sc, Er, Ca, One or several elements in Sb and Mg, such as 0.04%, 0.06%, 0.08%, 0.13%, 0.15%, 0.19%, 0.22%, 0.26%, 0.30%, 0.33%, 0.35%, 0.37% , 0.39%.

Embodiment 2

[0017] Rare earth high iron aluminum alloy conductor material, containing: 0.4wt% Fe, 3wt% rare earth elements, the rest is aluminum and unavoidable impurities, the material also contains: 0.01wt% of Sc, Er, Ca, Sb, Mg One or any of several. The rare earth element is one or more of Y, La, Ce, Pr, Nd, wherein the content of a single element is not less than 0.05wt% of the alloy. The total content of impurities in the aluminum alloy is ≤0.2wt%.

Embodiment 3

[0019] Rare earth high iron aluminum alloy conductor material, containing: 1.5wt% Fe, 0.3wt% rare earth elements, the rest is aluminum and unavoidable impurities, the material also contains: 0.4wt% of Sc, Er, Ca, Sb, Mg one or any of several. The rare earth element is one or more of Y, La, Ce, Pr, Nd, wherein the content of a single element is not less than 0.05wt% of the alloy. The total content of impurities in the aluminum alloy is ≤0.2wt%.

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Abstract

The invention discloses a rare earth high-iron aluminum alloy conductor material, which comprises 0.4 to 1.5 weight percent of Fe, 0.3 to 1.3 weight percent of rare-earth element, 0.01 to 0.4 weight percent of one or several of Sc, Er, Ca, Sb and Mg and the balance of aluminum and inevitable impurities. The aluminum alloy material has various performance indexes of a high-elongation aluminum alloy material for a cable and has excellent heat resistance and corrosion resistance; therefore, the material has higher current carrying capacity.

Description

technical field [0001] The invention belongs to the technical field of electric wires and cables, and in particular relates to a rare-earth high-iron aluminum alloy conductor material. Background technique [0002] The price of copper has skyrocketed, and the cost of using copper cables is too high, which has caused great economic pressure on both manufacturers and users. However, due to defects such as poor mechanical properties, connection performance and corrosion resistance of aluminum, the purpose of replacing copper cables cannot be achieved. , The aluminum alloy material has been improved in composition and process, so that the aluminum alloy has improved the defects of pure aluminum, so it can achieve the purpose of replacing copper cables, especially in the field of power cables. For example, the authorized invention patent 200910116635.7 discloses a high-elongation aluminum alloy material for cables and its preparation method. This patent provides an aluminum alloy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/02C22C21/00
Inventor 林泽民
Owner 于贵良
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