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Non-heat treatment medium-strength aluminum alloy conductor material and preparation method thereof

A medium-strength aluminum alloy and aluminum alloy conductor technology, applied in the direction of metal/alloy conductors, cable/conductor manufacturing, electrical components, etc., to achieve significant economic benefits, solve continuous production bottlenecks, and save power consumption

Inactive Publication Date: 2015-04-22
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In patent CN103996427A, in order to obtain monofilament with high conductivity and high elongation, the aluminum rod is annealed, but the elongation of the aluminum alloy monofilament is only greater than or equal to 2.5%.

Method used

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  • Non-heat treatment medium-strength aluminum alloy conductor material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0008] Embodiment 1: A non-heat treatment type medium-strength aluminum alloy conductor material, the conductor material is mainly composed of iron, copper, magnesium, yttrium, boron alloy elements, inevitable impurity elements, silicon, chromium, manganese, vanadium, titanium and matrix Aluminum composition. The mass percentages of alloying elements are as follows: 0.35% Fe, 0.14% Cu, 0.025% Mg, 0.02% Y, 0.001% B.

[0009] The preparation process of the above-mentioned non-heat-treated medium-strength aluminum alloy conductor material is as follows: Si≤0.11%, Fe≤0.30%, Cu≤0.05%, Mg≤0.04%, (Cr+Mn+V+Ti)≤0.015%, and the rest per The impurity content of impurity elements ≤ 0.03% requires the selection of aluminum ingots. The aluminum ingot used is Al99.70 industrial pure aluminum ingot, and its impurity content is 0.06% Si, 0.17% Fe, 0.02% Cu, 0.001% Mg, 0.009% (Cr+Mn+V+Ti). The aluminum ingot, Al-10Fe alloy, Al-50Cu alloy, Al-10Mg alloy and Al-10Y-1B alloy are weighed accordin...

Embodiment 2

[0010] Embodiment 2: A non-heat treatment type medium-strength aluminum alloy conductor material, the conductor material is mainly composed of iron, copper, magnesium, lanthanum, boron alloy elements, inevitable impurity elements, silicon, chromium, manganese, vanadium, titanium and matrix Aluminum composition. The mass percentages of alloying elements are as follows: 0.50% Fe, 0.10% Cu, 0.013% Mg, 0.03% La, 0.003% B.

[0011] The preparation process of the above-mentioned non-heat-treated medium-strength aluminum alloy conductor material is as follows: Si≤0.11%, Fe≤0.30%, Cu≤0.05%, Mg≤0.04%, (Cr+Mn+V+Ti)≤0.015%, and the rest per The impurity content of impurity elements ≤ 0.03% requires the selection of aluminum ingots. The aluminum ingot used is Al99.70 industrial pure aluminum ingot, and its impurity content is 0.08% Si, 0.18% Fe, 0.022% Cu, 0.002% Mg, 0.011% (Cr+Mn+V+Ti). The aluminum ingot is weighed according to the mass percentage of the above alloy elements, and the ...

Embodiment 3

[0012] Embodiment 3: A non-heat treatment type medium-strength aluminum alloy conductor material, the conductor material is mainly composed of iron, copper, magnesium, yttrium, boron alloy elements, inevitable impurity elements, silicon, chromium, manganese, vanadium, titanium and matrix Aluminum composition. The mass percentages of alloying elements are as follows: 0.41% Fe, 0.25% Cu, 0.03% Mg, 0.026% Y, 0.0026% B.

[0013] The preparation process of the above-mentioned non-heat-treated medium-strength aluminum alloy conductor material is as follows: Si≤0.11%, Fe≤0.30%, Cu≤0.05%, Mg≤0.04%, (Cr+Mn+V+Ti)≤0.015%, and the rest per The impurity content of impurity elements ≤ 0.03% requires the selection of aluminum ingots. The aluminum ingot used is Al99.70 industrial pure aluminum ingot, and its impurity content is 0.10% Si, 0.23% Fe, 0.02% Cu, 0.0013% Mg, 0.013% (Cr+Mn+V+Ti). The aluminum ingot, Al-6Fe alloy, Al-20Cu alloy, Al-10Mg alloy and Al-10Y-1B alloy are weighed accordi...

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Abstract

The invention relates to a non-heat treatment medium-strength aluminum alloy conductor material and a preparation method thereof, and belongs to the technical field of electrotechnical materials. The non-heat treatment medium-strength aluminum alloy conductor material comprises the following elements in percentage by weight: 0.35%-0.50% of iron, 0.10%-0.25% of copper, 0.01%-0.04% of magnesium, 0.001%-0.002% of boron, 0.02%-0.04% of rare earth (lanthanum or yttrium), impurity element silicon less than or equal to 0.11%, s(chromium+manganese+vanadium+titanium) less than or equal to 0.015%, less than or equal to 0.03% of each of other impurity elements and the balance of aluminum. The non-heat treatment medium-strength aluminum alloy conductor material disclosed by the invention can be used for enhancing the processing hardening rate of an aluminum alloy material to enhance the strength through an iron-containing second phase, copper and magnesium atom enrichment regions and dislocation interaction and enhancing the conductivity and elongation of an aluminum alloy through the matching of the iron, the copper, the magnesium, the rare earth lanthanum or yttrium and the boron. A medium-strength aluminum alloy wire manufactured by adopting the non-heat treatment medium-strength aluminum alloy conductor material can be used for solving the problem of continuous production bottleneck generated due to heat treatment, saving the power consumption and time consumption of heat treatment and reducing the cost and achieves the outstanding economic benefit.

Description

technical field [0001] The invention belongs to the technical field of electrical materials, and in particular relates to a non-heat-treated medium-strength aluminum alloy conductor material and a preparation method thereof, which are used as a non-heat-treated medium-strength aluminum alloy conductor material for overhead power transmission lines. Background technique [0002] At present, with the grid-connected transmission of wind power and solar power generation and the development of overhead transmission lines to long-distance, ultra-high voltage, and ultra-high voltage, the energy saving and robustness of the power grid have become a hot spot of concern. In order to reduce energy consumption on transmission lines, the State Grid Corporation of China issued relevant enterprise standards for energy-saving wires and took the lead in carrying out demonstrations of high-conductivity steel-cored aluminum stranded wires and medium-strength all-aluminum alloy wires on new line...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03H01B1/02H01B13/00
Inventor 刘东雨韦艳妮郭强韩钰王迪陈威张子炀苗欢
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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