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High-electric-conductivity Ba and Re-contained aluminum alloy for copper-clad aluminum conductor and machining process thereof

A copper-clad aluminum wire, high conductivity technology, applied in the field of alloys, can solve the problems of aluminum-barium alloy research, development and application limitations, castings are prone to flux inclusions, cumbersome processes, etc., to achieve excellent filling performance and metal liquid suction The effect of small sex and good fluidity

Inactive Publication Date: 2018-07-20
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantages of high cost to varying degrees, flux inclusions in castings, and complicated equipment.
Therefore, the research, development and application of aluminum-barium alloys are limited.
Therefore, in the industrial and national defense fields that are in urgent need of large-scale use of aluminum-barium alloys, there has always been a current situation that needs to be overcome, such as low output, cumbersome processes, and high costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-conductivity aluminum alloy containing Ba and Re for smelting copper clad aluminum wire at 750 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ba: 0.9wt.%, Re: 0.3wt.%; Zr: 0.2wt.%, Zn: 0.6wt.%, Pd: 0.1wt.%, Te: 0.5wt .%, the balance is aluminum. The preparation method of the alloy: Put the raw materials in the above proportion into an induction electric furnace protected by the atmosphere, and use a silicon carbide crucible; induction heating to 750 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; After standing at 750°C for 10 minutes, it is poured into the hot top and the same level equipment for semi-continuous casting into the required square ingots and round ingots. The downward moving speed of the ingot is 14m / min. The ingot can be used as an extrusion raw material for extruding and preparing aluminum wires of various diameters; and can be combined with the ...

Embodiment 2

[0021] A high-conductivity aluminum alloy containing Ba and Re for smelting copper clad aluminum wire at 770 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ba: 1.2wt.%, Re: 0.3wt.%; Zr: 0.2wt.%, Zn: 0.6wt.%, Pd: 0.1wt.%, Te: 0.5wt .%, the balance is aluminum. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction electric furnace, and use a silicon carbide crucible; induction heating to 770 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 770°C for 10 minutes, it is cast into the hot top and the same level equipment for semi-continuous casting into the required square ingots and round ingots. The downward moving speed of the ingot is 15m / min. The ingot can be used as an extrusion raw material for extruding and preparing aluminum wires of various diameters; and can be combined w...

Embodiment 3

[0024] A high-conductivity aluminum alloy containing Ba and Re for smelting copper clad aluminum wire at 790 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ba: 1.4wt.%, Re: 0.3wt.%; Zr: 0.3wt.%, Zn: 0.6wt.%, Pd: 0.2wt.%, Te: 0.6wt .%, the balance is aluminum. The preparation method of the alloy: Put the raw materials in the above proportion into an induction electric furnace protected by the atmosphere, and use a silicon carbide crucible; induction heating to 790 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; After standing at 790°C for 10 minutes, it is cast into the hot top and the same level equipment for semi-continuous casting into the required square ingots and round ingots. The downward moving speed of the ingot is 16m / min. The ingot can be used as an extrusion raw material for extruding and preparing aluminum wires of various diameters; and can be combined with the su...

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Abstract

The invention discloses a high-electric-conductivity Ba and Re-contained aluminum alloy for a copper-clad aluminum conductor and a machining process thereof. The alloy comprises the following components in percentage by weight: 0.8-1.5 wt.% of Ba, 0.2-0.4 wt.% of Re, 0.2-0.3 wt.% of Zr, 0.5-0.8 wt.% of Zn, 0.1-0.2 wt.% of Pd, 0.5-0.8 wt.% of Te, and the balance of aluminum. The aluminum rhenium alloy achieves excellent mechanical performances and electric conductivity, which are not possessed by a traditional aluminum alloy for the copper-clad aluminum conductor. The alloy achieves wide purposes in the electric appliance manufacturing industry, the electric wire and cable industry and the radio industry.

Description

Technical field [0001] The invention relates to the technical field of alloys, in particular to an aluminum barium alloy. Background technique [0002] Both copper and aluminum are good materials for conducting wires, but copper is not suitable for long-distance transmission lines because of its high density and cannot be pulled over long distances; aluminum has low density and can be pulled over longer distances, but its conductivity is worse than copper One piece. The conductivity of aluminum is second only to silver and copper. Although its conductivity is only 2 / 3 of copper, its density is only 1 / 3 of copper. Therefore, the quality of aluminum wire is only half that of copper wire for the same amount of electricity. [0003] Aluminum is not only inferior to copper in electrical conductivity, but also in strength and corrosion resistance. In the 1970s, due to lack of copper resources, it was promoted to replace copper wires with aluminum. However, shortcomings continued to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02C22F1/04C22F1/02H01B1/02H01B13/00
CPCC22C21/00C22C1/026C22F1/02C22F1/04H01B1/023H01B13/00
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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