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Composite aluminium-alloy conductor and preparation method thereof

An aluminum alloy wire and aluminum block technology, applied in the field of wires, can solve the problems of low conductivity and elongation of aluminum alloy wires, and achieve the effect of high conductivity and elongation

Active Publication Date: 2015-01-07
STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem to be solved: The conductivity and elongation of conventional aluminum alloy wires are low, which cannot meet the needs of power transmission. Therefore, an aluminum alloy wire with higher conductivity and elongation is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A method for preparing a composite aluminum alloy wire. The preparation method includes the following steps: (1) Take an aluminum ingot and melt it at a high temperature in a vacuum melting furnace at a high temperature of 1500°C. After the aluminum ingot is melted, add Ta by weight to 1.2 wt%, Hf is 0.6wt%, Sc is 0.4wt%, Au is 0.6wt%, In is 0.7wt%, and the balance is Al; (2) After smelting at 1500℃ for 3h, the temperature is raised to 1700℃, and then High-temperature smelting for 5 hours; (3) Hot-rolling the smelted mixed metal liquid into alloy ingots, and then heat treatment, slowly lowering the heating temperature to room temperature to prepare aluminum alloy wire materials; (4) High-temperature drawing of aluminum alloy wire materials After stretching, a composite aluminum alloy wire is obtained after stretching.

Embodiment 2

[0012] A method for preparing a composite aluminum alloy wire. The preparation method includes the following steps: (1) Take an aluminum ingot and melt it at a high temperature in a vacuum melting furnace at a high temperature of 1500°C. After the aluminum ingot is melted, add Ta by weight to 0.4 wt%, Hf is 0.5wt%, Sc is 0.7wt%, Au is 0.9wt%, In is 0.5wt%, the balance is Al; (2) After smelting at 1500°C for 3h, the temperature is raised to 1700°C, and then High-temperature smelting for 5 hours; (3) Hot-rolling the smelted mixed metal liquid into alloy ingots, and then heat treatment, slowly lowering the heating temperature to room temperature to prepare aluminum alloy wire materials; (4) High-temperature drawing of aluminum alloy wire materials After stretching, a composite aluminum alloy wire is obtained after stretching.

Embodiment 3

[0014] A method for preparing a composite aluminum alloy wire. The preparation method includes the following steps: (1) Take an aluminum ingot and smelt it at a high temperature in a vacuum melting furnace at a high temperature of 1500℃. After the aluminum ingot is melted, add Ta by weight to 1.8 wt%, Hf is 0.9wt%, Sc is 0.2wt%, Au is 0.4wt%, In is 0.6wt%, and the balance is Al; (2) After smelting at 1500℃ for 3h, the temperature is raised to 1700℃, and then High-temperature smelting for 5 hours; (3) Hot-rolling the smelted mixed metal liquid into alloy ingots, and then heat treatment, slowly lowering the heating temperature to room temperature to prepare aluminum alloy wire materials; (4) High-temperature drawing of aluminum alloy wire materials After stretching, a composite aluminum alloy wire is obtained after stretching.

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Abstract

The invention belongs to the field of conductors, and relates to a composite aluminium-alloy conductor and a preparation method thereof. The composite aluminium-alloy conductor is composed of the following chemical compositions in percentage by weight: 0.4wt%-1.8wt% of Ta, 0.5wt%-0.9wt% of Hf, 0.2wt%-0.7wt% of Sc, 0.4wt%-0.9wt% of Au, 0.5wt%-0.7wt% of In, and the balance of Al. The preparation method comprises the following steps: (1) carrying out high-temperature melting on an aluminium block in a vacuum melting furnace at a temperature of 1700 DEG C, and after the aluminium block is melted, adding Ta, Hf, Sc, Au and In by weight; (2) smelting for 4 h at a temperature of 1900 DEG C; (3) rolling molten metal into an aluminium-alloy ingot by hot rolling, so that a composite aluminium-alloy conductor material is prepared; and (4) carrying out high-temperature tensile processing on the composite aluminium-alloy conductor material, so that a composite aluminium-alloy conductor is obtained.

Description

Technical field [0001] The invention belongs to the field of wires, and relates to an aluminum alloy wire and a preparation method thereof, in particular to a composite aluminum alloy wire with higher electrical conductivity and elongation and a preparation method thereof. Background technique [0002] The development of aluminum alloy wire in my country began in the early 1960s. At that time, batch trials were carried out in some areas. However, due to the limitations of the initial equipment, the product adopts a semi-continuous manufacturing process, and the performance of the aluminum alloy wire is very unstable. The phenomenon of stock breakage has affected the promotion and application of this product in my country. Later, after the continuous improvement of the manufacturing process of aluminum alloy wires, especially after the 1990s, with the improvement of the overall level of my country's industry, the improvement of technology and the improvement of equipment, the quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/02H01B1/02H01B5/02
Inventor 刘守明史宏伟韩爱芝
Owner STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY