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A high-strength aluminum alloy wire and its preparation method

An aluminum alloy wire, high-strength technology, applied in the field of wires, can solve the problems of low physical properties, low strength, and limit large-scale use, and achieve the effects of high electrical conductivity, expanded application, and improved physical properties

Active Publication Date: 2016-08-24
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

The aluminum wire prepared by it has high electrical conductivity, but the strength is not high, and we still need to further improve it.
[0003] At present, the tensile strength and tensile elongation of conventional aluminum alloy wires are not high. Due to its low physical properties in use, it limits its large-scale use in circuits. Therefore, it is necessary to develop a new High-strength aluminum alloy wire and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) The aluminum block is smelted at a high temperature in a vacuum melting furnace. The high-temperature melting temperature is 1550°C. After the aluminum block is melted, Co, Pt, W, Zr, Cu and Al are added by weight. After adding the above chemical components, the chemical The weight percentage of the composition is 1.1wt% for Co, 0.3wt% for Pt, 0.5wt% for W, 0.4wt% for Zr, 1.2wt% for Cu, and the balance is Al; (2) The temperature of the vacuum melting furnace is raised to 1750°C, the heating rate is 20°C / min, smelting at 1750°C for 3h; (3) Hot rolling the molten metal into an aluminum alloy ingot, and then performing heat treatment, and slowly lowering the heating temperature to room temperature to prepare high-strength aluminum Alloy wire material; (4) The aluminum alloy wire material is subjected to high-temperature stretching treatment, and a high-strength aluminum alloy wire is obtained after stretching.

Embodiment 2

[0013] (1) The aluminum block is smelted at a high temperature in a vacuum melting furnace. The high-temperature melting temperature is 1550°C. After the aluminum block is melted, Co, Pt, W, Zr, Cu and Al are added by weight. After adding the above chemical components, the chemical The weight percent of the composition is 0.6wt% for Co, 0.2wt% for Pt, 0.4wt% for W, 0.2wt% for Zr, 1.5wt% for Cu, and the balance is Al; (2) The temperature of the vacuum melting furnace is raised to 1750°C, the heating rate is 20°C / min, smelting at 1750°C for 3h; (3) Hot rolling the molten metal into an aluminum alloy ingot, and then performing heat treatment, and slowly lowering the heating temperature to room temperature to prepare high-strength aluminum Alloy wire material; (4) The aluminum alloy wire material is subjected to high-temperature stretching treatment, and a high-strength aluminum alloy wire is obtained after stretching.

Embodiment 3

[0015] (1) The aluminum block is smelted at a high temperature in a vacuum melting furnace. The high-temperature melting temperature is 1550°C. After the aluminum block is melted, Co, Pt, W, Zr, Cu and Al are added by weight. After adding the above chemical components, the chemical The weight percentage of the composition is 1.3wt% for Co, 0.3wt% for Pt, 0.7wt% for W, 0.5wt% for Zr, 0.9wt% for Cu, and the balance is Al; (2) The temperature of the vacuum melting furnace is raised to 1750°C, the heating rate is 20°C / min, smelting at 1750°C for 3h; (3) Hot rolling the molten metal into an aluminum alloy ingot, and then performing heat treatment, and slowly lowering the heating temperature to room temperature to prepare high-strength aluminum Alloy wire material; (4) The aluminum alloy wire material is subjected to high-temperature stretching treatment, and a high-strength aluminum alloy wire is obtained after stretching.

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Abstract

The invention belongs to the field of wires and relates to a high-strength aluminum alloy wire. The high-strength aluminum alloy wire is composed of the following chemical components according to the weight ratio: Co is 0.6wt% to 1.3wt%, and Pt is 0.2wt% to 0.3wt%, W is 0.4wt%-0.9wt%, Zr is 0.2wt%-0.5wt%, Cu is 0.9wt%-1.5wt%, and the balance is Al. The preparation method includes the following steps: (1) Melting the aluminum block at a high temperature in a vacuum melting furnace at a temperature of 1550°C, when the aluminum block is melted, adding Co, Pt, W, Zr, Cu and Al by weight; ( 2) Raise the temperature of the vacuum melting furnace to 1750°C, and smelt at 1750°C for 3 hours; (3) Hot-roll into aluminum alloy ingots to prepare high-strength aluminum alloy wire materials; (4) High-temperature stretching treatment, after stretching, obtain High-strength aluminum alloy wires.

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 high-strength aluminum alloy wire with high tensile strength and tensile elongation and a preparation method thereof. Background technique [0002] High-strength aluminum alloy wire has good comprehensive performance. The high-strength aluminum alloy wire has high tensile strength, good sag performance, high surface hardness of the wire, wear resistance and pressure resistance, and easy construction and crimping. The wire does not have hysteresis loss and eddy current loss under the action of AC voltage. The technical and economic effect is better. High-strength aluminum alloy conductors are not only suitable for reconstructing lines, but also have good application prospects for new lines, especially urban lines. Patent Nos. CN200910232865.X and CN201010153441.7 disclose aluminum wires and their products. CN200910232...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C21/12H01B1/02C22C1/02
Inventor 史宏伟刘守明韩爱芝张洪涛
Owner STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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