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High-conductivity heat-resisting aluminum alloy monofilament material and preparation method thereof

An aluminum alloy monofilament, high conductivity technology, applied in the direction of metal/alloy conductors, etc., can solve the problems of large loss and low conductivity of power transmission lines, reduce production costs, reduce impurity content, improve thermal stability and high temperature The effect of creep resistance

Active Publication Date: 2015-09-09
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-conductivity heat-resistant aluminum alloy monofilament material to solve the technical problem of conventional 60% IACS heat-resistant aluminum alloy wire with low conductivity and large transmission line loss

Method used

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  • High-conductivity heat-resisting aluminum alloy monofilament material and preparation method thereof
  • High-conductivity heat-resisting aluminum alloy monofilament material and preparation method thereof
  • High-conductivity heat-resisting aluminum alloy monofilament material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A high-conductivity heat-resistant aluminum alloy monofilament material, the components and their mass percentages are:

[0033]

[0034]

[0035] The preparation method of the above-mentioned high-conductivity heat-resistant aluminum alloy monofilament material comprises the following steps:

[0036] 1) Smelting: melting industrial pure aluminum ingots and Al-B master alloy at 730°C and standing still for 30 minutes, then removing slag, then melting Al-Zr alloy and Sn with a purity of 99.95% at 750°C;

[0037] 2) Refining: Refining molten aluminum with refining agent at 720°C for 15 minutes, standing still for 40 minutes and removing slag;

[0038] 3) Casting: pour the aluminum alloy liquid into a copper casting mold at 700°C to obtain an aluminum alloy ingot of 22×22×380mm;

[0039] 4) Rod making: heat the aluminum alloy ingot prepared in step 3) for 1 hour at 510°C, and then roll it into an aluminum alloy round rod with a diameter of Ф9.5mm;

[0040] 5) Wire dr...

Embodiment 2

[0043] A high-conductivity heat-resistant aluminum alloy monofilament material, the components and their mass percentages are:

[0044]

[0045] The preparation method of the above-mentioned high-conductivity heat-resistant aluminum alloy monofilament material comprises the following steps:

[0046] 1) Smelting: melting industrial pure aluminum ingots and Al-B master alloy at 735°C and standing still for 30 minutes, then removing slag, and then melting Al-Zr alloy and Sn with a purity of 99.95% at 750°C;

[0047] 2) Refining: Refining molten aluminum with refining agent at 725°C for 15 minutes, standing still for 40 minutes and removing slag;

[0048] 3) Casting: pour the aluminum alloy liquid into a copper casting mold at 705°C to obtain an aluminum alloy ingot of 22×22×380mm;

[0049] 4) Rod making: heat the aluminum alloy ingot prepared in step 3) for 1 hour at 515°C, and then roll it into an aluminum alloy round rod with a diameter of Ф9.5mm;

[0050] 5) Wire drawing:...

Embodiment 3

[0053] A high-conductivity heat-resistant aluminum alloy monofilament material, the components and their mass percentages are:

[0054]

[0055] The preparation method of the above-mentioned high-conductivity heat-resistant aluminum alloy monofilament material comprises the following steps:

[0056] 1) Smelting: melting industrial pure aluminum ingots and Al-B master alloy at 740°C and standing for 30 minutes, then removing slag, then melting Al-Zr alloy and Sn with a purity of 99.95% at 750°C;

[0057] 2) Refining: Refining molten aluminum with refining agent at 730°C for 15 minutes, standing still for 40 minutes and removing slag;

[0058] 3) Casting: pour the aluminum alloy liquid into a copper casting mold at 710°C to obtain an aluminum alloy ingot of 22×22×380mm;

[0059] 4) Rod making: heat the aluminum alloy ingot prepared in step 3) for 1 hour at 520°C, and then roll it into an aluminum alloy round rod with a diameter of Ф9.5 mm;

[0060] 5) Wire drawing: at 40° C...

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Abstract

The invention provides a high-conductivity heat-resisting aluminum alloy monofilament material and a preparation method thereof. The aluminum alloy monofilament material comprises raw materials in percentage by mass as follows: 0.002%-0.03% of B, 0.02%-0.10% of Sn, 0.018%-0.030% of Zr, 0.001%-0.06% of Si, 0.001%-0.15% of Fe, smaller than or equal to 0.01% of V, Ti, Cr and Mn and the balance of aluminum. The aluminum alloy monofilament material is prepared through smelting, refining, casting, rod making and wire drawing. The conductivity of the prepared heat-resisting aluminum alloy monofilament material is larger than or equal to 61.2% according to IACS (international annealed copper standard), the tensile strength is larger than or equal to 165 MPa, the elongation percentage is larger than 2.0%, the heat-resistance temperature is higher than or equal to 150 DEG C, and the residual strength ratio is larger than 90% after the material is heated for 1 hour at the temperature of 230 DEG C.

Description

technical field [0001] The invention belongs to the technical field of overhead wires for transmission lines in the electric power industry, and in particular relates to a high-conductivity heat-resistant aluminum alloy monofilament material and a preparation method thereof. Background technique [0002] The heat-resistant aluminum alloy wire has the characteristics of low sag and capacity increase, and can be used for line reconstruction without replacing poles and towers. The operating temperature can be raised to above 120°C, and the carrying capacity can be increased by more than 40%. It is especially suitable for new large-capacity transmission lines And the expansion and transformation of old lines in densely populated areas. The heat-resistant aluminum alloy material used in the heat-resistant aluminum alloy wire has a conductivity of ≤60% IACS (International Annealing Copper Standard, International Annealed Copper Standard) at 20°C. In addition, it is generally nece...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/02H01B1/02
Inventor 祝志祥陈保安韩钰张强潘学东陈新杨长龙史宏伟赵蕊冯砚厅于鑫刘君杨印符少朋
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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