Aluminum alloy material, aluminum alloy wire and preparation method of aluminum alloy wire

A technology of aluminum alloy materials and aluminum alloy wires, applied in the field of conducting aluminum alloys, can solve problems such as long time, difficulty, and high cost

Pending Publication Date: 2021-08-10
JIANGSU ZHONGTIAN TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this is due to the general level of the industry, and it is very difficult to increase the conductivity from 60% IACS to 61% IACS; The processing is complex, or the pro...

Method used

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  • Aluminum alloy material, aluminum alloy wire and preparation method of aluminum alloy wire
  • Aluminum alloy material, aluminum alloy wire and preparation method of aluminum alloy wire
  • Aluminum alloy material, aluminum alloy wire and preparation method of aluminum alloy wire

Examples

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preparation example Construction

[0040] Secondly, the present application provides a method for preparing an aluminum alloy wire, which includes the following steps:

[0041] S1. According to the formula of the aluminum alloy wire, after the aluminum liquid is obtained, iron source, silicon source, zirconium source, lanthanum source, cerium source and yttrium source are added to the aluminum liquid for melting to obtain an aluminum alloy melt.

[0042] Among them, the way to obtain the aluminum liquid can be obtained by first obtaining aluminum ingots, and then melting the aluminum ingots. In order to avoid the introduction of impurities, the aluminum ingots can be aluminum ingots with a purity of not less than 99.7%. In addition, the way to obtain liquid aluminum can also be to directly use electrolytic aluminum liquid.

[0043] Wherein, by mass percentage, the formula includes the following ingredients:

[0044] Fe 0.1%-0.25%, Si 0.01%-0.05%, Zr 0.02%-0.3%, M 0.1%-1%, Y0.02%-0.3%, the total content of Mn, ...

Embodiment 1

[0067] An aluminum alloy wire, which is prepared by the following preparation method:

[0068] (1) Prepare raw materials according to Example 1 in Table 1: master alloys as iron source, silicon source, zirconium source, lanthanum source, cerium source and yttrium source, and an aluminum ingot with a purity of 99.7%.

[0069] (2) Melt the aluminum ingot with a purity of 99.7% in the holding furnace, and then accurately put in the rest of the raw materials for smelting, so that in the molten aluminum alloy obtained by smelting, by mass percentage, Fe 0.166%, Si 0.023%, Zr 0.047 %, M0.112%, Y 0.044%, the total content of Mn, V, Ti and Cr is controlled at ≤0.01%, and the balance is Al; wherein, the mass ratio of Fe to Si is 7.2.

[0070] (3) Use powder spraying refining agent in the holding furnace to remove slag and degas, and purify the furnace.

[0071] (4) Sampling the aluminum alloy liquid in the holding furnace to verify that the content of each element is qualified.

[00...

Embodiment 2-5

[0081] The preparation methods of Examples 2-5 are similar to those of Example 1, the only difference being the parameters shown in Table 3. In Examples 1-5, M is 35% La and 65% Ce (mass percentage).

[0082] The parameter of table 3 embodiment 1-5

[0083]

[0084] Wherein, the structure and composition of the wires of Examples 1-5 after heat treatment are similar to those of Example 1, which are α-Al matrix and dispersed and precipitated Al-Zr-Y heat-resistant phase.

[0085] For the rods obtained in Examples 1-5 and the twisted single wires of the aluminum alloy conductors, the electrical conductivity and tensile strength were tested according to GB / T30551-2014, wherein the strength residual rate refers to the single wire heated at 230°C / 1h. The treatment method of silk is used to obtain the ratio of its strength retention rate to the initial measured value at room temperature (survival rate) to characterize its heat resistance.

[0086] The results are shown in Table ...

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Abstract

The invention discloses an aluminum alloy material, an aluminum alloy wire and a preparation method of the aluminum alloy wire, and relates to the field of aluminum alloys. The aluminum alloy material comprises, by mass, 0.1%-0.25% of Fe, 0.01%-0.05% of Si, 0.02%-0.3% of Zr, 0.1%-1% of M, 0.02%-0.3% of Y, Mn, V, Ti, Cr and the balance is Al, wherein the total content of Mn, V, Ti and Cr is controlled to be smaller than or equal to 0.01%, the mass ratio of Fe to Si is 2-8, and M is composed of La and Ce. According to the aluminum alloy material, specific components are selected according to a specific ratio, on the basis that the cost is not obviously increased, the heat resistance and the mechanical property of the aluminum alloy material are effectively considered and enhanced, the conductivity is improved, and the aluminum alloy material has excellent commercial application value.

Description

technical field [0001] The present application relates to the field of conductive aluminum alloys, in particular, to an aluminum alloy material, an aluminum alloy wire and a preparation method thereof. Background technique [0002] Heat-resistant aluminum alloy wire is a commonly used wire product for line capacity expansion and transformation. It can be used to replace the commonly used old steel-cored aluminum stranded wire in existing line corridors and facility conditions. It is an effective solution to achieve line capacity increase and reduce line loss. However, due to the mutual restriction of the conductivity and heat resistance of the aluminum alloy, it is extremely difficult to improve the conductivity of the aluminum alloy wire under the premise of ensuring the heat resistance. [0003] The single-wire conductivity of common heat-resistant aluminum alloy wires for engineering applications at home and abroad has been hovering at 60% IACS for a long time. The nation...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03B22D1/00B22D43/00C21D9/00C22F1/04H01B7/00H01B13/00H01B13/02
CPCC22C21/00C22C1/026C22C1/03B22D1/00B22D43/004C21D9/0075C22F1/04H01B7/0009H01B13/02H01B13/00
Inventor 缪姚军周峰缪小林徐春建洪小红
Owner JIANGSU ZHONGTIAN TECH CO LTD
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