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Moderate-intensity anti-corrosion aluminium alloy material and aluminium alloy rod for cable

A corrosion-resistant aluminum alloy and strength technology, applied in the field of aluminum alloys, can solve the problems that aluminum alloy materials cannot obtain performance, shorten the service life of aluminum alloy products, and the formula and process are not very reasonable, and achieve the elimination of unevenness and reasonable deformation. , the effect of high mechanical strength

Active Publication Date: 2015-08-19
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of society, people have put forward higher requirements for the quantity and quality of aluminum alloy materials. At present, due to the continuous improvement of product performance requirements, the existing aluminum alloy materials have unreasonable formulas and processes. Alloy materials cannot obtain ideal performance, and there is a problem of poor corrosion resistance during use, which shortens the service life of aluminum alloy products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A medium-strength corrosion-resistant aluminum alloy material proposed by the present invention, its composition includes by mass fraction: 0.25% iron, 0.1% silicon, 1.5% magnesium, 0.01% boron, 1.8% copper, 3.5% zinc, 0.15% rare earth, and The amount is aluminum; wherein, the composition of the rare earth includes by weight: 10 parts of La, 20 parts of Dy, 8 parts of Nd, 5 parts of Sm, 1 part of Eu, and 25 parts of Ce;

[0023] According to the above composition ratio, the medium-strength corrosion-resistant aluminum alloy material is prepared according to the following process:

[0024] S1. Keep the aluminum ingot at 670°C for 35 minutes, heat up to 720°C, and then add aluminum-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, aluminum-copper alloy, aluminum-zinc alloy, magnesium ingot Carry out smelting to form an alloy liquid, and then refine at 740°C for 20 minutes, wherein the amount of refining agent added is 0.35% of the weight...

Embodiment 2

[0028] A medium-strength corrosion-resistant aluminum alloy material proposed by the present invention, its composition includes by mass fraction: 0.18% of iron, 0.5% of silicon, 0.5% of magnesium, 0.03% of boron, 1% of copper, 5.3% of zinc, 0.1% of rare earth, and The amount is aluminum; wherein, the composition of the rare earth includes by weight: 15 parts of La, 15 parts of Dy, 15 parts of Nd, 2 parts of Sm, 5 parts of Eu, and 10 parts of Ce;

[0029] According to the above composition ratio, the medium-strength corrosion-resistant aluminum alloy material is prepared according to the following process:

[0030] S1. Heat the aluminum ingot at 700°C for 20 minutes, heat up to 750°C, and then add aluminum-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, aluminum-copper alloy, aluminum-zinc alloy, magnesium ingot Carry out smelting to form an alloy liquid, and then refine at 730°C for 30 minutes, wherein the amount of refining agent added is...

Embodiment 3

[0034] A medium-strength corrosion-resistant aluminum alloy material proposed by the present invention, its composition includes by mass fraction: 0.2% iron, 0.4% silicon, 0.6% magnesium, 0.023% boron, 1.2% copper, 4.3% zinc, 0.11% rare earth, and The amount is aluminum; wherein, the composition of the rare earth includes by weight: 14.5 parts of La, 16 parts of Dy, 13 parts of Nd, 3 parts of Sm, 4 parts of Eu, and 18 parts of Ce;

[0035] According to the above composition ratio, the medium-strength corrosion-resistant aluminum alloy material is prepared according to the following process:

[0036]S1. Keep the aluminum ingot at 678°C for 32 minutes, heat up to 729°C, and then add aluminum-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, aluminum-copper alloy, aluminum-zinc alloy, magnesium ingot Smelting is carried out to form an alloy liquid, and then refined at 733°C for 28 minutes, wherein the amount of refining agent added is 0.38% of t...

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Abstract

The invention discloses a moderate-intensity anti-corrosion aluminium alloy material and an aluminium alloy rod for a cable. The moderate-intensity anti-corrosion aluminium alloy material comprises the components of iron, silicon, magnesium, boron, copper, zinc, rare earth and the balance of aluminium; in a preparation process, an aluminium ingot, aluminum-boron alloy, aluminum-silicon alloy, aluminum-iron alloy, aluminum-rare earth alloy, aluminum-copper alloy, aluminum-zinc alloy and a magnesium alloy ingot are smelted to form alloy liquid, the alloy liquid is refined and stands by thermal insulation, component regulation is performed, then casting is performed to obtain a cast ingot, and homogenization treatment is performed on the cast ingot to obtain a homogenized cast ingot; the homogenized cast ingot is water-cooled, then hot rolling is performed, and the cast ingot is cooled to be below 100 DEG C to obtain hot rolling aluminum alloy; the hot rolling aluminum alloy is heated, kept warm and then cooled to room temperature, and precipitation heat treatment is performed to obtain the moderate-intensity anti-corrosion aluminium alloy material. The moderate-intensity anti-corrosion aluminium alloy material and the aluminium alloy rod for the cable are high in mechanical strength, good in corrosion resistance and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a medium-strength corrosion-resistant aluminum alloy material and an aluminum alloy rod for cables. Background technique [0002] At present, with the development of conductor alloying, transmission wires using aluminum alloy materials as conductor materials and reinforcement materials are also widely used at home and abroad. The representative types include all aluminum alloy stranded wires and aluminum alloy cored aluminum stranded wires. The all-aluminum alloy stranded wire is composed of the same material, the manufacturing process is very simple, and it has many advantages in engineering applications. With the development of society, people have put forward higher requirements for the quantity and quality of aluminum alloy materials. At present, due to the continuous improvement of product performance requirements, the existing aluminum alloy materials have unreasona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/03C22F1/053
Inventor 赵建军吴建杰徐国锋
Owner ANHUI ELECTRIC GRP SHARES
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