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High-conductivity compressive-creep-resistant aluminum alloy and manufacturing method thereof

A manufacturing method and technology of aluminum alloy, applied in the direction of metal/alloy conductors, etc., can solve the problems of potential safety hazards, prone to corrosion, poor compressive creep performance, etc., to reduce the cost of use, improve creep resistance, thermal good stability

Active Publication Date: 2015-12-09
深圳阿尔泰克轻合金技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is that the aluminum alloy conductor material in the prior art has poor compressive creep resistance and is prone to corrosion, resulting in potential safety hazards, thus proposing a high conductivity and excellent compressive creep performance Aluminum alloy material and method for manufacturing same

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  • High-conductivity compressive-creep-resistant aluminum alloy and manufacturing method thereof

Examples

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Embodiment 1

[0030] This embodiment provides a highly conductive compressive and creep-resistant aluminum alloy, which comprises the following components in terms of mass percentage: 1.5% copper, 1.5% magnesium, 0.25% rare earth, 0.7% iron, and 96.05% aluminum.

[0031] The manufacturing method of the highly conductive compressive creep aluminum alloy comprises the following steps:

[0032] (1) Pretreatment of alloy raw materials: According to the mass percentage of each raw material, add aluminum powder and molten salt to the purified copper powder and iron powder respectively, and after fully mixing, press them into copper-aluminum alloy and iron-aluminum alloy ingots , in the alloy billet, the contents of copper and iron respectively account for 70-90% of the alloy billet. In this embodiment, the copper content in the copper-aluminum alloy billet is 80%, and the iron in the iron-aluminum alloy billet The content of iron is 80%, and the rest is molten salt; the particle size of the metal...

Embodiment 2

[0037] This embodiment provides a highly conductive compressive and creep-resistant aluminum alloy, which comprises the following components in terms of mass percentage: 0.25% copper, 0.3% magnesium, 0.03% rare earth, 0.3% iron, and 99.12% aluminum.

[0038] The manufacturing method of the highly conductive compressive creep aluminum alloy comprises the following steps:

[0039] (1) Pretreatment of alloy raw materials: According to the mass percentage of each raw material, add aluminum powder and molten salt to the purified copper powder and iron powder respectively, and after fully mixing, press them into copper-aluminum alloy and iron-aluminum alloy ingots , in the copper-aluminum alloy ingot, the copper content is 70%, in the iron-aluminum alloy, the iron content is 90%, and the rest is molten salt; the particle size of the metal powder used to make the ingot is not greater than 50 mesh, and the The water content in the ingot is less than 0.01%, and the total amount of orga...

Embodiment 3

[0044] This embodiment provides a highly conductive compressive and creep-resistant aluminum alloy, which comprises the following components in terms of mass percentage: 2.5% copper, 2.8% magnesium, 0.5% rare earth, 1.2% iron, and 93% aluminum.

[0045] The manufacturing method of the highly conductive compressive creep aluminum alloy comprises the following steps:

[0046] (1) Pretreatment of alloy raw materials: According to the mass percentage of each raw material, add aluminum powder and molten salt to the purified copper powder and iron powder respectively, and after fully mixing, press them into copper-aluminum alloy and iron-aluminum alloy ingots , in the copper-aluminum alloy ingot, the copper content is 90%, in the iron-aluminum alloy, the iron content is 70%, and the rest is molten salt; the particle size of the metal powder used to make the ingot is not greater than 50 mesh, and the The water content in the ingot is less than 0.01%, and the total amount of organic s...

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Abstract

The invention discloses a high-conductivity compressive-creep-resistant aluminum alloy. The high-conductivity compressive-creep-resistant aluminum alloy comprises the following components in percentage by mass: 0.25%-2.5% of copper, 0.3%-2.8% of magnesium, 0.03%-0.5% of rare earth, 0.3%-1.2% of iron and the balance of aluminum. The invention further discloses a manufacturing method for the high-conductivity compressive-creep-resistant aluminum alloy. The manufacturing method comprises the following steps: (1) pre-treating an alloy raw material; (2) carrying out batching, melting and in-furnace treatment on the alloy raw material; (3) carrying out online refining treatment on a molten aluminum alloy; and (4) casting and forming the alloy. The obtained aluminum alloy material not only has high tensile strength and yield limit, but also has excellent electrical conductivity, and good thermal stability of a resistor at a high temperature; more importantly, at the high temperature, the aluminum alloy material has very excellent compressive creep resistance, is a major breakthrough of replacing copper with aluminum in the electrotechnical industry, greatly solves the defect caused by creep property difference in an aluminum alloy conductor material application process, and meets performance requirements of the aluminum alloy material while applied in the electrotechnical industry.

Description

technical field [0001] The invention belongs to the field of metal materials, and relates to an aluminum alloy material, in particular to a high-conductivity anti-compression creep aluminum alloy and a manufacturing method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Its density is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and Corrosion resistance. At present, in the field of electrical conductors, "using aluminum to save copper" and using new aluminum alloy conductors to replace copper conductors and aluminum conductors has become an international development trend. Aluminum alloy conductors are characterized by their excellent draw-to-weight ratio, high elongation, Tensile strength and electrical condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/16C22C21/06C22C1/03C22C1/06H01B1/02
Inventor 庆毅黄君之董晓菁颜奇辉张林
Owner 深圳阿尔泰克轻合金技术有限公司
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