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Electroconductive Al alloy material and preparation method thereof

An aluminum alloy material and alloy technology, applied in the field of conductive aluminum alloy material and its preparation, can solve the problems of high technical complexity and high production cost, and achieve the effects of excellent mechanical properties, high dimensional stability and good conductivity

Inactive Publication Date: 2017-04-26
湖北万佳宏铝业股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In order to overcome the deficiencies in the existing production process of conductive aluminum alloy materials such as high technical complexity and high production cost, the present invention provides a conductive aluminum alloy material and a preparation method thereof

Method used

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Embodiment

[0029] A conductive aluminum alloy material, the formula is: according to the mass percentage, each element and its content are: silicon Si 8.5%, magnesium Mg 1.5%, copper Cu 1.5%, zirconium Zr 0.5%, rare earth 1.0%, inevitable impurity elements The sum ≤ 0.1%, the balance is aluminum Al, and the sum of each component is 100%.

[0030] In the above formula, aluminum-silicon alloy is selected as the ingot raw material, magnesium is added in the form of aluminum-magnesium master alloy, copper is added in the form of 10 μm powder, and rare earth is added in the form of rare earth powder.

[0031] A method for preparing a conductive aluminum alloy material, comprising the steps of:

[0032] 1) Melting aluminum ingot: Add aluminum-silicon alloy into the melting furnace, control the temperature at 770°C to melt it, and keep it warm for 12 minutes. By adding aluminum or silicon, the elemental silicon accounts for 8.5% of the total mass of the melt;

[0033] 2) Magnesium-copper addit...

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Abstract

The invention discloses an electroconductive Al alloy material and a preparation method thereof. The formula of the Al alloy material is that the Al alloy material comprises the following elements in percentage by mass: 3.5-18.5% of Si, 0.05-2.5% of Mg, 0.5-2.5% of Cu, 0.1-0.6% of Zr, 0.1-1.55% of rare earth, 0-0.15% of inevitable impurity elements and Al in balancing amount; and the sum of the masses of the elements is 100%. The raw materials of the Al alloy material include an Al-Si alloy, an Al-Mg alloy, 10 mu m of Cu powder, rare earth powder and 2-3 mu m of Zr powder. The preparation method of the Al alloy material comprises the steps of melting an Al ingot, adding Al and Cu, adding Zr, adding rare earth, performing casting, performing quenching, performing aging treatment and the like. The Al alloy material prepared according to the preparation method has the advantages of good electric conductivity, high airtightness, excellent mechanical property and the like, meets the material performance requirements of power transmission and transformation equipment in the electric industry, is not limited in size and shape and can be applied to a wide range of occasions and fields.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a conductive aluminum alloy material and a preparation method thereof. Background technique [0002] Aluminum is a silver-white metal with a low density of only 2.79 / cm 3 , about the density of steel, copper or brass (respectively 7.839 / cm 3 , 8.939 / cm 3 ) of 1 / 3. Good electrical conductivity and thermal conductivity, high plasticity, good corrosion resistance, etc. The surface of aluminum is highly reflective, and radiant energy, visible light, radiant heat and electric waves can be effectively reflected by aluminum, while anodized and dark-colored anodes The oxidized surface can be reflective or absorptive, and polished aluminum has excellent reflectivity in a wide wavelength range, so it has various decorative and reflective uses. The chemical properties of aluminum are active, and it is easy to combine with oxygen in the air. A dense and firm aluminum ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/02
CPCC22C21/02C22C1/026
Inventor 张友孝
Owner 湖北万佳宏铝业股份有限公司
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