Aluminum alloy material with good conductivity and production method thereof

A technology of aluminum alloy materials and electrical conductivity, applied in the field of aluminum alloy materials, can solve the problems of low hardness, brittleness and easy breakage of aluminum alloys

Active Publication Date: 2021-07-06
鹰潭市林兴建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aluminum is cheap, has good electrical conductivity and corrosion resistance. In recent years, due to the need to save energy, it has received great attention in various fields, but the disadvantages of aluminum are also very obvious. Due to the poor mechanical properties of aluminum and low hardness , leading to its inability to be widely used in high-tech fields such as aerospace and chips. Therefore, it is necessary to add other trace metals to increase the conductivity and mechanical properties of aluminum. As a result, oxides are mixed in the alloy when the alloy is prepared after ingot casting, resulting in the prepared aluminum alloy being brittle, easy to break, and the thermal conductivity is reduced at the same time. In order to adapt to the current development, there is an urgent need for a high electrical conductivity, better mechanical properties, Aluminum alloy with better thermal conductivity, and its preparation method needs to be optimized to reduce its oxide inclusions

Method used

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  • Aluminum alloy material with good conductivity and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An aluminum alloy material with good electrical conductivity, the basic components are 4% Cu, 0.5% Ag, 0.2% Al-B master alloy, 0.002% Ti, 0.001% V, 2.3% Re, the balance is Al;

[0031] The preparation method of the aluminum alloy material comprises the following steps:

[0032] S1. Melt the raw material Al at 650°C to obtain an Al melt, put the Al-B intermediate alloy, Cu raw material and Ag raw material into the Al melt, keep it at 600°C for 1.5h, let it stand for precipitation to remove borides, and then put into the coolant for rapid cooling to obtain the first treated material;

[0033] S2. Put the first treatment material at a temperature of 200° C., keep it warm for 2 hours, then raise the temperature to 300° C., hold it for a second time for 3 hours, and pulverize it after cooling to obtain the second treatment material;

[0034] S3. Put the second treatment material, Ti powder, V powder and Re powder into the high-energy ball mill together, add ball milling me...

Embodiment 2

[0037] An aluminum alloy material with good electrical conductivity, the basic components are 4% Cu, 0.5% Ag, 0.2% Al-B master alloy, 0.002% Ti, 0.001% V, 2.3% Re, the balance is Al;

[0038] The preparation method of the aluminum alloy material comprises the following steps:

[0039] S1. 99.7% pure aluminum is heated and melted into molten aluminum. When the temperature reaches 700°C, add sodium tetraborate with a weight of 2% of the weight of the molten aluminum into the molten aluminum. At the same time, carry out electromagnetic stirring for 8 minutes, and then heat up to 1000°C for 15 minutes. Electromagnetic stirring was performed for 5 minutes during the heat preservation process to obtain the first treatment solution;

[0040] Cooling the ingot from the first treatment solution to obtain an Al-B master alloy;

[0041] The raw material Al is melted at 650°C to obtain the Al melt, and the Al-B intermediate alloy, Cu raw material and Ag raw material are put into the Al ...

Embodiment 3

[0046] An aluminum alloy material with good electrical conductivity, the basic components are 4% Cu, 0.5% Ag, 0.2% Al-B master alloy, 0.002% Ti, 0.001% V, 2.3% Re, the balance is Al;

[0047] The preparation method of the aluminum alloy material comprises the following steps:

[0048] S1. 99.7% pure aluminum is heated and melted into molten aluminum. When the temperature reaches 700°C, add sodium tetraborate with a weight of 2% of the weight of the molten aluminum into the molten aluminum. At the same time, carry out electromagnetic stirring for 8 minutes, and then heat up to 1000°C for 15 minutes. Electromagnetic stirring was performed for 5 minutes during the heat preservation process to obtain the first treatment solution;

[0049]Cooling the ingot from the first treatment solution to obtain an Al-B master alloy;

[0050] The raw material Al was melted at 650°C to obtain the Al melt, the Al-B intermediate alloy, the Cu raw material and the Ag raw material were put into th...

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Abstract

The invention discloses an aluminum alloy material with good conductivity and a production method thereof. Aluminum, an Al-B intermediate alloy, copper and silver are melted together, heat preservation treatment-rapid cooling is carried out, then heating-heat preservation treatment is carried out twice, a first treatment material is prepared, in the rapid cooling treatment and the heating-heat preservation treatment twice, more supersaturated solid solutions in an aluminum matrix are separated out, crystal lattices are distorted and recovered more thoroughly, the heat conduction performance and the electric conduction performance of the alloy are enhanced, a trace amount of titanium element is doped in the alloy, a small amount of TiAl2 is generated at an interface, a casting structure and a weld structure are refined, the mechanical property of the aluminum alloy material containing silver and a small amount of boron is improved, meanwhile, a trace amount of vanadium is added, the comprehensive mechanical property is improved, rhenium is added for secondarily refining crystal grains, precipitation of vanadium in crystals is reduced, boron, rhenium and vanadium achieve the composite effect, the conductivity of aluminum is promoted to be recovered in the annealing process of the alloy, a second phase of rhenium is enhanced, and therefore the influence on the conductivity of the alloy when the mechanical property is improved is reduced.

Description

technical field [0001] The invention relates to an aluminum alloy material with good electrical conductivity, and also relates to a production method of the aluminum alloy material. Background technique [0002] Aluminum is cheap, has good electrical conductivity and corrosion resistance. In recent years, due to the need to save energy, it has received great attention in various fields, but the disadvantages of aluminum are also very obvious. Due to the poor mechanical properties of aluminum and low hardness , leading to its inability to be widely used in high-tech fields such as aerospace and chips. Therefore, it is necessary to add other trace metals to increase the conductivity and mechanical properties of aluminum. As a result, oxides are mixed in the alloy when the alloy is prepared after ingot casting, resulting in the prepared aluminum alloy being brittle, easy to break, and the thermal conductivity is reduced at the same time. In order to adapt to the current develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/12B22F3/14B22F9/04C21D1/26C22C1/03C22C1/04C22F1/057
CPCC22C21/12C22C1/0416C22C1/026C22C1/03B22F9/04B22F3/14C22F1/057C21D1/26B22F2009/043B22F2998/00B22F2201/11
Inventor 刘春林
Owner 鹰潭市林兴建材有限公司
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