High-thermal-conductivity aluminum alloy and preparation method thereof

An aluminum alloy and high thermal conductivity technology, which is applied in the field of aluminum alloy materials, can solve the problems that the heat dissipation performance of aluminum alloy materials cannot meet the requirements, and achieve the effects of improving the use value, stabilizing the preparation process, and reducing cooling

Pending Publication Date: 2022-08-02
瑞晟通金属(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, as components such as 5G communications, new energy vehicles, and electronic and electrical products tend to be high-speed, lightweigh

Method used

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  • High-thermal-conductivity aluminum alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A raw material of a high thermal conductivity aluminum alloy comprises the following raw material components in parts by weight:

[0039] 1.8 parts of copper ingots, 1 part of iron ingots, 0.3 parts of quick-melting silicon, 0.08 parts of magnesium powder, 0.03 parts of rare earth oxides, and 97 parts of aluminum ingots;

[0040] The rare earth contains the following raw material components by weight: 25 parts of terbium oxide, 25 parts of dysprosium oxide, 17 parts of holmium oxide, 17 parts of thulium oxide, 8 parts of ytterbium oxide, and 8 parts of lutetium oxide.

[0041] The preparation method of the high thermal conductivity aluminum alloy is:

[0042] S1. Weigh each raw material, preheat the smelting furnace to 720°C, then add each raw material into the smelting furnace respectively, stir continuously to obtain an alloy melt, take 1.6% of the melt weight of the modified covering agent to cover the melt surface;

[0043] S2. When the melt is heated to 760°C, ta...

Embodiment 2

[0058] A high thermal conductivity aluminum alloy comprises the following raw material components by weight: 0.5 part of copper ingot, 0.1 part of iron ingot, 0.05 part of fast-melting silicon, 0.15 part of magnesium powder, 0.05 part of rare earth oxide, and 97.3 part of aluminum ingot;

[0059] The rare earth oxide contains the following raw material components by weight: 20 parts of terbium oxide, 20 parts of dysprosium oxide, 20 parts of holmium oxide, 20 parts of thulium oxide, 10 parts of ytterbium oxide, and 10 parts of lutetium oxide.

[0060] The preparation method of the high thermal conductivity aluminum alloy is:

[0061] S1. Weigh each raw material, preheat the smelting furnace to 710°C, then add each raw material into the smelting furnace respectively, continue stirring to obtain an alloy melt, and take 1.2% of the melt weight of the modified covering agent on the melt surface. ;

[0062] S2. When the melt is heated to 750°C, take a refining agent that accounts ...

Embodiment 3

[0077] A high thermal conductivity aluminum alloy comprises the following raw material components by weight: 2.5 parts of copper ingots, 1.5 parts of iron ingots, 0.05 parts of fast-melting silicon, 0.03 parts of magnesium powder, 0.01 parts of rare earth oxides, and 94.8 parts of aluminum ingots;

[0078] The rare earth oxide contains the following raw material components by weight: 30 parts of terbium oxide, 30 parts of dysprosium oxide, 10 parts of holmium oxide, 10 parts of thulium oxide, 10 parts of ytterbium oxide, and 10 parts of lutetium oxide.

[0079] The preparation method of the high thermal conductivity aluminum alloy is:

[0080] S1. Weigh each raw material, preheat the smelting furnace to 730°C, then add each raw material into the smelting furnace, stir continuously to obtain an alloy melt, take 1.8% of the melt weight of the modified covering agent to cover the melt surface;

[0081] S2. When the melt is heated to 770°C, take a refining agent that accounts for...

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Abstract

The invention discloses a high-thermal-conductivity aluminum alloy and a preparation method thereof.The high-thermal-conductivity aluminum alloy is prepared from, by weight, 0.5-2.5 parts of copper ingots, 0.1-1.5 parts of iron ingots, 0.05-0.5 part of fast-melting silicon, 0.03-0.15 part of magnesium powder, 0.01-0.05 part of rare earth oxide and 94.8-99.3 parts of aluminum ingots, and the rare earth oxide is prepared from, by weight, 20-30 parts of terbium oxide, 20-30 parts of dysprosium oxide, 10-20 parts of holmium oxide, 10-20 parts of thulium oxide and 5-10 parts of ytterbium oxide; and 5-10 parts of lutetium oxide. The composite alloying effect of all added metal elements is brought into full play, an improved covering agent and an improved refining modifier are used in the preparation process, the problem of mutual restriction of alloy strengthening and material heat conduction performance improvement is solved, synchronous improvement of the heat conduction performance and the mechanical performance of the cast aluminum alloy is achieved, and the cast aluminum alloy has the wide application field.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to a high thermal conductivity aluminum alloy and a preparation method thereof. Background technique [0002] Because of its light weight, corrosion resistance, and excellent thermal conductivity, aluminum alloys are widely used in parts with high thermal conductivity requirements, such as chassis housings and filter housings for 5G base stations, and electrical control systems for new energy vehicles. Housing, power converter housing and end cap housing, etc. Casting is the most commonly used production method for aluminum alloy products, such as die casting, semi-solid forming, and squeeze casting. It has the advantages of high efficiency, low cost, and the ability to form thin-walled parts with complex structures. [0003] Al-Si series is the most commonly used cast aluminum alloy at present, accounting for more than 85% of the total output of the existing cast aluminum a...

Claims

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Application Information

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IPC IPC(8): C22C21/16C22F1/04C22F1/057C22C1/06C22C1/10C22C21/00C22C21/14C22C32/00
CPCC22C21/16C22C21/14C22C21/00C22C32/0036C22C1/1036C22C1/06C22F1/057C22F1/04C22C1/1047
Inventor 周辉翔辛道辉周辉强
Owner 瑞晟通金属(广东)有限公司
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