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High-performance die-casting aluminum alloy, preparation method thereof and communication product

A casting aluminum alloy and communication technology, which is applied in the field of aluminum alloy materials, can solve the problems that good formability, thermal conductivity, corrosion resistance and mechanical properties cannot be taken into account at the same time, and achieve the effect of excellent formability and simple process

Pending Publication Date: 2020-07-03
HUAWEI MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the first aspect of the embodiment of the present invention provides a die-casting aluminum alloy, which has excellent formability, thermal conductivity, corrosion resistance and certain mechanical properties, and is used to solve the problem that the die-casting aluminum alloy in the prior art cannot be simultaneously Considering the issues of good formability, thermal conductivity, corrosion resistance and mechanical properties

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  • High-performance die-casting aluminum alloy, preparation method thereof and communication product

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[0068] In a second aspect, an embodiment of the present invention provides a method for preparing a die-casting aluminum alloy, comprising the following steps:

[0069] According to the composition ratio of die-casting aluminum alloy, first add pure aluminum ingot into the melting furnace, after melting the aluminum ingot, add aluminum-silicon alloy, aluminum-copper alloy, aluminum-iron alloy, aluminum-manganese alloy, aluminum-magnesium alloy for melting, and then refine and remove After gas treatment, die-casting is performed to obtain the die-casting aluminum alloy. The die-casting aluminum alloy is composed of the following components in mass percentage: silicon 12.1%-12.9%; manganese 0.1%-0.9%; magnesium 0.15%-1.0%; iron 0.81%-1.4%; copper ≤ 0.2%; and aluminum and unavoidable impurities.

[0070] The preparation method of the die-casting aluminum alloy of the present invention adopts the existing conventional process, and also includes operations such as conventional impu...

Embodiment 1

[0094] A die-casting aluminum alloy, which is composed of the following components in mass percentage: 12.1%-12.9% of silicon; 0.1%-0.9% of manganese; 0.15%-1.0% of magnesium; 0.81%-1.4% of iron; Aluminum and unavoidable impurities.

[0095] Die-casting the die-casting aluminum alloy with the components of this embodiment into a complex thin-walled communication housing, and its preparation method includes the following steps:

[0096] According to the composition ratio of the above-mentioned die-casting aluminum alloys, first add pure aluminum ingots into the melting furnace, and then add aluminum-silicon alloys, aluminum-copper alloys, aluminum-iron alloys, aluminum-manganese alloys, and aluminum-magnesium alloys for melting, and then refine After degassing treatment, die-casting is performed to obtain a thin-walled communication housing.

[0097] The interior of the die-casting aluminum alloy includes an α-Al phase, a eutectic Si phase, and a second phase, the second phase...

Embodiment 2

[0100] A die-casting aluminum alloy is composed of the following components in mass percentage: 12.5% ​​silicon; 0.45% manganese; 0.5% magnesium; 0.85% iron; 0.05% copper;

[0101] According to the method of Embodiment 1, the die-casting aluminum alloy with the components of this embodiment is die-cast into a complex thin-walled communication housing.

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Abstract

The embodiment of the invention provides a die-casting aluminum alloy. The die-casting aluminum alloy comprises the following components of, in percentage by mass, 12.1%-12.9% of silicon, 0.1%-0.9% ofmanganese, 0.15%-1.0% of magnesium, 0.81-1.4% of iron, less than or equal to 0.2% of copper, and the balance aluminum and unavoidable impurities. The die-casting aluminum alloy has excellent formingperformance, heat conductivity, corrosion resistance and certain mechanical performance, the problems that the yield of die castings is low, the machine is seriously burnt due to products heating, corrosion occurs in the coastal environment, the mechanical performance is insufficient, consequently assembling is difficult or deformation is serious under the wind load condition can be avoided, and therefore, the delivery requirements of complex communication products in the global environment are met. The embodiment of the invention further provides a preparation method of the die-casting aluminum alloy and a communication product comprising the die-casting aluminum alloy.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to a die-casting aluminum alloy, a preparation method thereof, and a communication product. Background technique [0002] With the development of the communication industry, the reliability requirements for communication products are getting higher and higher. The increase in thermal power consumption of various chips also poses challenges to the heat dissipation performance of communication products. Communication products are often shipped regardless of region and need to adapt to the global weather environment. This requires that communication die castings need to be corrosion-resistant to seawater and acid rain atmospheres, have good heat dissipation performance and can adapt to changes in cold and heat shocks, and have certain mechanical properties to meet wind load fatigue. In order to meet the comprehensive performance requirements of communication die-casting parts,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03H05K5/04
CPCC22C1/026C22C1/03C22C21/02H05K5/04
Inventor 胡邦红袁文文
Owner HUAWEI MACHINERY
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