Die-cast aluminum alloy, preparation method thereof and communication product structural member

A technology of casting aluminum alloy and product structure, which is applied in the field of aluminum alloy materials, can solve the problems of limited use and poor fluidity, and achieve the effects of low production cost, improved fluidity, and excellent fluidity

Inactive Publication Date: 2019-08-16
HONOR DEVICE CO LTD
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  • Abstract
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Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a die-casting aluminum alloy and a preparation method thereof. The die-casting aluminum alloy has high strength, high toughness and excellent fluidity, so as to solve the problem of the flow of existing aluminum-magnesium die-casting aluminum alloys to a certain extent. Poor performance, resulting in limited use in thin-walled electronic product die-casting scenarios

Method used

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  • Die-cast aluminum alloy, preparation method thereof and communication product structural member

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preparation example Construction

[0062] Correspondingly, an embodiment of the present invention also provides a method for preparing a die-casting aluminum alloy, including the following steps:

[0063] S10. According to the composition ratio of the die-casting aluminum alloy, first add pure aluminum ingots into the melting furnace, and then add a metal element source that can provide other elemental components other than aluminum for melting after the aluminum ingot is melted;

[0064] S20. Casting after refining and degassing to obtain the die-casting aluminum alloy, the die-casting aluminum alloy includes the following components in mass percentage: magnesium: 0.1%-7%, zinc: 7%-35%, manganese: 0.2%-0.8%, iron: 0.1%-0.7%, titanium and / or zirconium: 0.07%-0.2%, unavoidable impurities ≤ 0.3%, and aluminum.

[0065] In some embodiments, the composition of the die-casting aluminum alloy may further include copper element. In some embodiments, the composition of the die-casting aluminum alloy may further includ...

example 1

[0083] A die-casting aluminum alloy, composed of the following components by mass percentage: silicon: 1.69%, magnesium: 5.62%, zinc: 8.52%, copper: 2.38%, manganese: 0.538%, iron: 0.121%, titanium: 0.104%, Zirconium 0.0015%, unavoidable impurity content ≤ 0.3%, the rest is aluminum.

[0084] The preparation method of the die-casting aluminum alloy in this example includes the following steps:

[0085] According to the composition ratio of the die-casting aluminum alloy, first add pure aluminum ingots into the melting furnace, heat to 730°C-760°C, and keep warm for 30 minutes to melt the aluminum ingots. After all the aluminum ingots are melted, add pure zinc ingots, aluminum silicon Alloy, iron powder, aluminum-manganese alloy, aluminum-copper alloy, aluminum-titanium alloy and aluminum-nickel alloy, then add refining agent and slag, then let it stand for 15 minutes to 25 minutes; then cool down to 700°C-720°C, add For pure magnesium ingots, stir evenly and keep warm for 15-...

example 2-3

[0087] The specific formula of the die-casting aluminum alloy is shown in Table 1.

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Abstract

The embodiment of the invention provides die-cast aluminum alloy. The die-cast aluminum alloy comprises the following components of, in percentage by mass, 0.1%-7% of magnesium, 7%-35% of zinc, 0.2%-0.8% of manganese, 0.1%-0.7% of iron, 0.07%-0.2% of titanium and/or zirconium, less than or equal to 0.3% of inevitable impurities and the balance aluminum. The die-cast aluminum alloy has the advantages of high strength, high toughness and excellent liquidity, and can be suitable for forming a complex thin-walled part product. The embodiment of the invention also provides a preparation method of the die-cast aluminum alloy and a communication product structural member prepared by the die-cast aluminum alloy.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to a die-casting aluminum alloy, a preparation method thereof, and a structural part of a communication product. Background technique [0002] While maintaining the advantages of traditional aluminum alloys such as high strength, high heat dissipation, and high corrosion resistance, die-casting aluminum alloys have the characteristics of high fluidity, which meets the industrial die-casting production process and is widely used in household appliances, automobiles, electronic products and other fields. However, with the development of multi-functional and thinner products, the structural space is further compressed, especially in the fast-paced electronics industry, which puts forward higher requirements for the strength and toughness of die-casting materials. [0003] Compared with the commonly used aluminum-silicon-based die-casting aluminum alloys, the aluminum-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/03
CPCC22C21/10C22C1/03C22C1/026B22D21/04C22F1/047
Inventor 杨涛霍国亮张少辉
Owner HONOR DEVICE CO LTD
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