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A kind of die-casting aluminum alloy and its preparation method 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

Active Publication Date: 2018-03-16
HUAWEI TECH CO LTD
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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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  • A kind of die-casting aluminum alloy and its preparation method and communication product

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preparation example Construction

[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: 11.0%-14.0% of silicon; 0.1%-0.9% of manganese; 0.1%-1.0% of magnesium; 0.3%-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 im...

Embodiment 1

[0094] A die-casting aluminum alloy, which is composed of the following components in mass percentage: 11.0%-14.0% of silicon; 0.1%-0.9% of manganese; 0.1%-1.0% of magnesium; 0.3%-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 i...

Embodiment 2

[0100] A die-casting aluminum alloy is composed of the following components in mass percentage: 13% silicon; 0.45% manganese; 0.5% magnesium; 0.8% iron; 0.049% 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

Embodiments of the present invention provide a die casting aluminum alloy, including the following components in percentage by mass: 11.0% to 14.0% of silicon; 0.1% to 0.9% of manganese; 0.1% to 1.0% of magnesium; 0.3% to 1.4% of iron; less than or equal to 0.2% of copper; and aluminum and inevitable impurities. The die casting aluminum alloy has good formability, heat conductivity, and corrosion resistance, and certain mechanical properties, which can avoid problems of a low yield of die-casting fittings, burn-in caused by severe heat emission of a product, corrosion in a coastal environment, assembly difficulties caused by insufficient mechanical properties, severe deformation in a wind load condition, and the like, so as to satisfy requirements of global delivery of complex communications products.

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. Communication products are often shipped regardless of region and need to adapt to the global weather environment. This requires that communication die-casting parts need to be resistant to corrosion in seawater and acid rain atmospheres, have good heat dissipation performance to 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, the die-casting base material must have the characteristics of high thermal conductivity, good corrosion resistance, and certain mechanical p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02
CPCC22C21/04B22D21/007C22C21/02
Inventor 袁文文胡邦红孟耐尔
Owner HUAWEI TECH CO LTD
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