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Die-casting aluminum alloy and preparation method and application thereof

A technology for casting aluminum alloys and aluminum alloys, which is applied in the field of aluminum alloys and can solve problems such as difficulty in obtaining thermal conductivity of die-casting aluminum alloys.

Active Publication Date: 2019-12-03
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical problems in the prior art that it is difficult to obtain a die-casting aluminum alloy with good thermal conductivity and high mechanical strength, and to provide a die-casting aluminum alloy and its preparation method and application

Method used

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  • Die-casting aluminum alloy and preparation method and application thereof
  • Die-casting aluminum alloy and preparation method and application thereof
  • Die-casting aluminum alloy and preparation method and application thereof

Examples

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preparation example Construction

[0025] The present invention also provides a method for preparing the above-mentioned die-casting aluminum alloy, wherein the method includes: smelting the aluminum alloy raw material and performing die-casting treatment to obtain a die-casting aluminum alloy; the composition of the aluminum alloy raw material is such that the obtained die-casting aluminum alloy is the The die-casting aluminum alloy described in the first aspect.

[0026] According to the method for preparing a die-casting aluminum alloy of the present invention, the aluminum alloy raw material may be a pure metal or a metal alloy, as long as the composition of the aluminum alloy obtained after smelting the added aluminum alloy raw material is within the above range. In a preferred case, the aluminum alloy raw material may include pure Al or Al alloy, pure Si or Si alloy, pure Fe or Fe alloy, pure Zn or Zn alloy, pure Sr or Sr alloy, pure Ni or Ni alloy and pure Ga or Ga alloy. In a more preferred situation, ...

Embodiment 1

[0031] After calculating the ingredients, weigh each metal alloy and pure metal by weight, and then prepare die-cast aluminum alloy A1 according to the aluminum alloy smelting and die-casting sample preparation process provided above. The weight ratio of metal alloy and pure metal is shown in Table 1.

Embodiment 2

[0033] Die-casting aluminum alloy A2 was prepared according to the method of Example 1, the difference is that the weight ratio of the metal alloy and pure metal weighed is shown in Table 1.

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Abstract

The invention discloses a die-casting aluminum alloy. The die-casting aluminum alloy comprises, by weight percentage composition, 6.0%-9.0% of Si, 0.5%-1.0% of Fe, 0.01%-0.1% of Zn, 0.01%-0.05% of Sr,0.001%-0.1% of Ni, 0.001%-0.1% of Ga and the balance Al and inevitable impurity elements. According to the die-casting aluminum alloy and the preparation method thereof, the content of Si is reasonably adjusted, Zn and Sr elements are added according to a certain proportion on the basis, and the content of Fe, Ni and Ga elements is controlled, so that the prepared die-casting aluminum alloy has the good mechanical property, heat-conducting property and relatively higher elongation.

Description

technical field [0001] The invention belongs to the field of aluminum alloys, and in particular relates to a die-casting aluminum alloy and a preparation method and application thereof. Background technique [0002] Because aluminum alloy itself has the characteristics of low density, high strength, easy forming and processing, and good electrical and thermal conductivity, it has been widely used in aviation, aerospace, transportation, building materials, petroleum, chemical industry, electronics, electric power, national defense and other fields. [0003] With the rapid development of my country's economic construction, especially the rapid development of pillar industries such as automobiles, electronics, and machinery in recent years, higher and higher requirements have been put forward for the material properties and casting characteristics of aluminum alloys. Die casting is one of the basic forming methods of aluminum alloy, which can be used for product design of compl...

Claims

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Application Information

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IPC IPC(8): C22C21/02
CPCC22C21/02
Inventor 杨阳王孝东廖梦觉郭强
Owner BYD CO LTD
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