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Silicon-aluminum alloy material and preparation method thereof

A silicon-aluminum alloy and alloy technology, applied in the field of silicon-aluminum alloy materials and their preparation, can solve problems such as deformation and affecting the appearance of finished products

Inactive Publication Date: 2015-11-11
张小龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 5. The product is severely deformed due to the rapid cooling of the blank during the mold opening process after die-casting, which seriously affects the appearance of the finished product and subsequent processing

Method used

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Examples

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Embodiment Construction

[0026] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the detailed description of the preferred embodiment is as follows:

[0027] A silicon aluminum alloy material, its composition and mass percentage are: Si: 10.0%-12.0%, Cu: 1.5%-2.5%, Mg: ≤0.3%, Mn: ≤0.55%, Sn: ≤0.25%, Ni : ≤0.45%, Zn: ≤1.00%, Fe: ≤0.8%, Pb: ≤0.1%, Hg: ≤0.1%, Cd: ≤100ppm, RE: 0.02%~0.19%, Zr: 0.15%~0.20 %, the balance is Al.

[0028] Wherein the rare earth element RE is a single rare earth element or a mixed rare earth element.

[0029] Specifically, the aforementioned rare earth elements include cerium and lanthanum, wherein the content of the rare earth element cerium is 0.009-0.09%, and the content of lanthanum is 0.05-0.08%.

[0030] A method for preparing a silicon-aluminum alloy material, characterized in that it comprises the steps of:

[0031] Step 1: Select a set of element ratios within the above element ...

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PUM

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Abstract

The invention relates to a silicon-aluminum alloy material. The silicon-aluminum alloy material is characterized by comprising the components of, in percentage by weight, 10.0%-12.0% of Si, 1.5%-2.5% of Cu, 0.3% of Mg or less, 0.55% of Mn or less, 0.25% of Sn or less, 0.45% of Ni or less, 1.00% of Zn or less, 0.8% of Fe or less, 0.1% of Pb or less, 0.1% of Hg or less, 100 ppm of Cd or less, 0.02%-0.19% of rare earth(RE) elements, 0.15%-0.20% of Zr and the balance Al. The silicon-aluminum alloy material has the good conductivity and higher strength and elongation, and is high in oxidation resistance. The RE elements and zirconium elements are added in aluminum alloy, harmful elements and gas are removed, molten aluminum is purified, and the strength, plasticity and resistance to pressure of the silicon-aluminum alloy material are improved.

Description

technical field [0001] The invention relates to a silicon-aluminum alloy material and a preparation method thereof. Background technique [0002] Due to its high strength, light weight, and good electrical conductivity (various brands of aluminum alloys have different performance characteristics), aluminum alloys are widely used and achieve good economic results, such as applications involving the electrical industry, heat dissipation machine processing industry. [0003] In the electrical industry, the production of aluminum alloy wires in my country has undergone several equipment and process reforms, and the product performance has also reached the requirements of IEC, JEC and other standards, and is used on overhead lines. However, due to various reasons, the current use of aluminum alloy wires in power transmission and distribution lines in my country only accounts for about 7%, while aluminum alloy wires have already become the main type of power transmission lines in...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02
Inventor 张小龙
Owner 张小龙
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