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Aluminum alloy applied to electric vehicle charging and preparation method thereof

An aluminum alloy and electric vehicle technology, applied in the field of aluminum alloy preparation, can solve the problems of poor plasticity and heat resistance, unable to obtain fine and uniform crystalline aluminum alloy, etc., achieve excellent mechanical properties, increase fluidity, and ensure plasticity Effect

Inactive Publication Date: 2020-10-30
佛山金兰铝厂有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes an aluminum alloy used in electric vehicle charging and its preparation method to solve the problem that fine and uniform crystal aluminum alloy cannot be obtained during the processing of the aluminum alloy, which leads to the plasticity of the prepared aluminum alloy material in use. Poor plasticity and heat resistance

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  • Aluminum alloy applied to electric vehicle charging and preparation method thereof
  • Aluminum alloy applied to electric vehicle charging and preparation method thereof
  • Aluminum alloy applied to electric vehicle charging and preparation method thereof

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preparation example Construction

[0042] In addition, the present invention also provides a method for preparing an aluminum alloy used in electric vehicle charging, comprising the following steps:

[0043] S1. According to the composition of aluminum alloy, the ingredients of raw materials are carried out;

[0044] S2. Adding pure aluminum ingots into a melting furnace and heating to 700-750° C. to obtain an aluminum solution;

[0045] S3. Lower the temperature to 650-690° C., and add the remaining raw materials to the aluminum solution in turn under the condition of stirring. After completely dissolving, remove the slag and keep it warm for 30-60 minutes to obtain the aluminum alloy solution;

[0046] S4. Semi-continuously casting the molten aluminum alloy into an aluminum alloy ingot at a casting temperature of 730-750° C., cooling slowly, and maintaining a vacuum state during the cooling process, with a vacuum degree lower than 5 torr;

[0047] S5, processing the cooled aluminum alloy ingot into a disc sh...

Embodiment 1

[0052] This embodiment is used to illustrate the preparation method of the aluminum alloy used for electric vehicle charging of the present invention,

[0053] The aluminum alloy includes the following components by weight percent: Zn: 1.12%, Mn: 1.0%, Mg: 9.0%, Cr: 0.1%, Ni: 0.3%, Ti: 0.12%, and trace elements: 0.4%, impurity elements≤0.5%, the balance is Al, and the trace elements are B, Re, Zr, and the mass percentage ratio of B, Re, Zr is 8:1:3;

[0054] The method comprises the steps of:

[0055] S1. Raw materials are mixed according to the composition of the aluminum alloy; specifically: the raw materials are: Zn ingots, AlMn alloys, Mg ingots with a purity of 99.9%, Al ingots, AlCr, AlNi, Ti ingots, and trace element aluminum-based master alloys ;

[0056] S2, adding pure aluminum ingots into the melting furnace and heating to 750°C to obtain aluminum solution;

[0057] S3. Lower the temperature to 690°C, and add the remaining raw materials to the aluminum solution s...

Embodiment 2

[0062] This embodiment is used to illustrate the preparation method of the aluminum alloy used for electric vehicle charging of the present invention,

[0063] The aluminum alloy includes the following components by weight percentage: Zn: 0.55%, Mn: 0.8%, Mg: 8.0%, Cr: 0.4%, Ni: 0.3%, Ti: 0.12%, and trace elements: 0.4%, impurity elements≤0.5%, the balance is Al, and the trace elements are B, Re, Zr, and the mass percentage ratio of B, Re, Zr is 1:1:3;

[0064] The method comprises the steps of:

[0065] S1. Raw materials are mixed according to the composition of the aluminum alloy; specifically: the raw materials are: Zn ingots, AlMn alloys, Mg ingots with a purity of 99.9%, Al ingots, AlCr, AlNi, Ti ingots, and trace element aluminum-based master alloys ;

[0066] S2, adding pure aluminum ingots into the melting furnace and heating to 700°C to obtain aluminum solution;

[0067] S3. Lower the temperature to 650°C, and add the remaining raw materials to the aluminum solutio...

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Abstract

The invention provides aluminum alloy applied to electric vehicle charging and a preparation method thereof. Through optimizing the composition of the aluminum alloy and adding a certain proportion oftrace elements, after an aluminum alloy ingot is treated through high-pressure torsion, and heating and insulation treatment is carried out, grain refinement can be significantly promoted, a uniformnanocrystalline structure is formed through twist deformation, fiber distribution presents, and at the same time, a large-angle grain boundary greater than 15 degrees migrates to a smaller-angle grainboundary, and the average grain size dTEM of the obtained aluminum alloy is 40-60 nm, while the hardness of the aluminum alloy is ensured, the plasticity and heat resistance of the use of the aluminum alloy can be ensured, and the yield of products is improved; and on the whole, the problem that during the aluminum alloy processing, fine and uniform crystal aluminum alloy cannot be obtained, resulting in poor plasticity and heat resistance of prepared aluminum alloy materials in plastic use is solved.

Description

technical field [0001] The invention relates to the field of aluminum alloy preparation, in particular to an aluminum alloy used in electric vehicle charging and a preparation method thereof. Background technique [0002] Aluminum alloys are widely used in many engineering fields due to their excellent performance. With the development of the times and technology, people have put forward higher and higher requirements for the performance of materials. Therefore, researchers began to continuously look for more preparation methods. To improve the performance of materials, and with the deepening of research, a variety of high-performance materials preparation methods have been developed, including the large plastic deformation method, which can prepare some materials with finer crystals, but in these traditional methods, There are still problems of high preparation cost and low processing efficiency. In addition, during the preparation process of traditional aluminum alloys, t...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/03C22F1/047
CPCC22C1/026C22C1/03C22C21/06C22F1/047
Inventor 李进洪黄荣清林幸泰
Owner 佛山金兰铝厂有限公司
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