Aluminum alloy, preparation method thereof, aluminum alloy moulded body, and aluminium alloy surface coloring method

A technology of aluminum alloy surface and aluminum alloy, applied in the field of aluminum alloy surface coloring and aluminum alloy forming body, to achieve the effect of good anodic oxidation characteristics, coloring characteristics, and high comprehensive mechanical properties

Inactive Publication Date: 2015-11-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiency that the existing aluminum alloys cannot have both good anodic oxidation performance and casting performance, and provide an aluminum alloy and its preparation method. The aluminum alloy can be used for die casting, and the comprehensive mechanical properties of the casting are good , and the aluminum alloy is easy to anodize

Method used

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  • Aluminum alloy, preparation method thereof, aluminum alloy moulded body, and aluminium alloy surface coloring method
  • Aluminum alloy, preparation method thereof, aluminum alloy moulded body, and aluminium alloy surface coloring method
  • Aluminum alloy, preparation method thereof, aluminum alloy moulded body, and aluminium alloy surface coloring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] (1) Prepare aluminum alloy raw materials, wherein, based on the total amount of aluminum alloy raw materials, the content of Mn is 1%, the content of Mg is 1%, the content of La is 0.2%, and the balance is Al , where Mn is provided in the form of a master alloy of Mn and Al, La is provided in the form of a master alloy of La and Al, and the rest are provided in the form of pure metals.

[0063] Aluminum alloy raw materials were smelted and cast into ingots, and the obtained ingots were mold-cast on a 160T cold die-casting machine to obtain the aluminum alloy die-cast body of the present invention (referred to as A1). Among them, the melting temperature is 750°C, the injection speed is 2m / s, the mold temperature is 200°C, and the casting size is 200mm×30mm×3mm.

[0064] The surface hardness and tensile strength of the prepared aluminum alloys were measured, and the results are listed in Table 1.

[0065] (2) After degreasing and pickling the aluminum alloy die-casting b...

Embodiment 2

[0068] (1) The aluminum alloy die-casting body is prepared by the same method as in Example 1, wherein the composition of the aluminum alloy raw material is: based on the total amount of the aluminum alloy raw material, in terms of weight percentage, the content of Mn is 2.5%, the content of Mg The content is 1%, the content of La is 0.2%, and the balance is Al, so as to obtain an aluminum alloy die-casting body, and its surface hardness and tensile strength are listed in Table 1.

[0069] (2) The aluminum alloy molded body was prepared by the same method as in step (2) of Example 1.

[0070] The effects of anodizing and coloring are listed in Table 1.

Embodiment 3

[0072] (1) The aluminum alloy die-casting body is prepared by the same method as in Example 1, wherein the composition of the aluminum alloy raw material is: based on the total amount of the aluminum alloy raw material, in terms of weight percentage, the content of Mn is 4%, the content of Mg The content is 1%, the content of La is 0.2%, and the balance is Al, so as to obtain an aluminum alloy die-casting body, and its surface hardness and tensile strength are listed in Table 1.

[0073] (2) The aluminum alloy molded body was prepared by the same method as in step (2) of Example 1.

[0074] The effects of anodizing and coloring are listed in Table 1.

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Abstract

An aluminum alloy contains 1-4wt％ of Mn, 0.1-5wt％ of Mg, 0.002-0.5wt％ of a rare earth element, 0-2wt％ of Co, 0-1.5wt％ of Fe, 0-1wt％ of Ti, 0-1wt％ of Cu, 0-1.6wt％ of Zn, 0-0.5wt％ of Si, and 82.9-98.898wt％ of Al, based on total weight of the aluminum alloy. The rare earth element contains La. Based on the total weight of the rare earth element, the content of La in the rare earth element is from 20wt％ to 100wt％. A method of preparing an aluminum alloy, a method of coloring a surface of an aluminum alloy and an aluminum alloy product are also provided.

Description

technical field [0001] The invention relates to an aluminum alloy and a preparation method thereof. The invention also relates to an aluminum alloy molded body. The invention further relates to a method for coloring the surface of an aluminum alloy. Background technique [0002] Aluminum alloy is widely used because of its light material, abundant resources, and easy coloring and decoration. According to different molding methods, aluminum alloys are mainly divided into wrought aluminum alloys and cast aluminum alloys. Among them, cast aluminum alloys can be divided into Al-Si series, Al-Mg series, Al-Si-Cu series and Al-Si-Cu series according to different material systems. Al-Zn series, etc. [0003] As a cast aluminum alloy, the Al-Si series aluminum alloy has become the most widely used cast aluminum alloy due to its excellent casting performance and good comprehensive mechanical properties; however, the Al-Si series aluminum alloy will turn gray, The phenomenon of blac...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/02C25D11/04
CPCC22C1/02C22C21/00C25D11/04C22C21/06C25D11/14C25D11/243C25D11/246
Inventor 张法亮菅永喜李绍青宫清
Owner BYD CO LTD
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