Die-cast aluminum alloy surface treatment method
A casting aluminum alloy and treatment method technology, applied in the direction of surface reaction electrolytic coating, coating, electrolytic coating, etc., can solve problems such as excessive silicon content and inability to perform anodic oxidation treatment
Inactive Publication Date: 2019-01-08
SHENZHEN TINNO WIRELESS TECH
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Problems solved by technology
[0005] The invention provides a method for surface treatment of die-casting aluminum alloys to overcome the technical problems that die-casting aluminum alloys not only have the appearance of blisters, but also cannot be anodized due to excessive silicon content (such as more than 10%)
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[0036] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0037] figure 1 It is a schematic flow chart of Embodiment 1 of the surface treatment method for die-casting aluminum alloy of the present invention. As shown in FIG. 1, the method of this embodiment may include:
[0038] S1, cleaning the die-cast aluminum alloy.
[0039] In this embodiment, cleaning the die-cast aluminum alloy can effec...
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The invention provides a surface anodizing treatment method for die casting aluminum alloy. The surface anodizing treatment method for the die casting aluminum alloy comprises the steps that the die casting aluminum alloy is cleaned; and physical vapor deposition of metallic aluminium is performed on the surface of the die casting aluminum alloy. According to the surface anodizing treatment method for the die casting aluminum alloy, the die casting aluminum alloy is cleaned, and the physical vapor deposition of metallic aluminium is performed on the surface of the die casting aluminum alloy, so that surface modification of the die casting aluminum alloy is realized; sand holes in the surface of the die casting aluminum alloy are further filled and removed; the purity of the aluminum element in the surface reaches more than 99.0%, so that influence of silicon and other impurity elements on the surface anodizing adaptation of the die casting aluminum alloy is alleviated; and therefore, the problems that the die casting aluminum alloy has a sand hole appearance, and anodizing treatment cannot be performed because of an overhigh silicon content (which for example is higher than 10%) are solved.
Description
Technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a surface treatment method for die-cast aluminum alloy. Background technique [0002] The oxide film produced by surface treatment of aluminum and its alloys has decorative effects, protective properties and special functions, which can improve the electrical conductivity, heat conduction, wear resistance, corrosion resistance and optical properties of aluminum and its alloys. Therefore, domestic and foreign researchers used various methods to surface treatment to improve its comprehensive performance, and made great progress. [0003] Anodizing is the most commonly used surface treatment process for aluminum alloys. The anodizing process is related to the content of the metal elements in the aluminum alloy material. Only pure aluminum without silicon and aluminum alloy profiles with a silicon content of less than 1% can be surface treated by the aluminum alloy anodizin...
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IPC IPC(8): C25D11/16
Inventor 陈颖林圣董小林
Owner SHENZHEN TINNO WIRELESS TECH