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High texture magnesium alloy surface treatment method and product thereof

A surface treatment and surface pretreatment technology, which is applied in metal material coating process, superimposed layer plating, coating, etc., can solve the problem that die castings cannot be treated with high-quality surface, die castings lose their metal texture, and die casting products are good. Reduced efficiency and other issues, to achieve the effect of anti-corrosion and better use function, environmental protection process, high mass production

Inactive Publication Date: 2014-03-12
MITAC PRECISION TECH(KUNSHAN) CORP
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Problems solved by technology

[0004] (1) The alloy material for die-casting determines that die-casting parts cannot be treated with high-quality surface treatment. For example, magnesium alloy has active chemical properties and poor corrosion resistance. The surface treatment of exterior parts must be done by spraying paint or filming. loss of metallic texture;
[0005] (2) Die castings have inherent and inevitable casting defects, such as pores, cracks, inclusions, local depressions and flow marks, etc. These defects make the subsequent process difficult and also reduce the yield of die casting products

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  • High texture magnesium alloy surface treatment method and product thereof

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Embodiment Construction

[0027] In order to achieve the above object, the present invention provides a high-quality magnesium alloy surface treatment method, which comprises the following steps:

[0028] Step 101: providing a magnesium alloy die casting with slight defects on the surface;

[0029] Step 102: Grinding and machining the surface of the above-mentioned magnesium alloy die-casting to remove, and then degreasing, ultrasonic cleaning and drying the treated surface;

[0030] Step 103: Perform film treatment on the magnesium alloy die-casting after the above treatment, wherein the color of the film is selected to be a lighter color;

[0031] Step 104: Grinding the defective parts on the surface of the magnesium alloy die-casting after film treatment, and then performing cold spraying treatment to repair the defective parts, and finally cold spraying a layer of thickness of 20 μm to 50 μm on the surface of the magnesium alloy die-casting Uniform metal material, grinding and machining the above-...

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Abstract

The invention relates to a high texture magnesium alloy surface treatment method and a product thereof. The method comprises: (1) die casting forming of a magnesium alloy work-piece; (2) a surface pre-treatment; (3) a formation treatment; (4) cold spray coating; and (5) an electrophoresis coating treatment. The product is the product produced through treatments by using the method. According to the present invention, the product with the high texture appearance can be produced on the magnesium alloy die casting surface, the method has characteristics of environmental protection process, simple process and substantial magnesium alloy die casting finished product yield increase, and is suitable for large scale industrial application, and the treated product has characteristics of good corrosion resistance, compactness, beautiful appearance, changeable color, metal effect and metal color penetration effect.

Description

【Technical field】 [0001] The invention relates to a surface treatment method of a die casting and its product, in particular to a high-quality magnesium alloy surface treatment method and its product. 【Background technique】 [0002] Modern products require fashionable appearance and rich texture while pursuing functions. Apple's products such as iPhone and MacBook Air are all made of one-piece molding (Unibody process), that is, an extruded aluminum alloy plate is integrated with CNC machine tools. Forming mechanical processing technology, the advantage of integral forming technology is that it is strong, light and thin, and can be anodized to obtain rich texture and color, but the process of this technology is lengthy, the utilization rate of metal materials is low (only about 5%), and the manufacturing cost is high. In addition, The one-piece molding technology is not easy to be adopted by the majority of manufacturers due to the limited scale of CNC machines and limited p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00
Inventor 郭雪梅孙兵兵
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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