作者：http://thai-sz.com/ 【原创】 Time: 2019-06-12 Author: http: //thai-sz.com/ [original]
件 的表面粗糙度应符合GB/T6060.1的相关规定，表面不能有明显的裂纹、疏松、欠铸、气泡和任何穿透性缺陷。 The surface roughness of aluminum alloy castings shall comply with the relevant provisions of GB / T6060.1, and the surface shall not have obvious cracks, looseness, under-casting, bubbles and any penetrating defects. 件表面可以有擦伤、凹陷、缺肉、网状毛刺等小缺陷，但这些缺陷应符合以下规定。 The surface of aluminum alloy die castings can have small defects such as scratches, dents, lack of meat, and burrs on the surface, but these defects should meet the following requirements.
If there is a scratch on the surface of the aluminum alloy casting, the depth of this scratch is ≤0.1㎜, and the abrasion area cannot exceed 5% of the total area; the surface of the aluminum alloy die-casting has depressions, and the recessed depth should be ≤0.3㎜ The height of the mesh burrs on the surface of the casting should be ≤0.2㎜; when the aluminum alloy casting has a lack of meat, the depth should be ≤0.5㎜, the length is less than 2㎜, and the lack of meat on the surface can be less than 2 distances. The distance between the edges of the die-casting is ≥4㎜, and the distance between the lacking parts is ≥10㎜.
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