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压铸铝加工的外观检查事项

来源:http://www.jnhjgs.cn     发布时间:2021-09-07 15:30:09    点击:

应该很多人都知道,铝及铝合金被公认为未来汽车的理想材料。对于铝。压铸铝加工零部件的应用,将大大减轻整车质量,并在提高汽车动力性能的同时,降低污染物的排放。
As many people know, aluminum and aluminum alloys are recognized as ideal materials for future cars. For aluminum. The application of die-casting aluminum parts will greatly reduce the vehicle mass, improve the vehicle power performance and reduce the emission of pollutants.
但是,铝的抗承载力与钢相比存在着很大的差距,且由于目前生产技术的局限,导致成本高居不下,从而限制了其在汽车上的应用。
However, there is a big gap in the bearing capacity of aluminum compared with steel, and the cost is high due to the limitations of current production technology, which limits its application in automobiles.
铝合金压铸的缺陷特征,产生原因,防止方法:名称 流痕及花纹 网状毛翅 脆性 裂纹 缩孔缩松特征及检查方法。
Defect characteristics, causes and prevention methods of aluminum alloy die casting: Name: flow mark and pattern mesh fin brittle crack shrinkage cavity shrinkage porosity characteristics and inspection methods.
外观检查:铝合金压铸表面上有与金属液流动方向一致的条纹,有明显可见的与金属基体颜色不一样无方向性的纹路,无发展趋势。
 山东铝合金压铸
Appearance inspection: there are stripes consistent with the flow direction of liquid metal on the surface of aluminum alloy die casting, and there are obvious non directional lines different from the color of metal matrix, and there is no development trend.
外观检查:压铸件表面上有网状发丝一样凸起或凹陷的痕迹,随压铸次数增加而不断扩大和延伸。
Appearance inspection: there are convex or concave traces like reticular hair on the surface of die casting parts, which continue to expand and extend with the increase of die casting times.
外观检查或金相检查:合金晶粒粗大或极小,使铸件易断裂或碰碎。
Appearance inspection or metallographic examination: the alloy grain is coarse or very small, which makes the casting easy to break or smash.
外观检查:将铸件放在碱性溶液中,裂纹处呈暗灰色金属基体的破坏与裂开呈直线或波浪形,纹路狭小而长,在外力作用下有发展趋向裂纹有穿透和不穿透两种:
Appearance inspection: when the casting is placed in alkaline solution, the crack is dark gray, the damage and crack of metal matrix are linear or wavy, the grain is narrow, small and long, and tends to develop under the action of external force. The crack can be divided into penetration and non penetration:
解剖外观检查或探伤检查;缩孔表面呈暗色并不光滑,形状不规则的孔洞,大而集中的为缩孔,小而分散的为缩松。
Anatomical appearance inspection or flaw detection; The surface of shrinkage cavity is dark, not smooth and irregularly shaped. Large and concentrated shrinkage cavity and small and scattered shrinkage porosity.
以上的信息就是山东铝合金压铸给小编提供的知识分享,更多的精彩内容请点击我们的网站:http://www.jnhjgs.cn我们后续会有更多的内容等您查看
The above information is the knowledge sharing provided by Shandong Aluminum alloy die casting to Xiaobian. For more wonderful contents, please click our website: http://www.jnhjgs.cn We will have more content for you to check later
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