我厂电器电机产品上用的ZL401铝合金压铸件,近一时期常出现一些缺陷,主要有阳极化后表面上出现“黄点”,切削加工困难或脆断以及端边部裂纹等。这些缺陷严重影响了生产和产品质量。为此,我们对其进行分析,初步查清了缺陷产生的原因,提出了消除和减少缺陷产生的途径。 ZL401 aluminum alloy die-casting products used in our electrical and mechanical products have some shortcomings in recent period, such as “yellow dots” on the surface after anodization, difficult or brittle cutting, and crack on the edge. These defects have a serious impact on production and product quality. To this end, we analyze it, initially identified the causes of defects, put forward ways to eliminate and reduce defects.