The reason of misrun and cold-lap formation in thin-walled aluminum casting is analyzed . increasing gas exhaust capacity in mould and filling velocity and controlling melt temperature are favorable methods for better effect 對(duì)薄壁鑄鋁件澆不足及冷隔的形成原因進(jìn)行了分析,提出了增大鑄型排氣性、提高充型速度、控制出爐溫度的解決措施,效果良好。