Hole Defects Analysis and Preventive and Control Measures of Compressor Housing
Author of the article:QU Jialong
Author's Workplace:Wuxi Lihu Corporation Limited, Wuxi 214124, China
Key Words:compressor housing casting; gracity casting process; pinhole; air hole; slag hole; shrinkage cavity
Abstract:In view of the gravity casting of aluminum alloy in the pressurized air casing, according to the specific
morphology of the hole defects, the hole defects on the surface or inside of the casting were observed, analyzed and
classified, and the formation mechanism was analyzed. Based on the mechanism of defects and the actual situation of the
production process, the prevention and control measures of hole defects were put forward from the perspective of
technology and production management. The results show that the casting quality can be guaranteed and the production
cost can be saved by reducing the occurrence of hole defects.