本文通过试验，研究了ＣｕＡｌＢｅ合金铸造气孔缺陷与工艺的关系。试验表明，ＣｕＡｌＢｃ合金铸造时易吸气并产生气孔，熔炼和浇注工艺对气孔的形成有重要影响。大气下熔炼时合金液的含气量大，真空熔炼并结合吹氮（氩）等精炼除气工艺可显著降低合金液的含气量；而铸件最终是否存在气孔缺陷，关键在于浇注工艺。提高凝固速度、减少二次氧化夹渣，并造成自下而上的顺序凝固，可阻碍气泡的形成。因此，采用金属型或砂型加放冷铁，进行低温底注并点补冒口的浇注工艺，能大大减少气孔缺陷，提高ＣｕＡｌＢｅ合金铸件的成品率 In this paper, through experiments, the relationship between the defects and the process of CuAlBe alloy casting was studied. Experiments show that, when casting CuAlBc alloy easy to inhale and produce porosity, melting and casting process on the formation of stomata have a significant impact. In the atmosphere, the gas content of the alloy liquid during melting is large, and the vacuum degassing combined with the refining degassing process such as blowing nitrogen (argon) can significantly reduce the gas content of the alloy liquid. The key point of the casting process is whether the porosity of the casting finally exists. Improve the solidification rate, reduce the secondary oxidation slag, and cause the bottom-up order of solidification, can hinder the formation of bubbles. Therefore, the use of metal or sand plus chilled iron, at the end of the low-temperature injection and recharging spout pouring process can greatly reduce the porosity defects and improve the yield of CuAlBe alloy castings