The latest technologies for Al alloy castings with hi gh soundness

mechnical properties and wear resistance as well as large complicate d shape in squeezing casting abroad and at home were surveyed. The partial pr essur ization pressure can be employed to eliminate shrinkage hole and porosity in thi ck position of large complicated parts; the vacuum liquid squeezing casting was suitable for the parts with high soundness and mechnical properties; the Al-Si alloy with high Si content and ceramics reinforced Al matrix composites can be a dopted f or parts with high wear resistance. The core with soluble salt and high collapsi bility was used for the parts with complicated cavities. The squeezing casting w ould be develpoed in practic.