智能控制真空差压铸造铝合金铸件组织和性能的研究  

Study of Structure and Property of Vacuum Counter-pressure Casting Aluminum Alloy Based on Intelligent Control

作　　者：严青松[1] 余欢[1] 魏伯康[2] 徐志峰[1] 蔡长春[1] 万红[1] 

机构地区：[1]南昌航空工业学院,江西南昌330034 [2]华中科技大学,湖北武汉430074

出　　处：《铸造技术》2006年第7期748-752,共5页Foundry Technology

基　　金：国防科工委科技项目(BB200300088);江西省材料科学与工程中心开放项目(编号ZX200301003)

摘　　要：通过对智能控制真空差压铸造和重力铸造铝合金铸件组织和性能的比较,研究了新型的反重力铸造法-智能控制的真空差压铸造铝合金铸件的组织和性能。结果表明,智能控制的真空差压铸造工艺结晶形核和凝固补缩条件良好,铸件的晶粒细小,组织均匀致密,力学性能得到很大提高。The paper studied structure and properties of a new counter-gravity casting method- vacuum counter-pressure casting aluminium alloy castings based on intelligent control by comparing vacuum counter-pressure casting with gravity casting. The result indicated that condition of crystal nucleus and solidification feeding of vacuum counter-pressure casting based on intelligent control was very good, thus grains of castings was fine, and structure was dense and uniform, meanwhile, its mechanical properties were improved greatly.

关 键 词：真空差压铸造 铝合金铸件 组织 性能 

分 类 号：TG249.2[金属学及工艺—铸造]