半固态AlSi7Mg合金在封闭竖直圆柱空间中触变变形和流动的研究  

Study on Thixotropic Deformation and Flow of Semisolid AlSi7Mg Alloy Slurry in Closed Columnar Cavity

作　　者：陈晓阳[1] 唐靖林[1] 曾大本[1] 钟雪友[2] 

机构地区：[1]清华大学机械工程系,北京100084 [2]北京科技大学铸造研究所,北京100083

出　　处：《铸造》2000年第9期519-522,共4页Foundry

摘　　要：半固态合金挤压工艺的关键是控制半固态合金坯料的流动和变形。在实际工程应用中 ,半固态合金坯料的挤压铸造成形主要是通过在二维和三维约束空间中的变形和流动而实现的。本文论述了半固态AlSi7Mg合金坯料在三维封闭圆柱空间中触变变形和流动的规律。Controlling deformation and flow of semisolid alloy slurry is the key of die casting of semisolid alloy.In actual applications,squeezing cast forming of the semisolid alloy slurry is mainly accomplished through deformation and flow of the slurry in a 2 D or 3 D restrained cavity.In this paper,the law of thixotropic deformation and flow of the semisolid AlSi7Mg alloy slurry in a closed columnar cavity is described.

关 键 词：半固态铸造 触变铸造 铝硅镁合金 流动 触变变形 

分 类 号：TG249.7[金属学及工艺—铸造]