球铁箱盖件的无冒口铸造工艺设计及数值模拟  

Technology Design and Numerical Simulation of Ductile Iron Cover by Head-Free Casting

作　　者：汪兴娟[1] 何顺荣[1] 李伟 李丹[1] 

机构地区：[1]合肥工业大学,安徽合肥230009

出　　处：《中国铸造装备与技术》2014年第3期47-50,共4页China Foundry Machinery & Technology

摘　　要：采用无冒口铸造工艺对球铁箱盖件进行铸造工艺设计,能够有效地减少箱盖件原工艺存在的缩松缩孔问题,并且能够大大提高铸件的工艺出品率。运用Procast铸造模拟软件模拟了该铸造工艺方案的浇注和凝固过程,结果表明铸型充型过程平稳,铸件温度场分布合理,最后能够得到致密合格的铸件。Ductile iron cover parts have been designed with head-free casting technology.Shrinkage porosity has been effectively reduced and yielding rate of castings been signiifcantly increased. The iflling and solidiifcation of the casting process have been simulated with procast software, resulting in that：smooth iflling process with reasonable temperature ifeld distribution and qualiifed compact castings obtained.

关 键 词：铸造工艺 浇注系统 数值模拟 缩松缩孔 

分 类 号：TG255[金属学及工艺—铸造]