缸体消失模铸造数值模拟与工艺优化  

Numerical Simulation and Process Optimization for the Expendable Casting Process of the Cylinder Body

作　　者：张国强 赵占西[1] 顾君捷 邹如峰 何鑫松 徐秋湘 Zhang Guoqiang;Zhao Zhanxi;Gu Junjie;Zhou Rufeng;He Xinsong;Xu Qiuxiang(College of Mechanical Engineering,Hohai University;Jiangsu Gaode Environmental Protection Technology Co.,Ltd.;Sail Yangzhou Co.,Ltd.)

机构地区：[1]河海大学机电工程学院 [2]江苏高德环保科技有限公司 [3]风帆扬州有限责任公司

出　　处：《特种铸造及有色合金》2019年第1期63-66,共4页Special Casting & Nonferrous Alloys

摘　　要：通过ProCAST软件对12缸铸铁缸体的消失模铸造工艺进行模拟,对可能产生的缩孔、缩松缺陷进行预测分析,并对铸造工艺进行了工艺优化。结果表明,采用中间浇注方式,缸体"V"型倒置,铸件充型平稳,不需设置冒口就可以实现无缩孔、缩松缺陷。通过X射线检测和剖面观察,实际生产铸件内部无缩松、缩孔缺陷,力学性能达到要求,大大提高了铸件的合格率。The expendable casting process of 12-cylinder cast iron bodies was simulated by the ProCAST software.The possible shrinkage porosities(holes),and porosity were predicted and analyzed,and then the processing parameters were optimized.The optimized results show that middle pouring way with cylinder body"V"type inverted is satisfied.The simulated results show that the filling process is stable and absence of shrinkage porosities(holes)without adding riser can be observed.There are absence of shrinkage porosities(holes)in the casting by using X-ray,and mechanical properties of the castings meet the requirement,greatly improving the production yield.

关 键 词：缸体 消失模铸造 数值模拟 工艺优化 

分 类 号：TG143.2[一般工业技术—材料科学与工程] TG249.6[金属学及工艺—金属材料]