Optimized DISA system parameters of a thin-wall malleable iron pipe casting by numerical simulation  

数值模拟优化DISA薄壁铸铁管铸造工艺参数（英文）

作　　者：顾涛[1] 连冬晓 覃福海 周永军 杜鹏鹏 

机构地区：[1]中北大学材料科学与工程学院,山西太原030051 [2]卡耐夫铸管有限公司,山西太谷030800

出　　处：《Journal of Measurement Science and Instrumentation》2017年第2期119-124,共6页测试科学与仪器（英文版）

摘　　要：The filling and solidification of a malleable iron pipe casting manufactured by DISA casting mold line with different design parameters were calculated by using software MAGMASOFT. Then the shrinkage porosity was predicted by thermal criterion. Based on the simulation results, the influences of the runner ratio and feeder position on the porosity were discussed. The results show that synchronization of injection can be significantly influenced by the size of downsprue section, and an de-sign structure of DISA gating system was used to solve the problem of flow imbalance in the filling procegs. At the same time, the riser was designed on the hotspot for feeding shrinkage. At last, the optimizated gating system and feeding system were ac-complished to eliminate shrinkage porosity.

关 键 词：DISA casting mold line malleable iron pipe casting shrinkage porosity numerical simulation 

分 类 号：TG250[金属学及工艺—铸造]