涡轮增压器壳体铸造工艺数值模拟  

Numerical Simulation of Casting Technology for Turbocharger Shell

作　　者：孟冬波[1] 徐锦锋[1] 王超[1] 师素粉[2] 王玉峰[2] 朱爱军 高军 

机构地区：[1]西安理工大学材料科学与工程学院,陕西西安710048 [2]中国航空工业第一集团公司庆安集团有限公司,陕西西安710077 [3]盐城多为集团有限责任公司,江苏大丰224115

出　　处：《铸造技术》2011年第10期1399-1402,共4页Foundry Technology

基　　金：陕西省教育厅产业化项目(09JC09);江苏省高层次创新创业人才引进计划(苏人才办[2010]3号)

摘　　要：采用Pro/E软件为前处理平台,以ProCAST软件为模拟平台,对涡壳件充型及凝固过程进行了模拟仿真。通过预测产生收缩缺陷的敏感区域,对涡轮增压器壳体(涡壳)的铸造工艺进行了分析与评价。结果表明,铸件在充型初期存在一定程度的紊流,但充型速度较低,产生裹气、夹渣等缺陷的可能性较小;缩孔缩松敏感区主要分布于几何热节处和流道法兰根部等处,而以涡壳底部与流道相贯的几何热节处最为敏感,但与单内浇道引入工艺相比,双内浇口引入工艺产生缩孔缩松缺陷的可能性明显减小。Analog simulation was conducted on the filling and solidification of turbocharger shell by using Pro/E software as the pre-treatment platform and using ProCAST software as the simulation platform.The foundry technology of turbocharger shell was analyzed and evaluated by predicting the sensitive area of shrinkage defects.The results show that,turbulence exists in the primary stage of filling mould,but due to the lower rate of filling,the possibility of wraped gas and slag inclusions is reduced;the sensitive area of shrinkage mainly distributed in the geometric hot spot and the flange root of flow passage,the geometric hot spot at turbocharger shell bottom and interfingering connected flow passage is the most sensitive area.Contrasting with the technology of single flow gate injection,the possibility of shrinkage defects reduce significantly with the technology of double flow gate injection.

关 键 词：涡轮增压器壳体 铸造工艺 仿真 流场 温度场 

分 类 号：TG24[金属学及工艺—铸造] TP391.72[自动化与计算机技术—计算机应用技术]