摘要
借助ProCAST软件对涡轮导向器开展工艺设计与数值模拟,深度分析充型-凝固过程的潜在问题及缺陷形成原因。在此基础上,通过调整浇注方式、冒口数量与尺寸、铸件凝固顺序等措施优化了工艺,同时进行了数值模拟。结果表明,优化工艺的充型过程较为稳定,其铸件遵循顺序凝固原则且未形成缺陷,金属利用率由12.13%提高至43.18%,并通过实际铸件对优化工艺进行验证,铸件质量满足EMS52301/2规范要求。
Process design and numerical simulation of the turbine nozzle were carried out with the help of ProCAST software,and potential problems and causes of defects in the filling and solidification process were analyzed in detail.On this basis,the process was optimized by adjusting the pouring method,riser quantities and size,and casting solidification order,and numerical simulation was carried out.The results demonstrate that the filling process of the optimized process is stable,the casting can sequentially solidify without defects,and the metal utilization rate is increased from 12.13% to 43.18%.The optimization process is verified by the actual casting,the casting quality meets the requirements of specification EMS52301/2.
作者
周志军
王亚宇
黄鹏飞
张波
李洪伟
谢锦丽
ZHOU Zhijun;WANG Yayu;HUANG Pengfei;ZHANG Bo;LI Hongwei;XIE Jinli(Beijing CISRI Gaona Materials&Technology Co.,Ltd.,Beijing 100081,China;Dekai Inteligent Casting Co.,Ltd.,Zhuozhou 072750,China;Beijing Key Laboratory of Advanced High Temperature Materials,Central Iron and Steel Research Institute,Beijing 100081,China)
出处
《热加工工艺》
北大核心
2023年第19期62-66,共5页
Hot Working Technology
基金
国家自然科学基金联合基金重点支持项目(U1708253)
国家重点研发计划资助项目(2017YFB0702901)。
关键词
涡轮导向器
精密铸造
数值模拟
金属利用率
turbine nozzle
precision casting
numerical simulation
metal utilization rate
