基于ProCAST的压气机定子整体铸造工艺分析与改进  

Analysis and Improvement of Casting Process of Compressor Stator Based on ProCAST

作　　者：李燕杰 孙少纯[1] 王晓磊 刘雁焘 LI Yanjie;SUN Shaochun;WANG Xiaolei;LIU Yantao(School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《热加工工艺》2022年第17期47-53,共7页Hot Working Technology

摘　　要：某型压气机定子铸造过程复杂、周期长、成本高。为了解决这一问题,借助ProCAST软件对定子的铸造方案进行数值模拟并分析缺陷产生的原因。根据缺陷位置提出从浇注系统结构及工艺参数两方面进行方案的优化。最后通过熔模铸造工艺生产出合格的Inconel718C高温合金定子铸件。研究结果表明,通过优化可以有效减少铸件的缩孔缺陷。优化后的工艺参数为:浇注温度1480℃、型壳温度1200℃。The stator casting process of a compressor was complicated, the period was long, the cost was high. In order to solve this problem, the casting scheme of stator was numerically simulated by ProCAST software and the causes of defects were analyzed. According to the defect position, the scheme was optimized from two aspects: pouring system structure and process parameters. Finally, the qualified Inconel718C superalloy stator castings were produced by investment casting process.The results show that the shrinkage cavity can be reduced by optimization. The optimized process parameters are casting temperature of 1480 ℃ and shell temperature of 1200 ℃.

关 键 词：镍基铸造高温合金 熔模铸造 PROCAST软件 凝固模拟 缩孔 

分 类 号：TG249.5[机械工程—精密仪器及机械]