学术论文

      基于ProCAST软件优化压水堆核电站一回路弯管铸造工艺

      Casting technique optimization of the primary coolant bent pipes used for a pressurized water reactor nuclear power plant by ProCAST software

      摘要:
      利用ProCAST软件对压水堆核电站一回路90°弯管的充型和凝固过程进行了模拟.结果表明,浇注过程中金属液充型平稳,浇注系统设计符合顺序凝固原则.利用固相率法预测了弯管易出现缩孔缩松的位置,优化设计后获得了无缩孔缩松的弯管铸造工艺.研究表明,运用ProCAST软件有利于提高弯管铸件的工艺出品率.
      Abstract:
      The filling and solidification processes of the primary coolant 90° bent pipes in pressurized water reactors(PWR) were simulated by ProCAST software.The simulation results show that molten steel can be filled smoothly,which demonstrates that the gating system plan meets the directional solidification principle.The locations of shrinkage and porosity in the bent pipes were predicted by using the solid fraction method.A series of technique optimizations were carried out in order to eliminate the shrinkage and porosity,so an optimized casting technique was finally obtained for the bend pipes.It is indicated that the casting yield of the bent pipes can be increased using ProCAST software analysis.
      作者: 吉晓霞 [1] 王根启 [2] 杨滨 [1] 王西涛 [1]
      作者单位: 北京科技大学新金属材料国家重点实验室,北京,100083 烟台台海玛努尔核电设备有限公司,烟台,264003
      刊 名: 北京科技大学学报 ISTICEIPKU
      年,卷(期): 2012, 34(2)
      分类号: TG262
      机标分类号: TL3 TM6
      在线出版日期: 2012年4月28日
      基金项目: 国家高技术研究发展计划重点资助项目