摘要
以Pro/E作为三维造型软件,利用MAGMAsoft对铸造工艺优化设计有良好评价的功能,对阀体铸件铸造生产过程进行了CAD/CAE研究,成功地对铸件进行充型凝固模拟;对铸钢阀体铸件的原工艺方案进行分析和改进,准确地反映了铸件充型凝固过程的实际状况,预测了可能产生的铸造缺陷及其部位。结果表明:通过增大冷铁,添加蓄热系数大、导热快的砂芯,热节推移到两法兰的冒口中,阀体薄壁同步凝固,可有效地避免铸件中缩孔、缩松及疏松的产生。
Taking Pro/E as three-dimensional modeling and MAGMAsoft having good appraisal functions to casting technology optimization design, the CAD/CAE research on the actual production of valve body castings was done, the filling and solidification process of castings was simulated successfully; the original casting process was analyzed and improved, the actual state of castings filling and solidification was reflected accurately, and the defect as well as its position that may appears during filling and solidification process were predicted. The results indicates that by adding chill, the sand core with bigger holding-heat coefficient and quicker thermal conductive, the hot-spot is put to the riser of two flanges, the thin arm of valve body fi＇eezes synchronously, and the goal of dispelling and controlling the defect is achieved.
出处
《热加工工艺》
CSCD
北大核心
2009年第13期51-53,共3页
Hot Working Technology
基金
温州市科技计划项目(H20080069)
兰州理工大学博士基金项目(SB14200801)
关键词
阀体
铸造工艺
数值模拟
热节
valve body
casting technology, numerical simulation
hot sopt
