基于ProCAST的阀体压铸数值模拟及工艺优化  

Design and Optimization of the Valve Body Die-casting Process Based on the Numerical Simulation

作　　者：孟昭昕[1] 黄勇[1] 李鑫[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2017年第5期79-83,共5页Journal of Shenyang Ligong University

摘　　要：用ProCAST数值模拟软件对阀体压铸件进行压铸过程数值模拟。模拟结果得到压铸工艺参数和内浇口尺寸大小都会对卷气量有影响,且这种影响是相互的、复杂的;而内浇口对缩松缩孔的影响大于压铸工艺产生影响。依据模拟结果确定阀体压铸工艺参数和内浇口尺寸:浇注温度630℃、模具预热温度190℃;浇注速度0.5m/s;内浇口面积75mm^2、厚度2.5mm、长度2mm。将模拟结果应用到实际生产中得到了合格的阀体压铸件。Using the ProCAST simulation software,numerical simulation of aluminum valve body die-cast process is studied. The simulation results show that air entrainment can be af-fected in a very complex way both by die casting perimeters and inner gate dimensions. In-ner gate dimensions have a greater effect on shrinkage porosity than die casting process. The final optimized die casting perimeters are pouring temperature 630℃,mold preheating tem-perature 190℃ and the injection speed 0. 5m/s;inner gate area 75mm2 ,inner gate thickness 2. 5mm and inner gate length 2mm. Appling the simulation results to actual manufacture could result in the qualified valve body.

关 键 词：阀体 数值模拟 工艺优化 

分 类 号：TG249.2[金属学及工艺—铸造]