紫铜结晶器低压铸造充型与凝固过程的数值模拟  

Numerical Simulation of Mold Filling and Solidification Process of Copper Crystallizer in Low Pressure Die Casting

作　　者：夏翔[1] 周燕辉[1] 金曼曼[1] 谢世坤[1] 

机构地区：[1]井冈山大学机电学院,江西吉安343009

出　　处：《热加工工艺》2014年第21期58-59,64,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(51165010);江西省自然科学基金资助项目(20122BAB206032;20114BAB206018);江西省科技支撑计划项目(20112BBE50002)

摘　　要：采用Pro/E三维软件设计了紫铜结晶器低压铸造模型,采用ProCAST软件对它进行了充型与凝固模拟。结果表明：当充型压力为0.06 MPa、充型速度为70～80 mm/s,结壳时间为25 s,增压压力为0.08 MPa,保压时间为120s,浇注温度为1150℃,铸型温度为150～200℃时,铸件质量无缩孔、缩松等铸造缺陷,数值模拟结果与实际铸件吻合,确保了紫铜结晶器在低压铸造过程中的铸件质量。The red copper low pressure die casting model was designed by adopting the Pro/E three-dimensional software. The filling and solidification were simulated by using the ProCAST software. The results show that under the filling pressure of 0.06 MPa, filling velocity of 70-80 mm /s, the investing time of 25 s, keeping pressure of 0.08 MPa, keeping time of 120 s, pouring temperature of 1150 ℃ and mold temperature of 150-200 ℃,the casting has no cast defects of shrinkage.The results of numerical simulation coincide with the actual casting,which ensures casting quality of the copper crystallizer in the low-pressure die casting process.

关 键 词：低压铸造 紫铜结晶器 数值模拟 PROCAST PRO/E 

分 类 号：TG249.9[金属学及工艺—铸造]