大型薄壁件真空压铸模具的设计方法  

Design method of the vacuum die-casting mould for large-scale thin shell part

作　　者：黎文峰[1] 陈鼎宁[1] 

机构地区：[1]福建工程学院材料科学与工程系,福建福州350108

出　　处：《黑龙江工程学院学报》2009年第4期62-64,共3页Journal of Heilongjiang Institute of Technology

基　　金：福建省科技重大专项专题项目(2006HZ0002)

摘　　要：大型薄壁件在压铸中极易产生缺陷,采用正确的压铸工艺与模具结构设计,并将模具型腔抽真空,有效减少缺陷。采用数值模拟辅助法确定浇口形式,以及压铸时的料包和抽气口的位置,合理确定抽气时序,选择合理的压铸工艺,最后得到合格铸件。Producing the large-scale thin shell part can easily result in defects. It can effectively reduce defect with the correct die-casting process and mould structure design and the mold cavity vacuum. Numerical simulation-assisted method to determine gate and the pouring system , and position of the slag traps and location of the exhaust port provide the basis for proper design mould structure. With rationally determined the exhaust timing and a reasonable die-casting process, the final casting can be qualified.

关 键 词：大型薄壁件 真空压铸 数值模拟 模具设计 

分 类 号：TG249.2[金属学及工艺—铸造]