差压铸造VW63Z稀土耐热镁合金舱体  

Differential Pressure Casting VW63Z Heat Resistant Rare Earth-magnesium Alloy Cabin

作　　者：崔恩强 孙浩 刘颖卓[1] 陈俊杰 何凯[1] 游辉辉 王林[1] 蒋李超 Cui Enqiang;Sun Hao;Liu Yingzhuo;Chen Junjie;He Kai;You Huihui;Wang Lin;Jiang Lichao(Shanghai Spacefli GHT Precision Machinery Institute)

机构地区：[1]上海航天精密机械研究所

出　　处：《特种铸造及有色合金》2019年第11期1223-1225,共3页Special Casting & Nonferrous Alloys

摘　　要：针对VW63Z稀土耐热镁合金舱体铸件的结构及技术难点,进行了铸造工艺分析。利用ProCAST软件对其铸造工艺进行数值仿真,模拟了铸造缺陷并进行了原因分析,发现铸造过程中易在舱体厚大部位、厚壁过渡区域等热节处产生缩松、缩孔。根据模拟结果优化了铸造工艺参数,由直浇道、"十"字形横浇道及立筒缝隙浇道组成的浇注系统充型平稳,补缩良好。采用差压铸造工艺浇注出了品质优良的舱体铸件。The casting process was nalyzed for the structural and technical difficulties of VW63Z heat resistant rare earth-magnesium alloy cabin.The ProCAST software was applied to simulate the filling and solidification field of the casting process,and the origination of casting defect was described.Shrinkage porosity(holes)can be visualized at the hot spot of thick-large location and transition zone of thick wall of the cabin.Based on the simulated results,the casting parameters were optimized.The gating system composed of sprue,+shape runner and vertical cylinder slit gating presents stable filling effects with desirable feeding effects.Differential pressure casting can produce the qualified cabin.

关 键 词：VW63Z镁合金 稀土耐热 差压铸造 

分 类 号：TG249.2[金属学及工艺—铸造] TG146.22[一般工业技术—材料科学与工程]