摘要
针对镁合金发动机缸体设计了2种不同类型的浇注系统,运用铸造模拟软件ProCAST对2种浇注系统下铸件的充型和凝固过程进行模拟,预测了充型时间、凝固时间和铸件中可能存在的缩孔、疏松及气孔缺陷的分布与尺寸,提出了优化的浇注系统设计。结果表明:在浇注温度670℃、模具初始温度220℃、压射速度8.5m/s的条件下,扇形浇注系统设计优于梳形浇注系统设计。
Two gating systems were designed for a die casting die for a magnesium alloy engine cylinder. The filling and solidifying process was simulated with finite element software ProCAST. The filling and solidification time, the distribution of defects like shrinkage, shrinkage porosity and their sizes were predicted and an optimized gating system was planned. The result shows that under the condition of 670℃ of gating temperature, 220℃ of initial mould temperature and 8.5m/s of injecting velocity, the fan gating system design is better than the comb-shaped gating system.
出处
《模具工业》
2012年第2期29-33,共5页
Die & Mould Industry
关键词
压铸模
发动机缸体
浇注系统
优化
数值模拟
die casting die
engine cylinder
gating system
optimization
numerical simulation
