摘要
良好的浇注系统是获得高质量压铸件的必要条件。以铝合金箱盖件为研究对象,设计了扇形和锥形双切向浇注系统。在浇注温度为670℃、模具初始温度为200℃、慢压射速度0.2m/s、快压射速度2.5m/s的工艺条件下,采用MAGMAsoft软件对两种浇注系统进行了数值模拟。结果表明,锥形双切向浇注系统比扇形浇注系统充型合理,且锥形双切向浇注系统铸件整体凝固顺序合理。锥形双切向浇注系统有利于降低箱盖件产生缺陷的概率。
A well-designed gating system is a necessary condition to obtaine high quality die castings. Taking an aluminum alloy box cover as the research subject, fan-shaped and double tangential tapered gating system were designed. At the condition of pouring temperature 670℃, mold temperature 200℃, slow shot velocity 0.2 m/s, and fast shot velocity 2.5 m/s, two gating system were simulated by MAGMA software. The results indicate that double tangential tapered gating system is more reasonable than fan-shaped gating system, besides, the overall solidification sequence of double tangential tapered gating system casting is reasonable. Double tangential tapered gating system helps reduce the probability of casting defects.
出处
《热加工工艺》
CSCD
北大核心
2013年第1期35-37,共3页
Hot Working Technology
关键词
箱盖件
压铸
浇注系统
数值模拟
box cover
die casting
gating system
numerical simulation
