摘要
结合简单形状铸件,对顶注式浇注系统的充型过程进行了数值模拟。结果表明:充型过程很不平稳,金属液呈喷溅状充填型腔;直浇道压力头几乎无作用;由于剧烈涡旋的影响,铸件温度分布较均匀。这些特点与实际顶注式浇注系统较吻合。
Combining the casting with simple geometric shape, the filling process of top-pouring system was numerically simulated. The results indicate that filling process is very unstable, molten metal is spurt to fill the mold cavity; effect of pressure head of sprue is not obvious and temperature distribution of the casting is uniform for impact of drastic vortex. These characteristics agree well with those of real top-pouring gate system.
出处
《热加工工艺》
CSCD
北大核心
2013年第3期47-49,共3页
Hot Working Technology
关键词
顶注
浇注系统
充型过程
数值模拟
温度分布
top-pouring
gating system
filling process
numerical simulation
temperature distribution
