圆形压铸件浇注系统对充填流态影响的数值分析  

Simulation Analysis on the Effect of Gate System of Circular Die Casting on the Fill Shape

作　　者：揭小平[1] 闫洪[1] 袁有录[1] 陈国香[1] 

机构地区：[1]南昌大学,江西南昌330029

出　　处：《铸造技术》2006年第1期63-66,共4页Foundry Technology

基　　金：国家自然科学基金(50465003);江西省自然科学基金(0350005);华中科技大学塑性成形模拟及模具技术国家重点实验室开放基金(04-8)资助项目

摘　　要：建立了圆形压铸件三类典型浇注系统,利用数值模拟分析了各自的充填流态及充型时型腔内涡流、卷气等缺陷产生的原因,为优化溢流排气系统的位置和尺寸提供参考。分析比较得出适合圆形压铸件浇注系统设计时的横浇道张角夹角范围,以及溢流槽与排气槽之间位置尺寸相互影响的关系。Based on three typical kinds of gate systems of circular die casting, the different fill shaper and the defects such as eddy and gas in the mould were analyzed by numerical simulation. The simulation provided a reference for optimizing the position and dimension of overflow and exhaust system of runner and gating. Though analysis and comparison, the appropriate angular aperture of runner and the interrelationship between overflow and exhaust system were achieved for the circular die casting.

关 键 词：浇注系统 充填流态 数值分析 

分 类 号：TG249.2[金属学及工艺—铸造]