The results showed the gating system which is according to proportional solidification, the large orifice discharge theory with blind feeder and iron chill has avoided defects of heavy ductile iron castings.
简述了某一曲轴连杆铸件的结构特点,采用顺序凝固理论和均衡凝固理论设计两种工艺方案,通过对比,结果表明,运用大孔出流,均衡凝固理论设计的浇注系统,采用暗冒口配合冷铁工艺,可以有效解决厚大球铁件生产中的铸造缺陷。
Considering of the problems exist in practice,large orifice discharge principle is employed to study the pressure distribution of ring runner system,the even ablity for discharging of gates,the relationship of flow with the position of sprue and the type of gates.
根据生产中存在的问题 ,用大孔出流理论研究了环形横浇道系统的压力分布、内浇道出流均匀性及流量与直浇道引入位置和内浇道引入方式之间的关系 ,提出了圆形铸件环形横浇道系统新的设计思
In the paper,based on the Propotional Solidification Theory and Large Orifice Discharge Theo- ry,the foundry technology of gray iron casting shell was designed by the method of CAD.
论文根据均衡凝固及大孔出流理论,用计算机辅助设计的方法改进了壳体灰铸铁件的铸造工艺。
