设计了一种特殊结构的铝合金薄圆盘压铸模，论述了模具结构特点和工作原理。该模具采用中心浇道，形成铸件通孔的型芯兼作分流锥。
The die casting die with special structure for aluminum alloy thin disk was designed, and the structure features and operating principle of the die were described.
介绍了差分流量调节的计算方法和内喷管与塞锥推力矢量变化的分析过程，计算产生的俯仰力矩。
The computing method of differential throttling and the analytical process of thrust vector of inner nozzle and plug were introduced. The generated moments of pitch were given.
根据计算结果，分流比对分割尺寸的影响比较小，半锥角、溢流口尺寸与底流口尺寸对分割尺寸的影响比较大。
It is indicated that the split ratio has a relative small effect on the cutting size while the semi cone Angle and sizes of overflow and underflow orifices have very large effects.
挤压结果表明：平模、锥模和前置保护分流模成型质量较好，而替代式保护分流模挤压失败；
The results show that the extrusion quality of even die, cone die and pre protection die are better, but that of the replace die is worse.
挤压结果表明：平模、锥模和前置保护分流模成型质量较好，而替代式保护分流模挤压失败；
The results show that the extrusion quality of even die, cone die and pre protection die are better, but that of the replace die is worse.
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