1、 The following problems should be considered in the formulation of zinc alloy die casting process:

1. Whether the molten metal can flow cleanly and stably in the gating system, and there will be no separation and eddy current.

2. Is there a sharp corner or dead zone?

3. Is there any change in the cross-sectional area of the gating system?

4. Is the position of exhaust groove and overflow groove correct? Is it big enough? Will it be blocked? Can the gas be discharged effectively and smoothly? The purpose of computer simulation of filling process is to analyze the above phenomena and select reasonable process parameters by judgment.