| With the developing of computer software and hardware, injection plastic mould CAE has achieved tremendous developments. The defects can be discovered before mould is manufactured through using CAE. It changed the traditional way that depends on experience and intuition to test and modify mould time after time.In this paper, the development situation and system of injection plastic mould CAE are introduced summarily first. Second, flow simulation theory of injection plastic mould is introduced, math model of flow is established. Based on the application of CAE to the design of injection plastic mould, according to polymer rheology, with the object of effective utility ratio of pressure, established a new way of calculating runner's section. At last, the How simulation of a computer's panel is carried through as an example. The results are analyzed in detail, initial design is modified and better design is got. |