Abstract: Computer aided design of gating system is a important part to realize the foundry technology CAD system. On the basis of analysis of various gating system both in vertical and horizontal parting plane, a matrix flowing process method is put forward to solve the general task of software design. Matrix flowing process can be used to describe directly the metal melt motion line, flowing rate and volume for different complex gating system. It provides an effective computation method to deal with the generalization of software design for foundry technology. Comparing with the plotting method, it has several advantages such as simplicity, generality, shorter program, quicker computation speed and less internal storage.

Key words: 浇注系统, 流路矩阵, 数值模拟, 水模实验