泵体的热流道注塑成型过程模拟分析

利用MPI软件对泵体的热流道注塑成型过程进行模拟仿真,结果表明:将浇口设置在泵体锥部中心可以实现平衡充模,最大体积收缩率和制品最高温度发生在泵体锥部中心,制品冻结时间在泵体法兰凹槽处最长,最大翘曲量位于泵体法兰底部,合模系统所需最大锁模力为32.6 t,注射系统所需最大注射压力为25.15 MPa,采用三排管路冷却系统可以有效降低泵体制品成型加工后的最高温度,热流道系统在节能降耗、降低生产成本等方面比冷流道优越.

Simulation of the Hot Runner Injection Molding Process for the Pump Body

Simulation of the hot runner injection molding process of the pump using MPI software shows that placing the gate in the center of the pump body cone can achieve equilibrium filling;the maximum volumetric shrinkage rate and the product maximum temperature occur in the pump cone;the product’s freezing time is the longest in the pump body’s flange grooves;the maximum warpage is at the bottom of the pump flange;the maximum clamping force required by the clamping system is 32.6 t;and the maximum injection pressure required by injection system is 25.15 MPa.The adoption of the three-row pipe cooling system can effectively reduce the maximum temperature of the pump product.The hot runner system is better than the cold runner system in energy saving and consumption reduction and in lowering production cost.