基于Moldflow设计塑料齿轮注射模浇注系统

s the plastic gears have very good performance such as smooth running、low noise、small inertia、self-lubricating、anti-corrosion and low cost, plastic gears have been used in many fields. In the injection molding of plastic gear, suitable gate location and gate form and reasonable process parameters can reduce warpage of plastic gear, thereby the accuracy of plastic gear can be improved. In this paper, ten kinds of gating systems for injection molding of standard involute spur plastic gear were designed and then the injection molding process of plastic gear with different gating system was simulated and analyzed by Moldflow. The best gating system was finally chosen by comparison of analysis results. This article also proves that the mold structure include gating system can be optimized by CAE software Moldflow. So the efficiency of mold designing and the quality of plastic products improve greatly.