Shortening the processing cycle time to heighten the effect. Replacing the cold runner to avoid generating materials wastes which needs to be smashed. Advancing the destiny of the parts to enhance the product quality. Decreasing the parts stress to avoid the deformation. Adopting the valve gate by injection in step, to make the part series in different sizes. Providing more process program-control to precisely adjust the mold injection. The critical nature of the hot runner system: Precise controlling the melting plastic temperature to avoid the material degradation. Balanced manifold design making the parts cavity filling non-uniformity. The proper size of the nozzle can ensure the smoothly flow of the melting material and the sufficient filling of the cavities. The correct gate structure and size can ensure the cavities in sufficient filling , and the timely close of the pin valve gate ,to decrease the flashing ,in order to shorten the cycle time. There is no dead area in the runners to ensure the color changing quickly ,to avoid the materials being degradation. Making the stress decreased to minimum to decrease the mold locking stress. Making sure the time is proper. The correct adoption of the hot runner system will increase the production effect by 20-30%, to make the mold injection be more competitive. |