Controlled Low Pressure Injection Molding Features Controlled low pressure injection molding is characterized by its distinction from conventional injection molding. The conventional injection molding filling stage controls the injection rate, while the low pressure injection molding filling stage controls the injection pressure. During the low-pressure injection process, the inlet pressure of the cavity is constant,…
Injection-Compression Molding This molding process was developed for molding optical lens surfaces. The molding process is as follows: the mold is first clamped, but the movable mold and the fixed mold are not completely closed, and a certain compression gap is reserved, and then the melt is injected into the cavity; after the melt injection…
Shear Control Orientation Injection Molding Shear Control Orientation Injection molding essentially applies a dynamic pressure to the melt through a gate, causing a vibrational shear flow of the polymer melt in the cavity, under which the molecular chains or fibers in different melt layers are produced. Orientation and freezing in the workpiece, thereby controlling the…