Manufacture Of Pet Preform Mould

Pet Preform Mould are typically manufactured using one of the three blow molding processes listed below. Injection blow molding For smaller plastic bottles, the injection blow molding process is ideal for molding a variety of polymers, including PET and HDPE. In this short film, break down these steps and see how the plastic moves from one ball to another. Extrusion blow molding The extrusion blow molding process involves extruding a molten plastic polymer, typically HDPE or LDPE, into a hollow tube or "parison." During the extrusion shuttle blow molding process, the two dies are shuttled back and forth to capture the continuously extruded parison. Learn how to be in this short film. A wide variety of bottles, cans and other containers can be molded using a common injection stretch blow molding process. The preform can be immediately formed into a final container by a one-step molding process or stored in stock for later use in a two-step molding process. In this quick video, we will break down the one-step process from particle to container. Inspection process As a final step in the pre-packaging line, PET bottles are rigorously tested to ensure they meet industry standards. Testing can include: Impact test pressure test Permeability test Transparency check China Pet Bottle manufacturers also conduct tests to ensure that the final product is the same size, shape and finish before being packaged and shipped to its final destination.