PVC plastic pellets are made of various additives added to PVC resin powder, including heat stabilizers, plasticizers, impact modifiers, processing aids, lubricants, fillers, colorants, etc. According to the different processing of PVC plastic granules, we can divide it into injection molding grade and extrusion grade, and according to the plasticizer content of PVC plastic granules, it can be divided into hard granules and soft granules. Rigid PVC injection molding process refers to the injection pressure excitation process of rigid PVC plastic granules, which is a more important processing and injection molding index of PVC plastic granules. Rigid PVC plastic pellets have poor fluidity and low plasticizer content, which makes it difficult to process PVC plastic pellets. The following points should be paid attention to when performing rigid PVC injection molding. Points: first, injection temperature; second, injection pressure; third, use larger injection molding equipment.
