In the plastics extrusion process, raw thermoplastic material, or resin, is gravity fed from a top mounted hopper into the barrel of an extruder. Additives, such as colorants and UV inhibitors, in either liquid or pellet form are often used and can be introduced into the resin below arriving at the hopper. The process has much in common with plastics injection molding though differs in that the process is usually continual. While injection molding can offer many similar profiles in continuous…

Plastics extrusion is a high volume manufacturing process that melts and forms raw plastic material into a continuous profile. Plastic extrusion is a process that creates two-dimensional shapes on length providing the third dimension tubing, edging, moldings fence, deck railing, window frames, weather stripping, adhesive tape and wire insulation and similar products in continuous lengths or short sections. Extruded products can be utilized as it is, or may be transforming into more complex assemblies by punching, molding,…

By plasticizing, there are dry extrusion and wet extrusion processes and by pressurizing there are continuous and intermittent extrusion processes

Continuous production yields a high efficiency, simple operation for a wide range of applications, such as tubing extrusion, sheet/film extrusion etc.

Profile Extrusion

The Profile Extrusion process, such as drinking straws and medical tubing, is manufactured the same as a regular extrusion process up until the die. Placing a pin…