Pipe, Profile & Tubing Extrusion

Pipe is formed when plastics is extruded through a round shaping die, cooled in a water bath, and either cut and coiled. The most commonly used pipe materials are PVC and high-density polyethylene. Rigid PVC pipe is commonly used in building and construction for drain, waste and vent applications, and is processed on specialty twin-screw extruders; HDPE pipe is used for a wide range of industrial, electrical and drainage applications. Flexible pipe is often considered tubing. Tubing can be used in industrial (hoses), food (straws), medical (catheter) and a variety of other applications. Profile extrusions are typically used for windows, doors, siding and are typically made of PVC.

Knowledge Center

Insights into plastics technologies from industry experts.

Viscosity in Extrusion
Article

Understanding Viscosity in Extrusion

Both the power-law coefficient and the consistency index must be considered to calculate viscosity.

Article

K 2019 Preview: Green's the Theme in Extrusion & Compounding

Themes of sustainability and the Circular Economy will be visible at the booths of many suppliers of extrusion and compounding equipment—film, in particular.
New Product Announcements
Product

Extrusion: Two-Stage Screw Offers Distributive, Dissipative Mixing

New design from Davis-Standard offers outputs comparable to barrier screws at lower melt temperatures.