Jan 2, 2026 · Extrusion is a continuous process through which parts of a fixed cross-sectional profile are made. Material is fed through a hopper into an extruder, essentially a rotating screw surrounded by a …

Jul 29, 2016 · All extrusion processes experience molecular orientation due to the inherent strain applied to the long-chain molecules as the polymer is shaped and flows through the die.

Dec 5, 2025 · Film extrusion is divided into two subcategories: cast film (flat film) and blown film. In cast film extrusion, hot plastic is extruded through a flat, slit die onto a polished chill roll where it is …

Dec 1, 2025 · Pipe is formed when plastics is extruded through a round shaping die, cooled in a water bath, and either cut and coiled. Used in manufacture of medical tubing; PVC pipe; HDPE pipe; …

Oct 24, 2025 · Plastics Extrusion Expert Jim Frankland, President of Franklin Plastics Consulting, delves into solutions and troubleshooting for film extrusion, sheet extrusion, pipe, profile and tubing extrusion.

Mar 24, 2004 · Gels are a common quality problem in thin film and tubing extrusion. To solve them, learn from where they came.

Nov 23, 2015 · EXTRUSION: Melting 101 Learn the basics on how polymer melts in a single screw. Barrel temperature plays less of a role than you might think.

Jul 7, 2025 · Sheet extrusion includes manufacture of industrial plastic sheet; packaging sheet; thin-gauge sheet; thick-gauge sheet; thermoformed sheet.

May 13, 2023 · Dryers are used to minimize or eliminate problems that moisture in the plastics cause during processing. Includes resin drying; hygroscopic resins; desiccant dryer; wheel dryer; vacuum …

Feb 7, 2011 · A sheet extrusion line consists of an Extruder (single or twin screw), equipped with a Screen Changer and a Gear Pump, followed by a Static Mixer (sometimes feeding a Coextrusion …