Oct 8, 2025 · 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 …

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.

Jan 1, 2009 · Stop Die Buildup Die buildup, also called die drool, die bleed, or plate-out, can plague any extrusion process.

Dec 25, 2010 · Extrusion: Start Up and Shut Down Properly A key goal during startup and shutdown of the extruder is to prevent degradation of the polymer left in the extruder and …

Oct 10, 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 …

Oct 13, 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 …

Oct 1, 2001 · A troubleshooting timeline is essential to help you quickly identify problems and their causes. Here we'll describe such a timeline and how to use it to solve one common …

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

Oct 1, 2025 · The latest issue of Plastics Technology magazine covers plastic technologies, shopfloor operations, and case studies written by staff editors and industry experts.

2 days ago · Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, …