section of a screw extruder of thermoplastic polymers - Students, Britannica Kids

Longitudinal section of a screw extruder of thermoplastic polymers. Plastic pellets are fed from a hopper into the barrel of the extruder, where the pellets are gradually melted by mechanical energy generated by a turning screw and by heaters arranged along the barrel. The molten polymer is forced through a die, which shapes the extrudate into products such as the examples shown.

plastic - Students, Britannica Kids

plastic - Students, Britannica Kids

Single Screw Extruder - an overview

section of a screw extruder of thermoplastic polymers - Students, Britannica Kids

Plastic Rods: Definition, Types, Applications, and Benefits

Plastic - Processing, Fabrication, Recycling

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Schematic diagram of a single screw extruder.

Plastic Extrusion • Paul Murphy Plastics