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  • Plastics Extrusion | Plastics Technology
    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 heated barrel, where it is mixed, melted and pumped through a die The die gives the part its shape Types include film extrusion, sheet extrusion, pipe, profile and tubing extrusion
  • Extrusion: Start Up and Shut Down Properly | Plastics Technology
    Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, Plastic Materials, and Resin Pricing All original technical content on our sites and in our publications is created by Gardner Business Media staff and contributing writers
  • Pipe, Profile and Tubing Extrusion | Plastics Technology
    Extrusion Excellence: This Year's Top Stories Revisit the year’s most popular articles on extrusion technology and processes, showcasing innovations, best practices, and the trends that captured the plastics processing community’s attention Read More
  • EXTRUSION: Melting 101 | Plastics Technology - ptonline. com
    Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, Plastic Materials, and Resin Pricing All original technical content on our sites and in our publications is created by Gardner Business Media staff and contributing writers
  • Film Extrusion | Plastics Technology
    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 quenched, pulled to a second set of rolls to cool the other side, then wound In blown film extrusion, plastic is extruded into a cylindrical die, then inflated to form a bubble, which is cooled
  • Sheet Extrusion Line | Plastics Technology
    Sheet Extrusion Line 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 Feedblock that is preceded by one or more additional extruders sets as described above), feeding a flat sheet die
  • Compounding | Plastics Technology
    Compounding extrusion lines are typically equipped with gravimetric feeding systems that dose materials into the extruders at very specific rates In certain applications, extruders are equipped with vent ports that pull unwanted moisture and other volatiles from the polymer stream
  • Stop Die Buildup | Plastics Technology
    The air sweep is a wand contoured to the extrusion profile shape, with holes drilled in it to distribute compressed air The air sweep can direct any smoke and condensables away from the die Air sweeps also have the benefit that they can cool die buildup so it doesn’t oxidize and turn dark




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