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The material selection platform
Plastics & Elastomers
The material selection platform
Plastics & Elastomers
Online Course

Introduction to Twin Screw Configuration and Design

28 Days left to register

Wednesday Mar 18, 2020

Overcome your polymer compounding challenges (melt disturbance, uneven material thickness, surging…) by unravelling the underlying science behind twin screw extruder configuration and design.

Kenneth Russell will explain how different element designs function to ensure proper distribution & dispersion of ingredients & materials. He will also lay focus on unit operations like polymer melting, mixing, devolitalization... to help you achieve high quality & productivity.

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Read the full Course Outline

Kenneth Russel Presented By:
Kenneth W Russell

Length: 90 min

Course Type: Technology
Level: Beginner

Next Session: Mar 18, 2020
11:00 a.m. (New York City)
4:00 p.m. (Paris)

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Why should you attend?

You will agree that a twin-screw extruder design plays a significant role in ensuring that all the ingredients are distributed evenly, dispersed well, and the compound is processed at the correct melt temperature.

However, getting all these factors right can fail miserably, if your twin screw configuration and design is not up to the mark. So, why rely on hit & trial, when the solution is right in front of you! Attend this course to:

  • Get a detailed view of screw design & configuration with a better understanding of extrusion science and compounding process parameters.

  • Easily adapt your extruder to suit new material by better understanding how different element designs function to promote unit operations such as solids conveying, polymer melting, mixing, devolitalization, pumping…

  • Address challenges & troubleshoot compounding instabilities (melt disturbance, surging…) by implementing the tips & tricks shared by the expert.

Who should attend?

R&D Chemists, Compounders, Engineers and Technicians working with twin screw extruders and new materials, looking to accelerate their learning curve & solve complex compounding challenges.

 

Course Outline

The following sections will be covered during this course:
  1. Extrusion of plastics – Overview

  2. Operations of a compounding line
    • Components in detail (feed hopper, continuous barrel, long tapered screw, die)

  3. Single screw compounding
    • Operation of a single screw extruder

  4. The compounding extruder as a series of unit operations
    • Feeding
    • Melting
    • Downstream feeding
    • Mixing
    • Venting
    • Pumping

  5. Configurability of the twin-screw extruder
    • Clam Shell Barrels
    • Segmented Barrels
    • Closed Barrels
    • Open Barrels
    • Side feed Barrels
    • Assembled Barrels

  6. Function of screw elements
    • Conveying
    • Melting
    • Mixing
      • Distributive
      • Dispersive
      • Liquid

  7. Designing a screw configuration
    • Product transport
    • Downstream addition of additives
    • Devolitalization
    • Pumping

  8. Examples of Screw Designs
    • Filled polymer
    • Glass filled polymer
    • Liquid addition compounding
    • Pelletizing powder
    • Incorporating nanoparticles

  9. 30 mins Q&A – Ask your questions directly to the expert!

  10. Have a query ? Email us for any help !

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Members Reviews

Good technical overview of compounding

Raleigh D. , from Solvay

Good fundamental approach to systematic design for twin screw configuration

Kwok N. , from SureWin

Excellent! The basics are good explained, nothing was missed. Also the screw examples are helpful!

Tim L. , from Clariant Palstics & Coatings Germany

Being a twin screw extruder user it was very useful to me. I learnt about technical specifications of screws, vents, compounding elements, etc.

Parag P. , from UNIVERSAL MASTERBATCH LLP

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