Leistritz to Host Annual Twin Screw Extrusion Workshop

Leistritz announced its annual Twin Screw Extrusion Workshop happening Nov. 28–29, 2018. The event will feature classroom sessions taking place at the Holiday Inn in Clinton, NJ, and extrusion demonstrations at the company’s process laboratory in Somerville, NJ.

Classroom topics include the following:

• Co-rotating and counterrotating twin screw extrusion technology

• High speed, energy input twin screw extruder theory and design

• Comparison to low speed, late fusion designs

• Screw design and process techniques

• Techniques for dispersive and/or distributive mixing

• Sequencing of multi-stage process operations

• Devolatilization process techniques and practices

• Scale-up of the twin screw extrusion process

• Feeder and material handling for pellets, powders, and liquids

• Gear pumps and screen changers

• Pelletizing (strand cut, water ring, and underwater)

• Direct extrusion for sheet, film, fibers, and profiles

• Reactive processing

• Process troubleshooting

• Control and monitoring options

• Screw assembly and disassembly

• Twin screw extruder maintenance tips and procedures.

The workshop demonstrations at the process laboratory will cover the following topics:

• Co-rotating and counterrotating twin screw extruders

• Devolatilization via extrusion (ambient, vacuum assist, and multi-stage)

• Downstream addition of fillers, fibers, and additives

• Direct sheet/film extrusion with gear pump front-end

• Foam extrusion via supercritical injection.

The workshop will also include industry and academia contributions.

Source: Leistritz