This two-day seminar is based on Screw Rotation Physics and is specifically designed for plastics practitioners and professionals who need to understand the technology of single-screw extruder design and analysis.

The course will cover basic extruder design, screw design fundamentals, and extruder operation as they apply to stand alone extruders, injection molders and “compounding/mixing” in single screw devices. Topics to be covered are solids conveying, melting, metering, mixing, viscosity effects, material degradation and temperature rise in single-screw extruders.

Numerous troubleshooting case studies will be presented that deal with topics such as black specs, gel contamination, flow surging, and the effect of power-law polymers on predicted rate.

• Why metering section must control rate
• Melting mechanism
• Calculation of Deep Channel output
• Temperature control
• Metering of power law polymers
• Sources of gels and black specks
• Mixing in single screws
• Mixing device design issues
• Flow surging
• Use of high performance screws
• Multiple Trouble Shooting Examples