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
