Extrusion
3 DAY LECTURE/WORKSHOP
OFFERED TWICE:
July 13-15, 2009 (CRS# 00.728-012)
August 10-12, 2009 (CRS# 00.728-021)
TUITION: $1195
OVERVIEW
This seminar offers comprehensive coverage of the extrusion of polymeric
materials. It is intended for individuals who have little or no background in
the extrusion process or for those who have been using single and twin screw
extruders and want to gain a thorough understanding of the interrelationships
between the polymeric materials, the equipment and processing variables.
Lectures discuss the significant characteristics of polymeric materials and
their effect on the extrusion process. Types of extruders and their components,
equipment specifications, instrumentation, and screw geometry are discussed.
Operational principles including solids conveying, plastication, mixing and
pressure generation of single and twin screw extruders are explained. Specific
extrusion processes including blown and flat film, tube and pipe, profiles,
extrusion coating and foam extrusion are discussed, and expanded upon if
requested by participants. Troubleshooting techniques and operational strategies
are covered.
CONTENT
Characteristics of Polymer Materials-
Molecular weight; molecular weight distribution; properties of bulk materials;
polymer rheological properties; thermal properties
Types of Extruders
Extruder Components
Operational Characteristics (Single & Twin)-
Zonal distribution & function; solids conveying principles; melting theories;
conveying & pressure generation; screw characteristic curves; screw design
principles; conveying, melting, mixing, venting & pressure generation; extruder
output calculations; basic demands of production
Extrusion Processes- Blown & flat film; tube & pipe; profiles; extrusion coating; wire coating; foam
extrusion; fiber spinning; coextrusion
Troubleshooting Techniques
Most of the afternoons will be spent in the Plastics Process Engineering Labs
with hands-on experience in start-up, shutdown and troubleshooting single and
twin screw extrusion operations. Demonstrated extrusion processes: blown film,
flat film, tubes & pipes, foam extrusion and compounding with twin screw
extruders.
INSTRUCTOR
Dr. Carol Barry
© 1995-2008 University of Massachusetts Lowell,
Continuing Studies, Corporate & Distance Education