posted April 29, 2004 10:01 PM               

PURPOSE & OVERVIEW
This seminar will provide attendees with a simplified and thorough treatment of the extrusion of engineering plastics and exotic polymers with major emphasis on how to select right grade of each material to extrude strip, tubing, profile, rod, and how to develop critical process parameters such as barrel temperature profile and screw design requirements for extruding exotic materials of the 90's and beyond. This program provides a workshop approach on how to correlate materials, process, and equipment parameters for extruding engineering plastics into various shapes. Don't miss this seminar to gain competence on how to improve extrusion of current and new engineering plastics, to reduce scrap and downtime, and to improve yield and output rates.

WORKSHOP LEADER: PRAVIN L. SHAH - Biography

SEMINAR OUTLINE

Introduction to Extrusion of Engineering Plastics
• What works for molding does not work for extrusion • Engineering plastics of the 90's and beyond

Basic Understanding of the Extrusion Process
• Components of an extruder • solids conveying plasticating, melt conveying • Types of screw designs available • Calculating theoretical output rates • Calculating sheet rates at various screw flights • Critical relation between melt temperature, melt viscosity and screw geometry • Measurement of melt temperature and control •Role of static mixers and screw melt mixers • Melt pumps and on-line rheometers

A Simple Guide to Selecting Critical Rheology Materials and Extrusion Parameters
• R.V., melt index, and total rheology testing choices for materials selection • Analysis of rheological data to develop process parameters • Materials druing requirements • How to set up correct barrrel temperatures • Stock temperature guidelines • Selecting right screw design

Guidelines for Selecting Extruder Size and Downstream Equipment for…
• Film and strip extrusion • Tubing extrusion • Profile shapes extrusion • Monofilament and rod extrusion

A Processor’s Guide to Extrusion Engineering Plastics
• Polyacetals – homopolymers, copolymers • Polyamides – Nylon 6, nylon 66, nylon 46, 11 and 12 • PET and PBT blends and alloys • Polycarbonate, PPC, other alloys • PPEK, Polysulfide, polyetherimide, polyethrer sulfone • PPS and sulfide blends and alloys • Liquid crystal polymers • Reinforced engineering materials • Other exotic high performance materials

A Workshop Session to Solve Extrusion Problems
• How to reduce scrape rates and downtime • How to improve yield and output rates • How to reclaim scrap with no sacrifice in quality• Practical quality control for materials • Do’s and don’ts for process control
http://www.4spe.org//semconf/seminars/0407exteng.htm