Introduction to Plastic processing – The need for Plastic Processing, Definition and Fundamentals of Plastic Processing. Classification of Processing methods, Plastics processing techniques, Processability, Effect of Polymer properties on Processing, Process selection.
General description of extrusion processes, purpose, advantages, disadvantages. Equipment, Normal operation and control, Material and Product considerations, Types of extruder screw, Calculation of Extruder output, influence of screw dimensions on output, design of barrel and screw for commodity, heat sensitive and engineering polymers. Barrier Screws.
Individual extrusion systems, Dies, Sizing and Downstream equipment, Faults, Causes and Remedies for Film, Pipe, Lamination, Profiles, Cables, Sheet, Box Strapping, Twin-screw extrusion and Co Extrusion systems. Casting of films. Multilayer systems for Films and Pipe. Faults, causes & remedies.
General description of Compression and Transfer moulding, Materials, Processing characteristics, Preheating, Mold Heating, Outgassing, Postcuring, Insert Moulding, Various types of Moulds and machines, Shrinkage, Faults, Causes & Remedies. Design Analysis, Cost.
Calendaring: Introduction, calendar roll, calendar configuration and operations. Materials, Calendar Films, Fluxing and Feeding, Processing conditions, Design aspects, surface finishing, process controls, advantage of Calendaring over extrusion, Troubleshooting, Auxiliary equipment, Material Handling, Energy conservation, Parts Handling, Drying, Feeders & Blenders, Granulators.
After completion of the course student will be able to:
This subject is on page 9 of the original AKTU PDF.
