Classification of Polymer Processes

The major processes for thermoplastics can be categorized as follows extrusion, postdie processing, forming, and injection molding. We describe specific examples of some of the more common of these processes here. 

There are many types of extrusion die geometries including those for producing sheet and film, pipe and tubing, rods 

Polymer Processing Principles and Design, Second Edition. Donald G. Baird and Dimitris I. Collias. 2014 John Wiley Sons, Inc. Published 2014 by. John Wiley Sons, Inc. 

FIGURE 1.1 Typical single-screw extruder. (Reprinted by permission of the author from Middleman, 1977.) 

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