Melt Processing Melt processing is the most important, most economical way of shaping plastics. It can be used for those thermoplastics with melting points and viscosity low enough not to subject die materials to excessive temperatures and stresses.
(a) Melt Processing of Thermoplastics: The raw material to be processed is usually supplied in the form of regular shape and even-size granules, because this makes quantity metering easier and quicker and leads to more uniform and predictable heating.