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6.0 POLYMER PROCESSING
D. __________ air is ‘blown’ into the mould. This forces the liquid plastic against the
sides of the ________. In this example it forms the shape of a plastic __________.
E. The plastic is allowed to _____ and the mould is ‘_____’ and the plastic bottle
removed. The entire process is _________ hundreds or thousands of times.
6.4 COMPRESSION MOLDING
Figure 6.9 (a) Compression mould (b) Sequence of compression molding process.
Compression molding started when pressure is applied by a hydraulic press to the two halves
of the mold which puts the material and the mold under a compressive load (Figure 6.9).
1. Compression molding started when pressure is applied by a hydraulic press to the two
halves of the mold which puts the material and the mold under a compressive load
(Figure 6.9).
BPLK 156 DME 1083
