Page 123 - Module DMV20173

6.0 POLYMER PROCESSING

EXERCISE 6.3

Using the 'Equipment and Processes', answer the following injection and blow moulding

questions:

1. Complete the diagrams by adding missing words and parts.

A. __________ of plastic powder (polystyrene, nylon, _____________ and polythene)
are poured or fed into a hopper which stores it until it is needed.

B. The ________ is turned on. This warms up and melts the granular plastic. A
________ turns a screw thread which pushes the granules along the heater section
causing it to change to a________.

C. The liquid plastic is forced into a mould by ___________.

BPLK 155 DME 1083