Dt

Question 1

Plastic Processes: Injection
Moulding

Answer 1

Involved heating plastic granules to their melting point and then injecting them at high pressure through a nozzle into a mould

Question 2

Plastic Processes: Blow moulding

Answer 2

Blow moulding is used to shape plastics, mainly for making bottles, plastic buckets and similar shapes.

Question 3

Plastic Processes:
Compression Moulding

Answer 3

Involved placing plastic thermosetting powder or granules into a female mould and adding a plasticiser. The mould is then closed under pressure.

Question 4

Plastic Processes:
Extrusion

Answer 4

Extrusion involves shaping products by squeezing hot plastic through a special mould called a die.