Injection moulding

Plastic pellets are stored in the ____________ at the top of the machine.

• pellets
• heaters
• screw
• hopper

Small pieces (or ____________) of plastic are fed from the hopper into a cylinder.

• pellets
• heaters
• screws
• hopper

The pieces of plastic are transferred from the hopper into a ______________.

• cylinder
• nozzle
• screw
• hopper

The plastic is propelled along the cylinder by a rotating ______________.

• cylinder
• nozzle
• screw
• hopper

The ______________ around the cylinder raise the temperature of the plastic.

• cylinder
• nozzle
• heaters
• hopper

The soft, warm ______________ softens and flows more easily.

• cylinder
• nozzle
• heaters
• plastic

The soft, warm plastic is pushed towards the ______________ by the ram.

• ram
• nozzle
• cavity
• mould

The screw stops rotating. Then a ______________ in front of the screw moves straight forward.

• ram
• nozzle
• cavity
• mould

The soft plastic is injected into a shaped ____________ between two halves of a mould.

• ram
• nozzle
• cavity
• mould

Inside the cavity, the plastic is cooled by the ___________, and becomes hard.

• ram
• nozzle
• cavity
• mould