Moulding Types

Question 1

Vacuum forming process

Answer 1

A mold is made in the shape that the plastic will form around, place mold in vacuum former, position heater above the plastic, move shelf towards the plastic, switch on, remove the sheet

Question 2

Blow moulding process

Answer 2

Heated plastic is extruded into parison, mould closes parison is gripped, air is blown into parison which inflates, parison fills moul, proctuct is trimmed and removed

Question 3

Blister packaging process

Answer 3

Heat the plastic, thermoforming it into blister cavities, load the blister with the product, place lidding material over the blister, heat seal the package.

Question 4

Injection moulding process

Answer 4

The mould closes, heated plastic is injected into the mould, once its filled the part is allowed to cool until hard, the screw then doses the plastic for the next part, the mold opens and part is dropped down.

Question 5

Rotational moulding process

Answer 5

a heated hollow mold is filled with the exact mix of polymer power or resin, It is then slowly rotated (usually around two perpendicular axes), causing the softened material to disperse and stick to the walls of the mold. In order to maintain even thickness throughout the part, the mold continues to rotate at all times during the heating phase and to avoid sagging or deformation also during the cooling phase. Then take it out

Question 6

Vacuum forming, what is it used on?

Answer 6

Food packaging, toy packaging

Question 7

Blow moulding, what is it used on?

Answer 7

Bottles, jars and other containers

Question 8

Blister packaging, what is it used on?

Answer 8

Pills, batteries

Question 9

Injection moulding, what is it used on?

Answer 9

Automotive parts, electronic components

Question 10

Rotational moulding, what is it used on?

Answer 10

One piece hollow parts and double walled open containers such as Tanks, kayaks and coolers