Processes - Plastics Flashcards
1
Q
Name all 4 plastic processes
A
Injection moulding
Vacuum forming
Blow moulding
Compression moulding (thermosetting plastics)
2
Q
Advantages and an example of injection moulding
A
Highly accurate
Very cheap per part
Fast
Complex shapes
Example - mobile phone case
3
Q
Advantages and disadvantages of blow moulding with an example
A
Adv Produces hollow parts Cheap Accurate Fast
Dis
Only small products
Split lines visible
Only small products
Example- plastic bottles
4
Q
Advantages and An example of vacuum forming
A
Low cost machinery Small scale production Accurate Cheap Fast
Example: plastic sandwich boxes
5
Q
Advantages and disadvantages of compression moulding with an example
A
Adv Highly accurate Fast Good surface texture Complex shapes
Dis
High set up costs
Flashing to be removed
Example- electrical plugs
