calculation time cycle injection molding (plastic)

[Andrea Martinelli]

Good evening!
how to calculate as real as possible a cycle time of an article?
are many factors to consider:
-material
- piece thicknesses
-movements of the mould (radial, etc)
what kind of evaluations do to make an estimate of cycle time?

 

[Fabietto]

hi gorea, here you can not answer in words "poor", as for the specific pressure. .
Here opens a world. .
you place pictures, just to have idea how the cycle time is composed.

Lets lose the accuracy of the % indicated, it is only to give idea of the phases that make up a cycle and the relationship between them.
from how you can see the main part of the cycle time is given by cooling time.
cooling time is determined by:
- material
- thickness and geometry of the detail
- capacity of the heat subtract mold (mould material, conformation air conditioning circuit).
- aesthetic - mechanical - dimensional characteristics that you want to achieve, which condition process parameters most connected to cooling time (injection temperature, air conditioning temperature).

Hi.

 

[Andrea Martinelli]

perfect, thank you very much for the super answers!