Energy & cycle time savings chart
The addition of a very small amount of water during Streamoulding reduces the viscosity of the polymelt and as a result reduces the cycle time as well as lowering the load on the moulding machine during injection.
This generates energy savings in addition to material savings from weight reductions in the moulded parts.
The table below shows how the additional savings are related to various weight reductions which can be set and controlled through the Streamoulding process.
In this case the test piece was a plastic kitchen utensil handle weighing 25 gm in solid form. The material used was a Polypropylene (Moplen HP500 N).
|Shot weight (gms)||25||23.7||22.5||17.5|
|Cycle time (secs)||110||86||86||86|
|Parts / hr||33||42||42||42|
|KW / part||0.31||0.19||0.16||0.15|
|KW saving / part||N/A||0.12||0.15||0.16|
|% energy saving||N/A||38%||48%||51%|
|% cycle time saving||N/A||21%||21%||21%|