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Processing advice Durethan (Injection molding)

 
The following information applies when the product is processed by injection molding. If other processing methods, such as extrusion, are used, then the parameters can differ considerably from the figures given here.


Drying

Care must be taken to ensure that the pellets are processed in a sufficiently dry state.


Permitted residual moisture content0.12% 
Drying temperature80 °C 
Drying timeDry air dryer
2 to 20 hours (depending on starting moisture content)
Fresh air dryer
not suitable


Processing

The figures given are valid for standard grades without flame retardancy additives. The melt temperature for the easy-flow grades will generally be selected from the lower end of the range and the melt temperature for grades with poor flow from the upper end of the range.


 Durethan A (PA 66)Durethan B (PA 6)Durethan T (PA 6I)
 non-reinforcedreinforcednon-reinforcedreinforcednon-reinforced
Melt temperature275 - 295 °C280 - 300 °C260 - 280 °C270 - 290 °C270 - 290 °C
Mold temperature80 - 100 °C80 - 120 °C80 - 100 °C80 - 120 °C50 - 80 °C
Permitted residence time4 - 10 minutes
Maximum circumferential
velocity of screw
0.3 m/s *

* Higher velocities are possible by processing Easy Flow und Extreme Flow grades.


For specific processing data also consider the dedicated material data sheet.

More detailed information with regard to processing please find in our pocket booklet

_Processing data for the injection molder