Research Article

Fatigue Fracture Properties and Morphology of Polyoxymethylene (POM) Plates Produced under Moderate Processing Conditions

Table 3

Processing parameters used for injection molding (plate dimension: 150 × 150 × 5 mm).

DelrinTenac

Screw diameter (mm)40
Metering volume (cm3)160
Back pressure (bar)40
Melt temperature (°C)215210
Injection flow rate (cm3/s)10
Max. injection pressure (bar)700630/700 (90°C mold temperature only)
Mold temperature (°C)60/90/110
Switch-over volume (cm3)27
Holding pressure (bar)600
Holding pressure time (s)12
Remaining cushion (cm3)1211
Residual cooling time (s)50
Total cycle time (s)82.880.8