Extrusion Processing Guide: PA 6 – Polyamide 6

Processing Guide: PA 6 – Polyamide 6  Extruder: Single Screw Extruder Without vacuum, plain feeding section or pressure-relieved grooved feeding section (by increased screw pitch and channel depth)  Screw Design: Barrier Screw or Polyolefin Screw with equal feed ,transition and metering section, 25-30 L/D  Compression Ratio: 3-4:1  Cylinder Temperatures: 230-260°C 446-500°F  Melt Temperature: 230-290°C 446-554°F  Pre-Drying: 3 hours at 80°C (176°F) (very important)  Calibration:    Miscellaneous: process above 220°C (428°F) to avoid freeze-off if bubbles come then temperature too high increased output/reduced wear by preheating of material 75°C (167°F) or by heating of feeding section at 150°C (302°F)

Note: This is meant as a general guide. Please consult your material and machinery representative.

 

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