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| Processing Guide: | PA 66 - Polyamide 66 |
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| Extruder: |
Single Screw Extruder Without vacuum, plain feeding section |
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| Screw Design: |
Barrier Screw or Polyolefin Screw with equal feed ,transition and metering section, 25-30 L/D Two mixing sections: dispersive-mixing spiral-shear element, rhomboid distributive-mixing section |
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| Compression Ratio: | 3-4:1 |
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| Cylinder Temperatures: |
260-290 C 500-554 F |
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| Melt Temperature: |
280-300 C 536-572 F |
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| Pre-Drying: | 3 hours at 80 C (176 F) (very important) |
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| Calibration: | |
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| Miscellaneous: |
process above 250 oC (482 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 160 C (320 F) |
