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Processing Guide:
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PE-HD - High-density polyethylene
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Extruder:
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Single Screw Extruder with vacuum, grooved feeding section
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Screw Design:
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Barrier Screw, 25-30 L/D
Two mixing sections: dispersive-mixing spiral-shear element, rhomboid distributive-mixing section
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Compression Ratio:
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3:1
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Cylinder Temperatures:
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: 180-205 C 356-401 F
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Melt Temperature:
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180-205 C 356-401 F
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Pre-Drying:
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No, 3 hours at 105-110 C (221-230 F) for regrind
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Calibration:
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Miscellaneous:
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bimodal PE-HD needs motor with 10-15% higher torque and has higher melt pressure/melt temperature Larger screw diameter : continuously two channels (improved conveying in feeding section)
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