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Nylon Monofilament by Melt Spinning
Fishing line and strimmer line are single strands of nylon. Molten nylon is extruded through tiny holes, a spinneret, into strands, which are cooled, stretched to line up the polymer chains and give strength, and wound on spools. Hole size and stretching set the line's thickness and breaking strength. It is the 3D-printer filament line made much finer, and drawn.
Advanced
Continuous (industrial)
Instructions
1
1
Dry and melt
Dry and melt
Nylon pellets are dried and melted along the extruder's screw.
Materials for this step:
Nylon Pellets50 kgTools needed:
Pellet Dryer
Plastic Extruder
Pellet Hopper Feeder2
2
Spin
Spin
The melt is metered through a spinneret, each hole making one strand.
Tools needed:
Spinneret3
3
Quench and draw
Quench and draw
Strands are cooled in water, then stretched between rolls running at increasing speeds.
Materials for this step:
Water200 liters4
4
Wind and test
Wind and test
The line is wound on spools; its diameter and breaking strength are measured.
Tools needed:
Digital Caliper 6-InchTools Required
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