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7 Cards in this Set
- Front
- Back
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What is Extrusion?
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process where a solid plastic (pellet) is converted into a uniform melt by using heat, pressure and shear.
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What are the 7 major parts of an extruder?
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barrel, hopper, screws, feed section, compression section, metering section, die
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Describe the barrel, hopper, and screw on an extruder?
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barrel - Holds the screw
Hopper - portion to feed the plastics into extruder screw - part housed in barrel and drive plastic through die |
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Describe die of an extruder.
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A piece of metal at the end of the barrel that will shape the polymer to your desire.
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What is cast film extrusion?
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A plastic material that is being fed through a rectangular shaped die and being cooled by chill rolls.
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What is blown film extrusion?
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Creating tubular filming using angular die and air pressure within the tube.
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What is to purpose of co-extrusion?
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Its an cheaper, alternative process to lamination
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