EXTRUSION

Which plastic manufacturing process involves forcing melted plastic through a shaped opening in a "die" to create a continuous piece which is then often cut to length.

• Injection Molding

• Extrusion

• Blow Molding

• 3D Printing

Can we make a plastic cap by extrusion?

• Yes

• No

Which formation thecnique would you use for a STRAW

• Extrusion

• Injection

• Blow moulding

• Compression moulding

• Vacuum forming

Which of the following is true about extrusion

• Good surface finish

• High dimensional accuracy

• Cheap

• Can form complex shapes such as tubes

Which plastic process continuously compresses melted plastic through an opening (called a die) to create a long plastic piece that can then be cut to length?

• Extrusion

• Injection Molding

• Blow Molding

• Blown Film

Which plastic process blows air into a melted plastic tube ans is used to make plastic bottles?

• Extrusion

• Injection Molding

• Blow Molding

• Blown Film

Which plastic process blows air into a melted plastic tube and is used to make plastic bags?

• Extrusion

• Injection Molding

• Blow Molding

• Blown Film

Match the parts of the talk to A, B, C  or D with the diagram.

• The screw rotates.
• The polymer pellets are transferred from the hopper to the cylinder.
• The plastic bottle is ejected.
• The molten polymer is extruded into the mould.

Match the parts of the talk to A, B, C  or D with the diagram.

• The polymer pellets are heated and melted.
  The warm, soft molten polymer moves along the cylinder.
• The two halves of the mould are closed with the molten polymer inside.
• The polymer pellets are transferred from the hopper to the cylinder.
• The plastic bottle is ejected.

Match the parts of the talk to A, B, C  or D with the diagram.

• The molten polymer is inflated by the compressed air.
• Compressed air is blown inside the molten polymer.
• The plastic bottle shape is cooled
• The cold polymer pellets are moved along the cylinder.