Cards (2)

    • What are some examples of blow moulded products
      Bottles
      Hollow products
    • How is blow moulding carried out
      1.Polymer fed into hopper
      2.Archimedean screw pulls polymer through heated section
      3.Polymer melts
      4.Molten polymer extruded as a tube(parison)
      5.Mould sides close around parison, air injected, forces polymer to the sides
      6.Allowed to cool for some seconds, mould opens, bottle ejected