Wednesday, February 20, 2013

Plastic processing



Shaping of plastic is done by different process as follows.  

  •        Extrusion
  •        Compression moulding
  •        Transfer moulding
  •        Injection moulding
  •        Blow moulding
o  Extrusion blow moulding
o  Extrusion stretch blow moulding
o  Injection blow moulding
o  Injection stretch blow moulding
  •        Roto moulding/rotational moulding
  •        Forming Techniques (Thermoforming)
  •        Calendaring
  •        Slush moulding

About 75% of plastic products are made up by extrusion process, about 21% of products are made by compression molding and blow molding is used for produce 2-3% of plastic products in the world. Other processes are used to manufacture remaining percentage of plastic products.


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