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Basics of Polymers by Muralisrinivasan Subramanian

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CHAPTER 6

Injection Molding

Injection molding is one of the important industrial fabrication techniques for polymeric materials to produce thin products. It produces products with complex three-dimensional polymeric parts. Injection molding of thermoplastics involves injecting molten resin into a mold at high pressure and ejecting the cooled part. A better understanding of the friction conditions during the molding process can lead to improved injection mold and part designs [1].

Therefore, injection molding is a process with [2]

     •  high-pressure squeezing of complex and compressible hot melt polymer fluid,

     •  hot melt that flows through a very small gate into a cold cavity mold with high velocity,

     •  end product having an apparent ...

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