Gas Injection Moulding

  • In this, N2 gas at low pressure is utilized to apply uniform pressure on molded plastic parts. N2 gas can come in contact with melts at high temperature without difficulty.
  • The principle of this process is that nitrogen gas is injected, during the moulding cycle, either through the sprue or directly into the mould tool. At a controlled high pressure this has the benefit of overcoming sink marks or introducing a cavity without the requirement of a core.
  • Benefits of gas assisted injection moulding: reduced material requirements; reduced cycle times; reduced wear on moulds; improved component quality.

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