Injection Moulding Process
Injection moulding is a widely used process in manufacturing. It is a quick way of producing large numbers of identical components such as plastic trays and safety helmets.
Most thermoplastics can be injection moulded, including, Nylon (PA), Polycarbonate (PC), Polypropylene, (PP), Polystyrene (GPPS) and Acrylonitrile-Butadiene-Styrene (ABS).
The injection moulding machine consists of a heated barrel with a screw feed mechanism that forces molten polymer into a split mould.
The screw melts the polymer as it turns and rams it into the mould under very great pressure.
After the plastic component in the mould has cooled and solidified sufficiently, the mould is opened and the component is ejected.
Learn about Plastics
We use animations and supporting technology notes to describe plastics and plastics processes.
Animations illustrate plastics processes in probably the most clear way possible, making plastics processes easy to understand, easy to learn and easy to remember.
Our plastics technology notes and animations describe all the major processes including:
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