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MANUFACTURING TECHNIQUES - HDPE RECYCING BIN
|V. Ryan © 2009-2018|
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|Injection Blow Moulding - Box Learning Exercise|
|THE MANUFACTURE OF A PLASTIC DUST / REFUSE BIN|
moulding follows the same stages of manufacture as injection moulding.
HDPE (high density polyethylene) is ideal for this typeof manufacturing
technology (see diagram below). The HDPE granules / powder is placed into
the hopper. It drops down on to a rotating thread and travels along its
distance. During this process the granules / powder is heated and becomes
However, when it reaches the mould compressed air is also blown into the mould. This pushes the HDPE around the edges of the mould, forming a hollow shape, in this case the recycling bin.
|When the HDPE is cool it is removed from the mould and excess HDPE is trimmed away - leaving the bin.|
|INDUSTRIAL SCALE - INJECTION BLOW MOULDING|
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