industrial level polymer shape production is conventional when we use injection molding. it will help you understand, how injection molding works and what may cause problems in it.
2. mold cavity melt
nozzle
plastic pellets
hopper
screw
heating
coils
cold side hot side
parting line
plates
Injection Mold
Major
parts of
the
injection
molding
machine
barrel
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3. Process
Plastic pellets fill the hopper…
…to form melt in the nozzle…
…fall into
the barrel…
…where
heat and
pressure
are
applied…
…which is pushed
into the mold.
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4. Process
After cooling, the mold opens
and the finished part is removed.
The sprue is then removed
from the final part.
It is reground
and placed
back into the
hopper.
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5. The diameter of the screw inside the barrel gradually increases to
generate more pressure and heat helping to melt the material.
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7. Disadvantages
Complex geometry can render parts
impossible or extremely expensive.
Unless mass producing, the cost of the mold can
outweigh the benefits of injection molding.
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