Injection molding refers to the process where heat and
pressure is imposed on a plastic material to melt it(plasticiation)
and make it liquid. Under the high pressure(injection
pressure), the material enters the closed metallic pattern
at such a high speed and then is congelated enough to
make an intended shape.
Usually they use a particle-shape chip by adding pigments
or stabilizers to the thermoplastic resin.
When the flange goes back, the chip is automatically sent
into the cylinder from the hopper. Then it is heated and
turns liquid. Going through the route where the molding
materials travel in the screw part, it is equally heated.
After it enters the closed metallic pattern from the nozzle,
the cooling water is circulated around the pattern to
keep the temperature at a certain degree.
When the process in the pattern is completed, the molding
is cooled down and congelated. Then the moving plate moves
back to open the metallic pattern. Thus the molding comes
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