What is the Process of Plastic Injection Moulding

The plastic injection moulding process produces large numbers of parts of high quality with great accuracy, very quickly. first to reach this requirement we need find plastic mold companies to make the plastic mold according to part design or part samples, this is first part of it to make plastic molding part by plastic moulding process, otherwise we can talk nothing about plastic molding process.

Nowadays

Plastic material in the form of granules is melted until soft enough to be injected under pressure to fill a mould.  The result is that the shape is exactly copied.  Once the plastic moulding has cooled sufficiently to harden the mould opens releasing the part.  The whole injection moulding process then repeats.

CLAMPING – the moving and fixed platens of the injection moulding machine (see next section) holds the plastic mold tool together under pressure.

Inject Molten Plastic

INJECTION – the molten plastic that has been melted from pellet form in the barrel of the moulding machine (see next section) is injected under pressure into the mould.

DWELLING – after the molten plastic has been injected into the mould pressure is applied to ensure all cavities are filled.

COOLING – the plastic parts are then allowed to solidify in the mould.

Open Mould and Eject Part

OPENING – the moving platen moves away from the fixed platen (see next section) separating the mould tool.

EJECTION – rods, a plate or air blast then aids ejection of the completed plastic moulding from the injection mould tool.

The length of time from closing the plastic molds to ejecting the finished plastic moulding is the cycle.

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