Plastic injection moulding
Plastic injection moulding is a plastic processing technique in which thermoplastic polymers are melted and injected at high pressure into a closed mould, designed to reproduce the object down to the smallest detail.
Metalstampi has been involved in plastic injection moulding for over sixty years.
What is plastic injection moulding?
Injection moulding is a process that allows a wide variety of plastic articles, which can be used in different sectors, to be obtained in a short time. The high level of automation of the moulding process combined with Metalstampi’s many years of experience allows us to produce parts even of reduced dimensions and complex geometries, all fully customisable and without quantitative constraints on production.
How plastic injection moulding is performed
The plastic injection moulding process follows several production steps:
Preparation of the Plastic Material
The process starts with the selection and preparation of the appropriate plastic material.
Feeding the Plastic Material
Plastic granules are loaded into a tank on the injection moulding machine.
Melting the Plastic Material
The plastic material is heated inside a cylinder in the machine.
Injection of the Plastic Material
Once the plastic material is melted and ready to be moulded, it is injected into the mould cavity.
Cooling and Solidification
After injection, the plastic material inside the mould is left to cool and solidify.
Mould Opening and Extraction
Once the plastic material has cooled and solidified, the mould opens and the finished product is extracted.
Cycle Repetition
After extraction of the finished product, the cycle can be repeated to produce further components.
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Why choose injection moulding?
All the advantages
Here are some of the main reasons why many companies choose this process:
High production efficiency
Accuracy and repeatability of raw material
Reduction of material waste
Customisation and flexibility of parts produced
Reduction of assembly costs
High quality
Fast production times
Areas of use for plastic injection moulding
Plastic injection moulding is widely used in a wide range of industries thanks to its versatility and efficient production capabilities:
These are just some of the sectors in which plastic injection moulding is widely used
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