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Injection moulding process step by step


The injection moulding process is a highly efficient and widely used method for manufacturing plastic products. It consists of several steps. First, the plastic material, usually in the form of pellets, is fed into a hopper. The pellets are then conveyed to the injection unit where they are heated and melted.


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Once the plastic is in a molten state, it is injected into a mold cavity under high pressure. The mold is designed to give the plastic product its desired shape and size. The injection pressure and speed are carefully controlled to ensure proper filling of the mold.

After the plastic has been injected, it is cooled and solidifies inside the mold. This cooling process is crucial as it determines the quality and properties of the final product. Cooling can be achieved through various methods such as water cooling or air cooling.

Once the plastic has solidified, the mold is opened and the finished product is ejected. The cycle then repeats for the next product. Quality control checks are performed at various stages of the process to ensure that the products meet the required specifications. Any defects or imperfections are identified and corrected to maintain high quality standards.

In conclusion, the injection moulding process is a complex yet highly efficient method for manufacturing plastic products. Each step of the process requires precision and careful control to ensure the production of high-quality products.

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