Plastics are the cheapest raw materials available in the market. Plastic gets in to proper shape and size by the process of Injection Moulding. This moulding is the process of manufacturing of plastic components. Plastic is an economical material which is used in various applications. Plastic Injection moulding is a process of forcing molten plastic by the application of pressure.

Plastic in the form of powder or liquid is fed through hopper into the barrel which is heated up to certain temperatures where it is mixed and then forced through a nozzle with the help of a plunger to the mould cavity where it hardens by cooling and sets to the configuration of the mould. The plunger is used to force the heated raw material through the nozzle. The plunger which is usually used is a ram or a screw-type. The chair mould suppliers is designed and made from steel or aluminium, and then precision machined forming the desired parts. Plastic Injection moulding is used to manufacture various parts, varying from small components to whole body of a vehicle. Manufacturing a mould is very expensive, so a mould is only used for mass productions. Moulding is the process of shaping a raw-material into the desired shape, by applying pressure. A mould is a hollow block which is filled with a liquid like plastic, glass or a rubber. Injection moulding is one of the types of moulding which involves injecting a raw material into a pattern and applying certain factors like heat and pressure.

THE CYCLE

The sequence of events through which a raw material is converted into a finished part is known as the injection mould cycle. It includes the supply of granules being fed into a hopper to a heated chamber, where the granules are melted into the form of a liquid. Then a plunger is used to force the liquid through a nozzle to the mould. These processes are repeated again to form a cycle for mass production of products.

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