Key facts about rubber injection moulding

April 22, 2020 12:15 pm


Rubber is used in both its natural and synthetic forms for a variety of uses across many industries. Whether this is for creating tyres or machinery parts the processes in which the items are made are often very similar. One such process that has allowed for the mass production of rubber items of all shapes and sizes is that of rubber injection moulding. Synthetic rubber tends to be used for this process as it can be made in bulk, allowing for a large amount of items to be made from each mould that is created.

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Rubber Injection Moulding was developed in the 1960s from the process that was originally used to mould plastics. Rubber is heated and then placed under high pressure when it is injected into the cavities of the desired mould. In plastic moulding the plastic is cooled and placed under less pressure when it is moved into the moulds.

The rubber is created in large volumes before it is then placed into the injection nozzle. This nozzle will then transfer the rubber into the runner which then travels the rubber to the shaped moulds where it will then go through a process of curing before it is released from the moulds and moved into the next part of its manufacture.