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Plastic injection molding

Plastic injection molding is the primary process for manufacturing plastic parts used in consumer goods such as computer keyboards, monitors, bottle caps, cups and solid plastic articles. Plastic is known to be a very versatile and economical material that is used in many applications. Injection molding involves taking plastic in the form of pellets or granules and heating this material until a melt is obtained. Then the melt is forced into a split-die chamber/mold where it is allowed to "cool" into the desired shape. The mold is then opened and the part is ejected, at which time the cycle is repeated.

Contributors in Plastic injection molding

Plastic injection molding

Drag marks

Manufacturing; Plastic injection molding

A form of deep scratch or scratches on the surface of the component usually caused by the ejection of the part.

Glass fibres

Manufacturing; Plastic injection molding

A family of reinforcing materials for reinforced plastics based on single filaments of glass.

Thermoset

Manufacturing; Plastic injection molding

A polymer that doesn't melt when heated. Thermoset polymers "set" into a given shape when first made and afterwards do not flow or melt, but rather decompose upon heating. They are often highly ...

Reaction injection moulding (RIM)

Manufacturing; Plastic injection molding

A process that involves the high pressure impingement mixing of two or more reactive liquid components and injecting into a closed mould at low pressure.

Transfer moulding

Manufacturing; Plastic injection molding

A process of forming articles by fusing a plastic material in a chamber then forcing the whole mass into a hot mould to solidify.

Over moulding

Manufacturing; Plastic injection molding

A process in which a mould cavity is first partially filled with one plastic and then a second shot is injected to encapsulate the first shot.

Stripper plate

Manufacturing; Plastic injection molding

A plate that strips a moulded piece from core pins or force plugs. The stripper plate is set into operation by the opening of the mold.

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