4 Terms
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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.
Industry: Manufacturing
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Plastic injection molding
Sink mark
Manufacturing; Plastic injection molding
An indentation on the surface of the part as a result of significant local change in wall section. The mark will occur in the thicker area.
Flash
Manufacturing; Plastic injection molding
Any excess material that is formed with and attached to the component along a seam or mould parting line.
Discoloration
Manufacturing; Plastic injection molding
Any change from the designated colour of the material or component.
Peeling
Manufacturing; Plastic injection molding
An open blister in the platic parts which is a manufacturing defect.
Durometer
Manufacturing; Plastic injection molding
An instrument used for measuring the hardness of a material.
Pit
Manufacturing; Plastic injection molding
An imperfection, a small crater in the surface of the plastic.
