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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
Jig
Manufacturing; Plastic injection molding
A tool for holding parts of an assembly during the manufacturing process.
Artificially balanced runner system
Manufacturing; Plastic injection molding
Balancing a runner system by adjusting the pressure drop of a long large diameter runner against a short small diameter runner. Since pressure drop over the small diameter runner will be much more ...
Bulk-molding compounds (BMC)
Manufacturing; Plastic injection molding
Bulk-molding compounds are used as a premix in composite manufacturing. A BMC consists of a mixture of resin, reinforcements, inert fillers, and other additives which form a puttylike preformed ...
Shrinkage
Manufacturing; Plastic injection molding
Contraction upon cooling of all or areas of the part. Shrinkage occurs less is disorientated material and more across chains of molecules than along their lengths. Lower pack area have lower areas of ...
Cooling channels
Manufacturing; Plastic injection molding
Channels located within the body of a mould through which a cooling medium is circulated to control the mould surface temperature.
Injection blow moulding
Manufacturing; Plastic injection molding
Blow moulding process by which the plastic parison to be blown is formed by injection molding.
Glass transition
Manufacturing; Plastic injection molding
Change in an amorphous polymer from viscous to hard and relatively brittle.
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