20 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
Packing
Manufacturing; Plastic injection molding
The filling of the mould cavity or cavities as full as possible without causing undue stress on the moulds or causing flash to appear on the finished parts. Over- or under-packing results in less ...
Izod, notched, LT
Manufacturing; Plastic injection molding
The energy required to break specimens in which there is a v-notch to create an initial stress point but measured at low temperature (minus 40°C).
Notch sensitivity
Manufacturing; Plastic injection molding
The extent to which the sensitivity of a material to fracture is increased by the presence of a surface notch or sudden change in section.
Izod, notched, RT
Manufacturing; Plastic injection molding
The energy required to break specimens in which there is a v-notched to create an initial stress point.
Drooling
Manufacturing; Plastic injection molding
The extrudation or leakage of molten resin from nozzle or nozzle sprue bushing area while filling or shooting the mold.
Modulus of resilience
Manufacturing; Plastic injection molding
The energy that can be absorbed per unit volume without creating a permanent distortion.
Stress
Manufacturing; Plastic injection molding
The force producing or tending to produce deformation in a body measured by the force applied per unit area.
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