9 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
impact strength
Manufacturing; Plastic injection molding
The ability of a material to withstand shock loading.
low temperature flexibility
Manufacturing; Plastic injection molding
The ability of a plastic to be bent without fracture at reduced temperatures.
reagent resistance
Manufacturing; Plastic injection molding
The ability of a plastic to withstand exposure to chemicals.
application
Manufacturing; Plastic injection molding
The act of applying or putting to use. What the molded plastic article will be in its final form.
melt index
Manufacturing; Plastic injection molding
The amount of a thermoplastic resin, measured in grams, which can be forced through a specified orifice within ten minutes when subjected to a specified force. (ASTM D-1238)
charge
Manufacturing; Plastic injection molding
The amount of material used to load a mold at one time or during one cycle.
water absorption
Manufacturing; Plastic injection molding
The amount of water absorbed by a plastic article when immersed in water for a stipulated period of time. All plastics will absorb moisture to some extent.
