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
reaction injection molding (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 mold at low pressure.
vacuum forming
Manufacturing; Plastic injection molding
A process whereby a heated plastic sheet is drawn against a mold surface by evacuating the air between it and the mold.
core
Manufacturing; Plastic injection molding
A protrusion, or set of matching protrusions, in a plastics forming mold which forms the inner surfaces of the molded articles.
undercut
Manufacturing; Plastic injection molding
A protuberance or indentation that impedes withdrawal from a two-piece rigid mold.
boss
Manufacturing; Plastic injection molding
A raised feature of a molded part designed to add strength, facilitate alignment during assembly or for attachment to another part.
skin
Manufacturing; Plastic injection molding
a relatively dense layer at the surface of the material.
