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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
Injection moulding pressure
Manufacturing; Plastic injection molding
The pressure applied to the cross-sectional area of the moulding cylinder.
Extrusion
Manufacturing; Plastic injection molding
The process of forming continuous shapes by forcing a molten plastic material through a die.
Clamping pressure
Manufacturing; Plastic injection molding
The pressure applied to the mould to keep it closed during the moulding cycle.
Weld line
Manufacturing; Plastic injection molding
Where melted material flows together during moulding to form a visible line or lines on a finished part that may cause weakening or breaking of the component.
Knit lines
Manufacturing; Plastic injection molding
Where melted material flows together to form a line or lines that may cause weakening or breaking of the component.
Delamination
Manufacturing; Plastic injection molding
When the surface of a finished part separates. Strata or fish-scale-type appearance may be visible where the layers may be separated.
Raised ejector site
Manufacturing; Plastic injection molding
Where the ejector site is either heightened or raised above the surface of the component.
