Compression Molding

Compression Molding

A method of molding in which the molding material is first placed in a heated mold cavity. With a top and bottom plate, the mold is aligned with pins and closed with a top force or plug member.

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Pressure is applied to force the material between the two plates into contact with all mold areas, and heat and pressure are maintained until the molding material has cured. The process uses thermosetting resins in a partially cured stage,

Compression Molding

either in the form of granules, putty-like masses, or preforms. Compression molding is a high-volume, high-pressure method suitable for molding complex parts. Advanced composite thermoplastics can also be compression molded with unidirectional tapes, woven fabrics, randomly orientated fiber mat or chopped strand. The advantage of compression molding is its ability to mold large, fairly intricate parts.