In: Chemistry
Briefly explain how a compression molding press works and name the major components.
Compression Molding is a process of molding in which the moulding material, is usually preheated in a open mould cavity. Compression molding is a high-volume, high-pressure process. The process employs thermosetting resins in a partially cured stage, either in the form of granules, putty-like masses, or preforms. IT is one of the oldest manufacturing techniques used for rubber molding.
It is suitable for molding complex, high-strength fiberglass reinforcements. Advanced composite thermoplastics can also be compression molded with unidirectional tapes, woven fabrics, randomly oriented fiber mat or chopped strand. The advantage of compression molding is its ability to mold large, fairly intricate parts. It is also a cost effective process.
There are four main steps for composite compression molding process: