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What is rubber compression molding?
Rubber compression molding forms uncured rubber into a desired shape. First, the elastomer is pre-heated until pliable and then put into an open mold cavity. Closing the mold forces the rubber to fill the cavity, where the elastomer is keep under heat and pressure until cured.
The advantages of rubber compression molding include:
Lower tooling costs
Small production runs
Suitable for larger, heavier parts
Rubber Compression Molding Steps:
Uncured rubber is preformed to control weight, shape and specification
Rubber preform is placed into the mold cavit
Rubber molded is closed compressing the rubber to fill the mold's cavities
Mold remains closed under pressure and temperature to reach optimal cure
Compressed rubber parts are removed from the mold and the process is ready to begin again
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