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Category: Rotational Molding

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Rotational Molding Review - Engineers Edge






Description: Rotational molding, also referred to as rotomolding, rotocasting or spin casting, is a plastic molding process for manufacturing rigid hollow shell parts

A heated hollow mold or dies, is filled with a known amount plastic resin powder or shot, it is then heated to a known temperature and slowly rotated (usually around two perpendicular axes) causing the softened plastics, to disperse and stick to the walls of the mold. In order to maintain even thickness throughout the part, the mold continues to rotate at all times during the heating phase and to avoid sagging or deformation also during the cooling phase.
 

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