Process for shaping thermoplastic articles

摘要

A discrete thermoplastic composition is formed into a shaped article in a rapid stamping process. The composition is placed on and preheated with a rigid metal plate which has been preshaped to fit the contour of one of the dies of the stamping press. The heated composition and metal plate are then transferred to the stamping press where the composition is stamped and cooled into a three-dimensional shaped object. The surface of the metal plate contacting the composition has a special finish so that desired surface effects can be produced on the stamped article.