COMPOSITE COMPONENTS OF SANDWICH CONSTRUCTION

摘要

A composite sandwich formed by enclosing a central resilient layer of a soft compressible material between two plate-shaped parts of foamable synthetic material and inserting the assembly into a cavity formed from two shells of prefabricated sheet metal. The resultant composite is subjected to a heat treatment for about 10 minutes at about 200 DEG C. so that the foamable material expands to fill the cavity.