VORRICHTUNG ZUR VERDICHTUNG VON POLYSTYRENSCHAUM

摘要

A device for redensifying articles made of an expanded thermoplastic material, particularly polystyrene, including a conveying system comprising a reflective metal surface supporting the moving articles and passing successively through a heating chamber (2) with an infrared heating assembly (5) facing said metal surface, and a post-heating chamber (23) having no infrared heating assembly but comprising a reflector (24) arranged above and facing said metal surface. The conveying system is preferably a conveyor belt (4) consisting of a thin continuous reflective metal strip, e.g. a thin tin-coated mild steel sheet, which is flexible enough to be looped, stretched around a number of drums and rotated.