In-situ foam core structural articles and system for forming

摘要: An elongated structural article, having a continuous profile extrusion with spaced apart layers defining portion of cavity filed filled thermoplastic pre-expanded beads expanded steam in-situ causing the to securely bond together and extrusion. The article is cut length forming ends an exposed foam core. A system for manufacturing also disclosed die axially wall surrounding cavity, tubular shaping mold located downstream sized support as it passes there through. bead dispenser oriented introducing into while within fixture tube introduction beads. Control valves regulate flow cavity.