A process for continuously producing two-faced self-supporting sandwich panels having an interposed layer of insulating material and provided with continuous substantially rigid side joints, and panels obtained

摘要

@ A process for continuously producing sandwich panels rimmed along the longitudinal edges, wherein first and second bands (10, 12) of profiled sheet or plate are continuously advanced, at same speed, said bands being designed to be the opposite major faces or sides of a continuous band (30) of produced panel, said bands (10, 12) being approached to each other as they advance to a predetermined distance from each other and then maintaining said predetermined distance from each other; between the two approaching bands a chemical product is introduced and then expanded and the bands are advanced within a movable press (20) to cause the panel band to have a controlled thickness; the process further comprises the steps of simultaneously advancing at a same speed as said first and second bands, side joint strips (14, 16) converging to the longitudinal edges of said first and second bands; and respectively engaging said side strips with said first and/or second bands on either sides thereof.