SCHALLISOLIERENDES VERBUNDTEIL UND VERFAHREN ZU DESSEN HERSTELLUNG

摘要

A method of producing a sound-insulating composite component for motor vehicles, in which the composite component includes a heavy layer and a sound-attenuation layer connected with the heavy layer and is made of porous and/or textile material places a certain volume of a heavy-layer material as a plasticized compound into an open cavity of a press including lower and upper dies; closes the press to extrusion-press the plasticized compound into the form of the heavy layer defined by the lower and upper dies; opens the press; arranges the sound attenuation layer in the form of a web, a blank or an injection molded part on the heavy layer; and partially welds together the heavy layer and the sound attenuation layer by closing the press or a further press and by activating several welding elements delimited in area and integrated in the press or in the further press.