| 摘要 |
<p>Fabric laminate for soundproofing comprises coarse, intermediate and fine layers welded together, each comprising metal wires that are woven together or entangled together in the manner of a nonwoven. Independent claims are also included for: (1) acoustic insulation unit comprising a laminate as above; (2) producing an acoustic insulation unit by positioning a coarse fabric layer between fine and intermediate fabric layers in the gap between two electrodes, passing a current between the electrodes to bond the layers together by resistance welding, and bending the resulting laminate to the required shape so that the fine layer has the smallest radius of curvature.</p> |
