Functional Airduct for EMU

Material Advantages of Yudelboard   Yudelboard is rigid PIR (Polyisocyanurate) steam foamed foam board, covered with 80μm embossed aluminum foil on both sides.   PIR features stable hexagonal molecular structure compared with chain-structured polyurethane.   Integral one-step foaming process: Raw materials foam together with double-sided aluminum foil, superior to conventional glued foam boards in peel strength, service life and environmental performance. 80μm aluminum foil avoids particulate falling off caused by aging to prevent air pollution. Superior tensile & bending performance than common 30~40μm aluminum foil, satisfying 30-year vehicle service life with nearly 20 years of field application in railway industry. Five Major Advantages of Yudelboard Airduct Lightweight: 10mm duct reduces about 50% weight vs aluminum duct with identical size. Excellent Sound Insulation: Embossed aluminum foil blocks and disperses noise, sound insulation up to 14dB. Anti-condensation:…

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