The invention belongs to the technical field of acoustic boards, and discloses an acoustic board for a metro. The acoustic board comprises a base material layer and acoustic holes, the base material layer of the acoustic board is an OSB (oriented structural board), an acoustic board surface is formed in one surface of the base material layer, an acoustic board bottom surface is formed in the other surface of the base material layer, a silencing groove is formed in the acoustic board surface, the acoustic holes distributed at intervals penetrate the bottom surface of the silencing groove, or the acoustic board surface is communicated with the acoustic board bottom surface, a veneering surface is arranged at the upper end of the acoustic board surface, a silencing bottom layer is arranged on the acoustic board bottom surface, and corresponding sides of the base material layer are provided with a connecting convex edge and a connecting groove. The OSB serves as a base material, a simple acoustic structure is added, and the acoustic board not only has fine sound absorbing effects, but also has high strength and dimensional stability.
Acoustic board for metro
2015-04-22
Patent
Electronic Resource
English
IPC: | B27D WORKING VENEER OR PLYWOOD , Verarbeiten von Furnier- oder Sperrholz / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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