Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-layer series micropore composite acoustic board and building decorative board structure
The invention provides a double-layer series micropore composite acoustic board which comprises a facing layer, a sound absorption material layer and a back layer which are sequentially stacked from outside to inside, and is specifically formed by compounding two metal plates with different apertures and the sound absorption material layer clamped between the two metal plates. The prepared composite acoustic board has a plurality of sound absorption peak values in a broadband of 500-3000Hz under the mutual cooperation of the flow resistance of the sound absorption material layer and a plurality of influence factors, the sound absorption coefficient NRC can reach 0.9 or above, the sound absorption effect is better, and the composite acoustic board is convenient to popularize and apply.
本发明提供了一种双层串联微孔复合吸声板，包括外向内依次叠设有饰面层、吸声材料层和背层，具体由两个孔径不同的金属板以及夹在两个金属板之间的吸声材料层复合形成，通过针对性调整两个金属板层孔径和穿孔率，吸声材料层的流阻率，多个影响因素的相互配合下，使得制备的复合吸声板在500‑3000Hz的宽频带内具有多个吸声峰值，且吸声系数NRC可达0.9以上，吸声效果较优，便于推广应用。
Double-layer series micropore composite acoustic board and building decorative board structure
The invention provides a double-layer series micropore composite acoustic board which comprises a facing layer, a sound absorption material layer and a back layer which are sequentially stacked from outside to inside, and is specifically formed by compounding two metal plates with different apertures and the sound absorption material layer clamped between the two metal plates. The prepared composite acoustic board has a plurality of sound absorption peak values in a broadband of 500-3000Hz under the mutual cooperation of the flow resistance of the sound absorption material layer and a plurality of influence factors, the sound absorption coefficient NRC can reach 0.9 or above, the sound absorption effect is better, and the composite acoustic board is convenient to popularize and apply.
本发明提供了一种双层串联微孔复合吸声板，包括外向内依次叠设有饰面层、吸声材料层和背层，具体由两个孔径不同的金属板以及夹在两个金属板之间的吸声材料层复合形成，通过针对性调整两个金属板层孔径和穿孔率，吸声材料层的流阻率，多个影响因素的相互配合下，使得制备的复合吸声板在500‑3000Hz的宽频带内具有多个吸声峰值，且吸声系数NRC可达0.9以上，吸声效果较优，便于推广应用。
Double-layer series micropore composite acoustic board and building decorative board structure
一种双层串联微孔复合吸声板及建筑装饰板结构
LIU DONGSHENG (Autor:in) / FENG YA (Autor:in) / FENG YAOHAN (Autor:in) / NAN YANLI (Autor:in) / XU JUNHUAI (Autor:in) / WANG XIAO (Autor:in) / ZHANG YANGANG (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden
/
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
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