Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOUND ABSORBER AND MANUFACTURING METHOD OF THE SAME
To provide a sound absorber with a large degree of freedom of sound absorption performance and to provide a manufacturing method of the sound absorber which can facilitate manufacture.SOLUTION: In a sound absorber 10 having a porous layer 11 formed of melamine foam, density of an upper layer part 12A and a lower layer part 12B differs from that of an intermediate layer part 13 when the porous layer 11 is divided into three portions of the upper layer part 12A, the intermediate layer part 13 and the lower layer part 12B in the order from a surface side in a thickness direction, and the density of the upper layer part 12A and the lower layer part 12B is 1.10 to 1.63 times as much as the density of the intermediate layer part 13. The sound absorber 10 is manufactured through a compression process for compressing the melamine foam in the thickness direction by heating it at a prescribed temperature.SELECTED DRAWING: Figure 1
【課題】 吸音性能の自由度が大きい吸音材を提供するとともに、製造の容易化を図ることができる吸音材の製造方法を提供する。【解決手段】 メラミンフォームからなる多孔質層１１を有する吸音材１０であって、多孔質層１１は、厚さ方向で表面側から順番に、上層部１２Ａ、中間層部１３及び下層部１２Ｂの３部分に分けると、上層部１２Ａ及び下層部１２Ｂと、中間層部１３とで密度が相違しており、上層部１２Ａ及び下層部１２Ｂの密度が、中間層部１３の密度の１．１０〜１．６３倍であり、この吸音材１０は、メラミンフォームを所定温度で加熱しながら厚さ方向へ圧縮する圧縮工程を経て製造される。【選択図】 図１
SOUND ABSORBER AND MANUFACTURING METHOD OF THE SAME
To provide a sound absorber with a large degree of freedom of sound absorption performance and to provide a manufacturing method of the sound absorber which can facilitate manufacture.SOLUTION: In a sound absorber 10 having a porous layer 11 formed of melamine foam, density of an upper layer part 12A and a lower layer part 12B differs from that of an intermediate layer part 13 when the porous layer 11 is divided into three portions of the upper layer part 12A, the intermediate layer part 13 and the lower layer part 12B in the order from a surface side in a thickness direction, and the density of the upper layer part 12A and the lower layer part 12B is 1.10 to 1.63 times as much as the density of the intermediate layer part 13. The sound absorber 10 is manufactured through a compression process for compressing the melamine foam in the thickness direction by heating it at a prescribed temperature.SELECTED DRAWING: Figure 1
【課題】 吸音性能の自由度が大きい吸音材を提供するとともに、製造の容易化を図ることができる吸音材の製造方法を提供する。【解決手段】 メラミンフォームからなる多孔質層１１を有する吸音材１０であって、多孔質層１１は、厚さ方向で表面側から順番に、上層部１２Ａ、中間層部１３及び下層部１２Ｂの３部分に分けると、上層部１２Ａ及び下層部１２Ｂと、中間層部１３とで密度が相違しており、上層部１２Ａ及び下層部１２Ｂの密度が、中間層部１３の密度の１．１０〜１．６３倍であり、この吸音材１０は、メラミンフォームを所定温度で加熱しながら厚さ方向へ圧縮する圧縮工程を経て製造される。【選択図】 図１
SOUND ABSORBER AND MANUFACTURING METHOD OF THE SAME
吸音材及びその製造方法
OGAWA MASANORI (Autor:in) / FUJII SHIN (Autor:in)
05.11.2020
Patent
Elektronische Ressource
Japanisch
IPC:
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES
/
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
/
B60R
Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen
,
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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