Sound absorption panel

作者: Zenzo Yamaguchi , Akio Sugimoto , Ichiro Yamagiwa

DOI:

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摘要: Sound absorbency is imparted on a panel, which has increased strength and rigidity, by laminating foam resin that not naturally permeable does absorb sound, surface sheets are do sound. A sound absorption panel (1), obtained (20) comprising closed cells aluminum alloy (10) (metal sheets), plurality of holes (30) formed therein, penetrate the in thickness direction. The forcing needle (40) (hole-forming means) through (10).

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