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研究了包沫铝消音性能及其随孔隙结构及成形方法的变化情况。结果表明：泡沫铝在０．１２５～１６ｋＨｚ范围内均具有较好的消音作用；其消音效果受其孔隙结构和成形方法所影响，孔径为１．６～３．２ｍｍ和０．６３～０．８ｍｍ试样的消音效果最佳，孔隙率大的消音效果更优，成形体法泡沫铝的消音性能明显优于散粒子法泡沫铝。
The silencing performance of aluminum foamed aluminum and its variation with pore structure and forming method were studied. The results show that aluminum foam has better sound-deadening effect in the range of 0.125 ~ 16kHz, and its sound-deadening effect is affected by the pore structure and forming method. The pore sizes are 1.6 ~ 3.2mm and 0.63 ~ 0. The sound-absorbing effect of the 8mm sample is the best, and the sound-damping effect of large porosity is better. The sound-deadening performance of the foamed aluminum of the shaped body method is obviously better than that of the discrete particle aluminum foamed aluminum.