硬质塑料薄膜吸声体的研制

• 作 者: 金人端
• 机 构: 黑龙江省劳保所,
• 出 处: 环境工程
• 发表日期: 1985年03期
• 关键词: 吸声 硬质塑料 空间吸声体 岩棉板 厅堂音质 多孔材料 多孔吸声材料 噪声控制 泡沫塑料 建声

一、空间吸声体的发展动态在建声和噪声控制中,常采用吸声的方法控制厅堂和工厂车间的混响声来改善厅堂音质和降低机器的噪声,究制出各种几何形状的空间吸声体(如平板形、梭柱形、圆筒形、球形等)和吸声吊顶。这类吸声体大多数采用多孔吸声材料(超细玻璃棉、透气性泡沫塑料、甘蔗板、岩棉板、矿棉毡、纤维石膏板等)制成,但是在尘多和湿度大的环境下使用上述多孔材料制作的吸声体或吸声吊

First, the development of space sound absorption body In the construction of sound and noise control, often using sound absorption method to control the hall and factory workshop reverberation sound to improve the hall sound quality and reduce the machine noise, the system of various geometric space Sound absorption body (such as flat-shaped, fusiform, cylindrical, spherical, etc.) and acoustic ceiling. Most of these sound-absorbing materials using porous sound-absorbing materials (ultra-fine glass wool, breathable foam, sugar cane board, rock wool board, mineral wool felt, fiberglass board, etc.) made, but in dusty and humidity Environment using the above-mentioned porous material made of sound-absorbing body or suction cradle