CN2685580Y - 缝合空腔式毛毡 - Google Patents

缝合空腔式毛毡 Download PDF

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Publication number
CN2685580Y
CN2685580Y CN 200420015778 CN200420015778U CN2685580Y CN 2685580 Y CN2685580 Y CN 2685580Y CN 200420015778 CN200420015778 CN 200420015778 CN 200420015778 U CN200420015778 U CN 200420015778U CN 2685580 Y CN2685580 Y CN 2685580Y
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felt
sewing
sound
utility
model
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Expired - Fee Related
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CN 200420015778
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English (en)
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阎英顺
阎素梅
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Individual
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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
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Abstract

本实用新型涉及一种作吸声材料用缝合空腔式毛毡，其由下层毛毡、上层毛毡以及设在上、下层毛毡之间的毛毡条构成，本实用新型空腔式毛毡是由上下两面平面毛毡中间夹毡条缝合一体，宜作包装隔音使用，经实测频率在125－500Hza，其吸声系数是0.70－0.80；频率在1000－2000Hza，其吸声系数是0.98－0.99，低频吸声系数得到提高。

Description

缝合空腔式毛毡
技术领域
本实用新型涉及一种作吸声材料用缝合空腔式毛毡。
技术背景
目前常用吸声材料有无机吸声材料和有机吸声材料。无机吸声材料在国内市场上占主导地位，如超细玻璃棉、离心玻璃棉类。无机吸声材料含有对人体有害成分，能产生第二次污染，国外发达国家早已禁用；在我国，随着人们环保意识的提高及国家立法监督的加强，无机吸声材料势必会被逐渐淘汰。
发明内容
本实用新型所要解决的技术问题是提供一种可提高低频段吸声系数的天然环保型有机吸声材料。
本实用新型采用如下技术方案：本实用新型由下层毛毡、上层毛毡以及设在上、下层毛毡之间的毛毡条构成。
本实用新型积极效果如下：本实用新型空腔式毛毡是由上下两面平面毛毡中间夹毛毡条缝合一体。宜作包装隔音使用。经实测频率在125-500Hza，其吸声系数是0.70-0.80；频率在1000-2000Hza，其吸声系数是0.98——0.99，低频吸声系数得到提高。
附图说明
附图1是空腔式毛毡的结构示意图
附图2为本实用新型附图1的俯视图
具体实施方式
如附图所示：本实用新型可分为薄型、厚型两种。薄型的厚度为25-30mm，适宜吊顶、贴墙使用，其又有高低档次之分，高档次可染成红、绿、兰等多种颜色，具有装饰效果；厚型厚度为40-50mm，宜用作机器包装隔声使用，如球磨机筒体隔声层。本实用新型下层毛毡1为密实上浆毛毡，隔声功能好，上层毛毡2宜用梳松毛毡，吸声性能好。中间由毛毡条3间隔成的空腔可提高低频吸声系数。

Claims (1)

1、一种缝合空腔式毛毡，其特征在于其由下层毛毡(1)、上层毛毡(2)以及设在上、下层毛毡之间的毛毡条(3)构成。
CN 200420015778 2004-02-20 2004-02-20 缝合空腔式毛毡 Expired - Fee Related CN2685580Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420015778 CN2685580Y (zh) 2004-02-20 2004-02-20 缝合空腔式毛毡

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420015778 CN2685580Y (zh) 2004-02-20 2004-02-20 缝合空腔式毛毡

Publications (1)

Publication Number Publication Date
CN2685580Y true CN2685580Y (zh) 2005-03-16

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Family Applications (1)

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CN 200420015778 Expired - Fee Related CN2685580Y (zh) 2004-02-20 2004-02-20 缝合空腔式毛毡

Country Status (1)

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CN (1) CN2685580Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101833948A (zh) * 2010-04-14 2010-09-15 南通杰西电器有限公司 一种双重消声器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101833948A (zh) * 2010-04-14 2010-09-15 南通杰西电器有限公司 一种双重消声器
CN101833948B (zh) * 2010-04-14 2011-08-17 南通杰西电器有限公司 一种双重消声器

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Granted publication date: 20050316

Termination date: 20110220