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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>湖北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖南茂源玻璃棉卷氈報(bào)價(jià)</p><p><span>***更新：</span>2020-06-20 17:22:14</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="swyfjvc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">荊州開發(fā)區(qū)茂源保溫材料廠</a></p><p><span>聯(lián)系人：</span>朱杰</p><p><span>郵箱: </span>1007714548@qq.com</p><p><span>電話: </span>18261227725</p><p><span>傳真: </span>0716_34659425</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0716-34659425</p><p><span>地址: </span>湖北省荊州市沙市區(qū)東方大道紡印一路19號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="isurdpb" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="im2ho32" class="box"><p><p style="text-indent:25px">吸音棉是多孔吸聲材料，當(dāng)聲波在空氣中引起振動(dòng)時(shí)，吸音棉透氣性的物理參數(shù)會(huì)使微量的空氣從多孔材料的孔隙中通過，此時(shí)材料的兩面的靜壓差和氣流線速度之間的比就是材料的流阻。吸引材料的內(nèi)部微孔數(shù)量、大小以及互相連通的程度等因素都會(huì)影響流阻的大小，流阻的大小對材料吸音作用有著重要的影響。一定厚度的多空材料應(yīng)該對應(yīng)一個(gè)合理的流阻數(shù)值，過高或過低都會(huì)影響材料的吸音性能，湖南茂源玻璃棉卷氈報(bào)價(jià)，湖南茂源玻璃棉卷氈報(bào)價(jià)，湖南茂源玻璃棉卷氈報(bào)價(jià)。因此，要對材料的流阻進(jìn)行調(diào)整，將流阻值控制在科學(xué)的范圍內(nèi)，發(fā)揮出其比較大的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南茂源玻璃棉卷氈報(bào)價(jià)" src="http://tyunfile.71360.com/UpLoadFile/maoyuanbaowen/2019/8/637012168664220917/6370121686642209173674438.jpg"></div><p style="text-indent:25px"> 辦公室裝修常用的降音減噪三大材料之吸音材料：吸音材料的性質(zhì)與作用基本與隔音材料相反，其材質(zhì)多孔疏松透氣，其內(nèi)含有大量互相貫通從表到里的微孔，聲音傳播到該類材料上可以通過這些微孔繼續(xù)向內(nèi)傳播，但是聲音在該類材料內(nèi)傳播的時(shí)候因?yàn)槟Σ亮σ约盁醾鲗?dǎo)作用，將聲能轉(zhuǎn)化為熱能，從而達(dá)到吸音效果，辦公室裝修中，此類材料往往布置在辦公室內(nèi)部，吸收室內(nèi)所產(chǎn)生的噪音。辦公室裝修常用的降音減噪三大材料之減震材料：減震材料的使用可以減小聲音在材料中傳播時(shí)候產(chǎn)生的振動(dòng)，提高材料的隔音效果，因此，減震**在隔音與吸音材料之外但是又與隔音吸音密不可分</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南茂源玻璃棉卷氈報(bào)價(jià)" src="http://tyunfile.71360.com/UpLoadFile/maoyuanbaowen/2019/8/637012168162239820/6370121681622398202300964.jpg"></div><p style="text-indent:25px">多孔材料背后空氣層的影響：多孔材料的背后空氣層的厚薄程度，對其吸聲功能有著重要的影響。當(dāng)多孔材料與剛性壁有一定的空間時(shí)，材料的背面會(huì)出現(xiàn)一定的空腔，增加了材料的有效厚度，對其低頻噪音吸收功能有著一定的影響。當(dāng)多孔材料的厚度與堆密度一定時(shí)，背后空氣層變化的影響較大，當(dāng)空氣層厚度為１／４波長的奇數(shù)倍時(shí)，吸聲系數(shù)達(dá)到比較大值。外部使用條件變化的影晌：首先，溫度的影響和變化，會(huì)使聲速和波長變化，也會(huì)因?yàn)榭諝忏@滯性導(dǎo)致流阻的變化，影響材料的吸聲功能。通常，溫度升高，高頻吸聲頻率的曲線移向高頻；其次，濕度的影響，多孔材料吸收水分，導(dǎo)致材料的本質(zhì)發(fā)生變化，材料的孔隙率下降，吸聲性能受到影響。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/328576.html</p></div></div></div></div></div><div id="3p3vhea" class="page-right twoColRt"><div id="kebdfm8" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g22ykmo" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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