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>瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="xmjg2t7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海龍況實業(yè)發(fā)展有限公司</a></p><p><span>聯(lián)系人：</span>王金普</p><p><span>郵箱: </span>330365097@qq.com</p><p><span>電話: </span>13044679988</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.tmjc88.com</p><p><span>手機: </span>021-88888888</p><p><span>地址: </span>肖塘路255弄10號1層</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="yqdafrt" class="page-proshow02"><p class="title">詳細說明</p><div id="7tnp8q8" class="box"><p><p style="text-indent:25px">怎么消除噪音？雞蛋棉是個不錯的選擇。人類一直在尋找降低噪音的辦法，特別是一些特殊的行業(yè)就需要噪音越小越好，哈爾濱阻燃雞蛋棉哪家好，通常降低噪音有三種辦法。一種方法是在發(fā)聲的源頭上控制噪音，也就是說讓發(fā)聲體減小或者是停止振動，這種辦法是從發(fā)聲源頭直接讓噪音消失，當直接讓發(fā)聲源停止振動后，就沒有辦法持續(xù)在空氣中產生振動。第二種就是在人接收聲音的耳朵處將噪音阻隔在外，例如說帶上耳塞就能有效的降低噪音進入人耳的音量，即便是不改變發(fā)聲源和傳播途徑，也能夠有效降低噪音，哈爾濱阻燃雞蛋棉哪家好。第三種就是讓聲音在傳播過程中通過阻擋，過濾以及吸收等方法，哈爾濱阻燃雞蛋棉哪家好，將噪音逐漸降低甚至讓其停止傳播。波浪吸音海綿（雞蛋棉）：是采用聚胺酯海綿材料。哈爾濱阻燃雞蛋棉哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱阻燃雞蛋棉哪家好,雞蛋棉" src="https://tyunfile.71360.com/UploadFile/Shwwjp/637357768642177735/3155894.png"></div><p style="text-indent:25px">雞蛋棉又名波浪棉、波峰棉。是吸音棉中的一種。雞蛋棉是經過設備特殊處理形成一面凸凹波浪形的一種海棉，其內部充滿細小空隙及半開孔結構能大量吸收射入的聲波能量對聲波起到衰減作用，降低室內反射聲的干擾和回響，提高聲音的純度，是吸音降澡材料的高性能產品。雞蛋棉的分類：防火于不防火：雞蛋棉又分為防火雞蛋棉和不防火雞蛋棉。防火雞蛋棉是添加了助燃劑，助燃的標準是離火即息的效果。顏色分類:防火雞蛋棉一般會有黑色和白色，不防火的雞蛋棉可做成多種顏色，有粉紅色、黃色、藍色、黑色和白色。厚度和密度：雞蛋棉的厚度常規(guī)說法是兩張波峰重合后的厚度，單張的厚度一般會是商家所說的雙張厚度的4分之3厚度。隨著雞蛋棉的吸音厚度和密度的變化，雞蛋棉的吸音效果與雞蛋棉的厚度和密度成正比。選擇密度的時候可根據(jù)實際用途選擇厚度。哈爾濱阻燃雞蛋棉哪家好雞蛋棉吸音原理是什么？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱阻燃雞蛋棉哪家好,雞蛋棉" src="https://tyunfile.71360.com/UploadFile/Shwwjp/637357768705166016/7578181.png"></div><p style="text-indent:25px">吸音原理：一般來說，多孔性吸聲材料以吸收中、高頻聲能為主。其主要構造特征是材料從表面到內部均有相互連通的微孔。吸聲材料主要的吸聲機理是當聲波入射到多孔性材料的表面時激發(fā)其微孔內部的空氣振動，使空氣的動能不斷轉化為熱能，從而聲能被衰減；另外在空氣絕熱壓縮時，空氣與孔壁之間不斷發(fā)生熱交換，也會使聲能轉化為熱能，從而被衰減。孔性吸聲材料必須具備條件：（1）材料內部應有大量的微孔或間隙，而且孔隙應盡量細小或分布均勻。（2）材料內部的微孔必須是向外敞開的，也就是說必須通到材料的表面，使得聲波能夠從材料表面容易地進入到材料的內部。（3）材料內部的微孔一般是相互連通的，而不是封閉的。</p><p style="text-indent:25px">吸音材料：吸聲材料大多為疏松多孔的材料，如礦渣棉、毯子等，其吸聲機理是聲波深入材料的孔隙，且孔隙多為內部互相貫通的開口孔，受到空氣分子摩擦和粘滯阻力，以及使細小纖維作機械振動，從而使聲能轉變?yōu)闊崮?。這類多孔性吸聲材料的吸聲系數(shù)，一般從低頻到高頻逐漸增大，故對高頻和中頻的聲音吸收效果較好. 吸聲降噪：在車間、廠房、大的開敞式空間（機場大廳、辦公室、展廳等），由于混響聲的原因，會使噪聲比之同樣聲源在室外高10-15dB。，通過在室內布置吸聲材料，可以使混響聲被吸掉，降低室內噪聲。吸聲降噪至多可以獲得10-15dB的降噪量。降噪量=10lg(A0/A1),未加入吸聲材料時室內吸聲量越少，加入吸聲材料后室內吸聲量越多，降噪效果越好。熔噴生產聚酯纖維吸音棉纖維細小，一種由直徑為1-4 微米。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱阻燃雞蛋棉哪家好,雞蛋棉" src="https://tyunfile.71360.com/UploadFile/Shwwjp/637357768714960938/2528492.png"></div><p style="text-indent:25px">室內聲源情況對吸聲降噪效果的影響：如果室內分布多個聲源，室內各處的直達聲都很強，吸聲效果就比較差，往往只能降低3-4dB。盡管降低量有限，但減少了混響聲，室內工作人員的主觀上消除了噪聲來自四面八方的混亂感，反映較好。吸聲處理對于聲源距離近的位置效果差，對于聲源距離遠的位置效果好，對傳到室外的噪聲降低效果也很明顯。吸聲降噪效果與房間形狀、尺寸、吸聲位置有關:如果房間容積很大，人們的活動區(qū)域靠近聲源，直達聲占主導地位，此時吸聲效果差。容積較小的房間，聲音在天花和墻壁上反射多次后與直達聲混合，反射聲多，此時吸聲處理效果就明顯。經驗表明，3000m3以下的房間吸聲降噪效果好，更大的房間，吸聲效果不理想。不過，若房間體型瘦長，頂棚低，房間長度大于高寬的5倍以上，由于聲音的反射類似與在管道中爬行，吸聲處理的降噪效果也較好。吸音棉有的種類不止一種，看你是用在哪里了。吸音蜂窩棉生產供應</p><p style="text-indent:25px">不防火的雞蛋棉可做成多種顏色，例如紅色、黃色、藍色、黑色等顏色。哈爾濱阻燃雞蛋棉哪家好</p><p style="text-indent:25px">音箱內部加入吸音棉（雞蛋棉）的作用主要是調節(jié)Q值，填充的吸音棉能吸收喇叭反向的聲波，防止聲波反射與折射，擾亂正常的聲波。厚實的吸音棉是用膠水貼在音箱內部的箱體壁上，厚實材質一般使用玻璃棉、礦棉等；柔軟的吸音棉則可以直接塞在音箱里面，柔軟材質一般使用棉花、聚酯吸音棉等。封閉式音箱由于不需要導向孔傳出揚聲器背面的聲波，所以箱體內需要安裝多一點吸音棉以達到盡可能多地消除箱體震動，從而獲得較佳低音表現(xiàn)。倒相式音箱可以不加或稍加吸音材料，因為倒相式音箱內部的聲能可以通過倒相孔釋放出來。哈爾濱阻燃雞蛋棉哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3107059.html</p></div></div></div></div></div><div id="kdkmrsu" class="page-right twoColRt"><div id="8tahzg3" class="box01 margin10 clearfix"><h3><a 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