企業名稱:安陽市(shi)德世保溫(wen)材料有限公(gong)司
聯系人:張總
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地址:湯(tang)陰(yin)縣(xian)宜溝鎮(zhen)三里(li)屯
地(di)址(zhi):鄭州市華南城6A-1-370
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玻璃棉管保溫層出現(xian)空鼓的原因
玻璃棉管(guan)是(shi)保溫隔熱、防震緩沖性(xing)能良好的管(guan)材,大(da)多應用在(zai)供熱管(guan)道和供水管(guan)道中(zhong)。棉管(guan)安裝不當會出現保溫層空鼓情況,我們一起來探(tan)尋其(qi)中(zhong)的原因。
導(dao)(dao)致玻(bo)(bo)璃棉管保溫層空鼓(gu)的(de)原因(yin)主(zhu)要有六個(ge),一是(shi)(shi)因(yin)為(wei)現(xian)場(chang)安(an)裝時,攪(jiao)拌的(de)水灰比(bi)例不(bu)合適(shi),導(dao)(dao)致棉管保溫漿料粘結力差引起保溫層空鼓(gu),因(yin)此施工(gong)中(zhong)要嚴格控制水灰比(bi)。第二個(ge)原因(yin)是(shi)(shi)施工(gong)現(xian)場(chang)攪(jiao)拌不(bu)均(jun)勻,導(dao)(dao)致部分玻(bo)(bo)化微(wei)珠(zhu)漿料的(de)粘結力不(bu)足(zu),從而出(chu)現(xian)空鼓(gu);解決辦法是(shi)(shi)施工(gong)中(zhong)使用機(ji)械(xie)攪(jiao)拌,適(shi)當(dang)延長膠(jiao)粉料的(de)攪(jiao)拌時間,攪(jiao)拌均(jun)勻后將(jiang)膠(jiao)粉料加入棉管中(zhong)進行短暫攪(jiao)拌。玻(bo)(bo)璃棉廠家(jia)
如(ru)果上墻(qiang)施(shi)工時(shi)使用的膠粉料超過使用時(shi)間,也會(hui)引(yin)起玻(bo)璃棉管保溫層空鼓,所(suo)以玻(bo)璃棉廠家(jia)建議您盡快(kuai)用完攪(jiao)拌好的保溫漿料。棉管施(shi)工前要(yao)進行(xing)墻(qiang)面清潔,去掉表面的浮塵、油(you)污、隔離(li)劑(ji)和墻(qiang)角雜(za)物,這樣才能保證不出現空鼓。
如果(guo)涂(tu)抹(mo)厚度(du)超過標準(zhun)也會造成空鼓(gu),因此單次涂(tu)抹(mo)厚度(du)要(yao)(yao)求(qiu)適當(dang),設計厚度(du)≥2.5cm時(shi)最好分兩層施工(gong),第一層厚度(du)不(bu)超過1.5cm,還要(yao)(yao)壓(ya)實,使之與墻(qiang)體粘(zhan)貼牢固。在(zai)漿(jiang)體收(shou)(shou)汗前后進行收(shou)(shou)平(ping)(ping)等(deng)施工(gong)會攪動粘(zhan)結面并(bing)引起空鼓(gu),所以施工(gong)中,在(zai)漿(jiang)體收(shou)(shou)汗前后盡量不(bu)要(yao)(yao)進行平(ping)(ping)等(deng)施工(gong)。
巖棉板高端保溫及吸(xi)聲性能?
高端(duan)保(bao)溫巖(yan)(yan)棉板對聲(sheng)(sheng)(sheng)(sheng)音中高頻有較好的(de)吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)。影響(xiang)高端(duan)保(bao)溫巖(yan)(yan)棉板吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)的(de)主(zhu)要(yao)因(yin)素(su)是厚(hou)度(du)(du)、密度(du)(du)和(he)空(kong)氣(qi)(qi)流(liu)阻(zu)等。密度(du)(du)是每立方(fang)米(mi)材料(liao)的(de)重量。空(kong)氣(qi)(qi)流(liu)阻(zu)是單位厚(hou)度(du)(du)時材料(liao)兩(liang)側空(kong)氣(qi)(qi)氣(qi)(qi)壓(ya)和(he)空(kong)氣(qi)(qi)流(liu)速(su)之比。空(kong)氣(qi)(qi)流(liu)阻(zu)是影響(xiang)高端(duan)保(bao)溫巖(yan)(yan)棉板吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)最重要(yao)的(de)因(yin)素(su)。流(liu)阻(zu)太(tai)小,說明材料(liao)稀疏,空(kong)氣(qi)(qi)振動容易穿過,吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)下降;流(liu)阻(zu)太(tai)大(da),說明材料(liao)密實(shi),空(kong)氣(qi)(qi)振動難于傳入,吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)亦下降。對于高端(duan)保(bao)溫巖(yan)(yan)棉板來講(jiang),吸(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)性(xing)(xing)(xing)能(neng)(neng)(neng)存在最佳(jia)流(liu)阻(zu)。在實(shi)際工(gong)程中,測定空(kong)氣(qi)(qi)流(liu)阻(zu)比較困難,但可以通過厚(hou)度(du)(du)和(he)容重粗略估計和(he)控制(zhi)。玻(bo)璃棉廠家
1、隨著厚度增加,中低頻吸聲系數顯著地(di)增加,但(dan)高(gao)頻變(bian)化(hua)不大。
2、厚(hou)(hou)度(du)不(bu)變,容(rong)重(zhong)增(zeng)加,中(zhong)低頻(pin)(pin)吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數亦(yi)增(zeng)加;但當(dang)容(rong)重(zhong)增(zeng)加到一(yi)定程度(du)時(shi),材料變得密(mi)實,流阻(zu)大于(yu)(yu)最(zui)佳(jia)流阻(zu),吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數反(fan)而下(xia)降(jiang)。對(dui)于(yu)(yu)厚(hou)(hou)度(du)超過5cm的(de)(de)(de)(de)容(rong)重(zhong)為(wei)16Kg/m3的(de)(de)(de)(de)離心玻璃棉,低頻(pin)(pin)125hz約為(wei)0.2,中(zhong)高(gao)頻(pin)(pin)的(de)(de)(de)(de)吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數已經接(jie)近(jin)于(yu)(yu)1了。當(dang)厚(hou)(hou)度(du)由(you)5cm繼續(xu)增(zeng)大時(shi),低頻(pin)(pin)的(de)(de)(de)(de)吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數逐漸提高(gao),當(dang)厚(hou)(hou)度(du)大于(yu)(yu)1m以(yi)上時(shi),低頻(pin)(pin)125hz的(de)(de)(de)(de)吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數也(ye)將(jiang)接(jie)近(jin)于(yu)(yu)1。當(dang)厚(hou)(hou)度(du)不(bu)變,容(rong)重(zhong)增(zeng)大時(shi),高(gao)端(duan)(duan)保(bao)溫(wen)巖棉板(ban)的(de)(de)(de)(de)低頻(pin)(pin)吸(xi)(xi)聲(sheng)(sheng)系(xi)(xi)(xi)數也(ye)將(jiang)不(bu)斷提高(gao),當(dang)容(rong)重(zhong)接(jie)近(jin)110kg/m3時(shi)吸(xi)(xi)聲(sheng)(sheng)性能達(da)到最(zui)大值,50mm厚(hou)(hou)、頻(pin)(pin)率125hz處接(jie)近(jin)0.60.7。容(rong)重(zhong)超過120kg/m3時(shi),吸(xi)(xi)聲(sheng)(sheng)性能反(fan)而下(xia)降(jiang),是因為(wei)材料變得致密(mi),中(zhong)高(gao)頻(pin)(pin)吸(xi)(xi)聲(sheng)(sheng)性能受(shou)到很大影響,當(dang)容(rong)重(zhong)超過300kg/m3時(shi),吸(xi)(xi)聲(sheng)(sheng)性能減小(xiao)很多。建筑聲(sheng)(sheng)學(xue)中(zhong)常(chang)用的(de)(de)(de)(de)吸(xi)(xi)聲(sheng)(sheng)高(gao)端(duan)(duan)保(bao)溫(wen)巖棉板(ban)的(de)(de)(de)(de)厚(hou)(hou)度(du)有3cm、5cm、10cm,容(rong)重(zhong)有80、100、120、140、160kg/m3。通常(chang)使用5cm厚(hou)(hou),的(de)(de)(de)(de)高(gao)端(duan)(duan)保(bao)溫(wen)巖棉板(ban)。