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class="title">詳細(xì)說(shuō)明</p><div id="79b9z9p" class="box"><p><p> 門窗口等部位的遮擋 </p> <p> 聚氨酯預(yù)制件粘結(jié)完成后噴施硬泡聚氨酯之前，應(yīng)充分做好遮擋工作。門窗口等一般用塑料布裁成與門窗口面積相當(dāng)?shù)牟級(jí)K進(jìn)行遮擋。對(duì)于架子管，鐵藝等不規(guī)則需防護(hù)部位應(yīng)采用塑料薄膜進(jìn)行纏繞防護(hù)。 </p> <p> 噴刷聚氨酯防潮底漆 </p> <p> 用噴槍或滾刷將聚氨酯防潮底漆均勻噴刷，無(wú)透底現(xiàn)象，噴涂?jī)杀?，時(shí)間間隔為2小時(shí)。濕度大的天氣，適當(dāng)延長(zhǎng)時(shí)間間隔，以***遍表干為標(biāo)準(zhǔn)。 </p> <p> 噴涂硬泡聚氨酯保溫層 </p> <p> 開啟聚氨酯噴涂機(jī)將硬泡聚氨酯均勻地噴涂于墻面之上，多層噴法：沿墻體頂角開始噴涂，噴涂B1冷凍庫(kù)施工材料，先頂0.5mm的底層，之后每層厚度20mm多次進(jìn)行噴涂、使聚氨酯泡沫形成多層發(fā)泡。使冷庫(kù)保溫效果達(dá)到更佳，同時(shí)對(duì)聚氨酯泡沫的強(qiáng)度達(dá)到更高，不會(huì)產(chǎn)生開裂，噴涂B1冷凍庫(kù)施工材料、脫落。聚氨酯鴨舍保溫，噴涂B1冷凍庫(kù)施工材料，延長(zhǎng)鋼管使用壽命，支撐工作管并能承受一定的外部荷載。噴涂B1冷凍庫(kù)施工材料</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="噴涂B1冷凍庫(kù)施工材料,冷凍庫(kù)施工" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281767556162109/3137866.png"></div><p> 硬泡聚氨酯噴涂過(guò)程中的安全保障措施 </p> <p> 噴涂前充分做好遮擋工作。一般門窗用塑料彩條布裁成與門窗口面積相當(dāng)?shù)牟級(jí)K進(jìn)行遮擋。對(duì)于架子管、鐵藝等不規(guī)則需防護(hù)部位，應(yīng)采用聚乙烯保鮮膜進(jìn)行纏繞防護(hù)。噴涂時(shí)易產(chǎn)生聚氨酯泡沫飛濺，施工人員要做好勞動(dòng)保護(hù)。嚴(yán)格遵循高空作業(yè)安全法則，必須佩戴安全帽、安全帶，特別是吊籃施工更要采取有效的防護(hù)措施，防止吊籃墜落。新工人上崗前必須接受嚴(yán)格的技術(shù)培訓(xùn)和安全教育。噴涂操作周圍應(yīng)作圍擋遮蔽，以免對(duì)環(huán)境造成染。采用腳手架施工時(shí)要用小眼安全網(wǎng)遮蓋嚴(yán)密；用吊籃施工時(shí)，吊籃四周應(yīng)做高度不低于1.8m、寬不小于噴涂范圍的防飛濺物，以免聚氨酯顆粒隨風(fēng)吹走污染環(huán)境嚴(yán)禁電焊等明火操作施工，施工時(shí)要備足滅火器，防止出現(xiàn)現(xiàn)場(chǎng)火災(zāi)。噴涂電氣設(shè)備的安裝操作人員要持證上崗，用電要嚴(yán)格按照工地現(xiàn)場(chǎng)管理規(guī)定執(zhí)行。噴涂后及時(shí)涂刷聚氨酯界面砂漿，起到有效的防火作用。河南冷凍庫(kù)施工多少錢二次裝修時(shí)不破壞保溫層.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="噴涂B1冷凍庫(kù)施工材料,冷凍庫(kù)施工" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281767856943359/7766250.png"></div><p style="text-indent:25px">聚氨酯保溫材料在施工前，應(yīng)去除施工表面的油污和浮塵，并在施工表面噴灑少量水。使用前，將聚氨酯發(fā)泡劑罐搖動(dòng)至少60秒，確保罐內(nèi)物料均勻。若采用泵式聚氨酯發(fā)泡劑，使用時(shí)將料罐倒置與噴泵螺紋連接，旋轉(zhuǎn)打開流量閥，調(diào)節(jié)流量后再進(jìn)行噴射。若采用管式聚氨酯發(fā)泡劑，將塑料管對(duì)準(zhǔn)縫隙，撳下噴頭即可噴射。噴射時(shí)注意行進(jìn)速度，通常噴射量至所需填充體積的一半即可。由于聚氨酯硬質(zhì)泡沫屋頂密度低，質(zhì)量輕，屋頂荷載輕，就屋頂支撐板上方的載荷而言，聚氨酯硬泡沫屋頂是傳統(tǒng)屋頂實(shí)踐的四分之一，這對(duì)于改善房屋的整體結(jié)構(gòu)和降低工程造價(jià)非常重要。保溫性能好，保溫性能好，節(jié)能效果顯著：普硬泡沫導(dǎo)熱系數(shù)低，保溫性好，保溫效果好，是其他屋頂保溫材料無(wú)法比擬的，在一般住宅建筑中，聚氨酯硬質(zhì)泡沫被用作防水和隔熱屋頂，其厚度*為傳統(tǒng)材料的三分之一，但熱阻值接近三倍。</p><p> 外墻內(nèi)保溫外墻內(nèi)保溫是將保溫材料置于外墻體的內(nèi)側(cè)，其優(yōu)點(diǎn)是：對(duì)保溫材料的耐水、耐侯性等要求不高，對(duì)既有建筑節(jié)能改造特別是目前房屋賣給個(gè)人，對(duì)整棟樓或整個(gè)小區(qū)統(tǒng)一改造有團(tuán)難，對(duì)單一住戶采用內(nèi)保溫要方便一些?？蓾M足建筑節(jié)能30%的***階段要求。但外墻內(nèi)保溫暴露了一些缺點(diǎn)，使外墻內(nèi)保溫的應(yīng)用受到限制。外墻內(nèi)保溫飾面層易開裂，圈梁、構(gòu)造柱引起熱橋熱損失大，造成結(jié)露霉變現(xiàn)象。不便于用戶二次裝修，占用室內(nèi)空間。隨著我國(guó)建筑節(jié)能第二階段50%及第三階段65%的外墻保溫要求的進(jìn)一步提高，特別是既有建筑節(jié)能改造提到日程后，外墻內(nèi)保溫受到限制。外墻夾芯保溫：外墻夾芯保溫是將保溫材料置于同一外墻的內(nèi)外側(cè)葉墻片之間。其優(yōu)點(diǎn)是對(duì)保溫絕熱材料的性能、施工季節(jié)及施工條件要求不高,不影響冬季施工。缺點(diǎn)是內(nèi)外葉墻之間要有連接件，構(gòu)造比較復(fù)雜，**護(hù)結(jié)構(gòu)熱橋多，保溫材料的效率發(fā)揮不夠。聚氨酯白料、黑料在貯存運(yùn)輸中應(yīng)有防曬措施。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="噴涂B1冷凍庫(kù)施工材料,冷凍庫(kù)施工" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281767960888672/926498.png"></div><p style="text-indent:25px">聚氨酯保溫材料是通過(guò)硬泡沫聚醚多元醇與聚合MDI反應(yīng)制作而成，主要用于制備硬質(zhì)聚氨酯泡沫，***用于冰箱，冷庫(kù)，噴涂，太陽(yáng)能，熱力管道，建筑等領(lǐng)域，不過(guò)澆注型聚氨酯保溫材料保溫材料的啟發(fā)時(shí)間一般為10-15s，固化時(shí)間一般為30-50s。噴涂型聚氨酯保溫材料是一種高分子聚合物，經(jīng)特殊噴涂機(jī)混合，高壓噴涂現(xiàn)場(chǎng)發(fā)泡，聚氨酯硬質(zhì)體是一種新型合成材料的保溫防水功能，其導(dǎo)熱系數(shù)低，*為0.022~0.024W/(m·K)，相當(dāng)于擠塑板的一半，是相對(duì)比較低的保溫材料的導(dǎo)熱系數(shù)，不過(guò)噴涂型聚氨酯保溫材料的吸氣時(shí)間一般為3s，固化時(shí)間一般為15s左右。鋼網(wǎng)與保溫層貼緊局部間隙不得過(guò)大。河南冷凍庫(kù)施工多少錢</p><p style="text-indent:25px">均勻覆蓋不能有漏噴或漏刷，在噴完聚氨酯界面砂漿12-24h后，在進(jìn)行下道工序的施工。噴涂B1冷凍庫(kù)施工材料</p><p> 現(xiàn)場(chǎng)發(fā)泡噴涂量的控制 </p> <p> 在施工過(guò)程中應(yīng)盡量避免硬泡聚氨酯噴涂污染。聚氨酯材料在高壓作用下以霧狀液滴的形式從噴槍噴出，加之材料密度小，質(zhì)量輕，很容易被風(fēng)帶走，造成材料浪費(fèi)和環(huán)境污染。聚氨酯噴涂施工中在建筑角線、裝飾線等施工中材料浪費(fèi)極其嚴(yán)重。在建筑大角施工時(shí)，有近1/2的材料不能被噴涂到墻體上，材料浪費(fèi)嚴(yán)重。在施工過(guò)程中，還應(yīng)有效控制基層平整度。基層墻體平整度太差，也造成一定的材料浪費(fèi)。此外，如果聚氨酯噴涂過(guò)程中基層墻體的平整度誤差太大，則需要把局部正偏差太大的部分鋸掉，這樣就浪費(fèi)了聚氨酯材料和人力成本，還會(huì)給后續(xù)施工帶來(lái)難度。噴涂B1冷凍庫(kù)施工材料</p></p><br 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