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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bcjvsjq" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>黃石隧道防火涂料報價,防火涂料</p><p><span>***更新：</span>2020-11-25 09:06:31</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="yxzl8s7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">武漢輝之達(dá)商貿(mào)有限公司</a></p><p><span>聯(lián)系人：</span>閔輝</p><p><span>郵箱: </span>3022530749@QQ.com</p><p><span>電話: </span>13995544308</p><p><span>傳真: </span>139_95544308</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>139-95544308</p><p><span>地址: </span>七雄路海峽創(chuàng)業(yè)城2期2棟13樓</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="02jxdkb" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="guwyfri" class="box"><p><p> 防火知識編輯 </p> <p> 種類 </p> <p> 防火涂料種類很多，但是按照防火涂料的使用對象以及防火涂料的涂層厚度來看，一般分為飾面型涂料和鋼結(jié)構(gòu)防火涂料。 </p> <p> 飾面型防火涂料一般用作可燃基材的保護(hù)性材料，具有一定的裝飾性和防火性，又分為水性和溶劑型兩大類。而鋼結(jié)構(gòu)防火涂料主要是用作不燃燒體構(gòu)件的保護(hù)性材料，這類防火涂料的涂層比較厚，黃石隧道防火涂料報價，而且密度小、導(dǎo)熱系數(shù)低，所以具有優(yōu)良的隔熱性能，又分為有機(jī)防火涂料和無機(jī)防火涂料。 </p> <p> <br /> </p> <p> 防火涂料種類很多，但是按照防火涂料的使用對象以及防火涂料的涂層厚度來看，一般分為飾面型涂料和鋼結(jié)構(gòu)防火涂料。 </p> <p> 飾面型防火涂料一般用作可燃基材的保護(hù)性材料，具有一定的裝飾性和防火性，又分為水性和溶劑型兩大類。而鋼結(jié)構(gòu)防火涂料主要是用作不燃燒體構(gòu)件的保護(hù)性材料，這類防火涂料的涂層比較厚，而且密度小、導(dǎo)熱系數(shù)低，所以具有優(yōu)良的隔熱性能，又分為有機(jī)防火涂料和無機(jī)防火涂料。 </p> <p> <br /> 防火涂料的特點(diǎn)能很好地避免火勢蔓延，黃石隧道防火涂料報價，采用的結(jié)構(gòu)特殊，黃石隧道防火涂料報價，能起到控制作用，避免火勢蔓延到不應(yīng)發(fā)生的區(qū)域。黃石隧道防火涂料報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃石隧道防火涂料報價,防火涂料" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/whhzd/2019/12/637124765175547108/6371247651755471084601690.jpg"></div><p> 公共***所火災(zāi)特征：火勢強(qiáng)烈、延伸敏捷、易形成大面積立體火勢；燃燒產(chǎn)品煙霧濃、毒性大，易形成人員傷亡；人員密集，極易呈現(xiàn)擁堵踐踏狀況，人員分散困難；位處富貴區(qū)域，觸及廣，火災(zāi)影響大。針對公共***所火災(zāi)頻發(fā)，人員傷亡狀況較大，財產(chǎn)損失較大的狀況，我國針對建筑材料的耐火維護(hù)日益注重，有關(guān)防火設(shè)計規(guī)范會對相關(guān)材料、構(gòu)件等提出相應(yīng)的防火、阻燃要求。一般會使用到鋼結(jié)構(gòu)防火涂料、混凝土防火涂料、木結(jié)構(gòu)防火涂料這三類，而作為公共***所，因?yàn)閷Ρ旧韮?nèi)部的裝飾性、美化性和新潮性的要求，飾面型防火涂料成為主要使用產(chǎn)品。盡管防火涂料**是我們可以采取的控火辦法之一，但是在公共***所運(yùn)用防火涂料可以有用的為我們熄滅前期火災(zāi)贏得珍貴的時刻，并為贏得更多的人員分散時間起到不可磨滅的作用，所以在公共***所的消防安全問題將越來越成為人們在消防范疇重視的焦點(diǎn)?，F(xiàn)在，加強(qiáng)在公共***所防火涂料的運(yùn)用，贏得更多的人員生命財產(chǎn)安全和更低的財產(chǎn)損失具有重大的意義。黃石隧道防火涂料報價厚鋼結(jié)構(gòu)防火涂料的沉淀和結(jié)塊，這種現(xiàn)象被稱為沉淀現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃石隧道防火涂料報價,防火涂料" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/whhzd/2019/12/637124764562646054/6371247645626460549208363.jpg"></div><p style="text-indent:25px">是否防火涂料的涂層越厚，它的耐火性能就越好呢?一般來說是這樣的，對非膨脹型防火涂料來說，正是依賴于它本身的難燃性和不燃性來阻止火焰?zhèn)鞑ァＫ?，涂層越厚，高溫下形成的一種釉狀物也越厚，防火涂料的隔熱效果也會得到提高。對膨脹型防火涂料來說，涂層厚，受火膨脹發(fā)泡，形成隔絕氧氣和隔熱的泡沫層也愈厚，同時部分含氮防火涂料分解出的[NO]、[NH3]等基團(tuán)增多，與有機(jī)游離基化合，中斷鏈鎖反應(yīng)的效果也好。所以，從提高耐火性能來說，防火涂料處理時，涂層越厚越好。</p><p style="text-indent:25px">建筑防火是消防科學(xué)技術(shù)的一個重要領(lǐng)域，而防火涂料又是防火建筑材料中的重要組成部分。防火涂料是指涂裝在物體表面，可防止火災(zāi)發(fā)生，阻止火勢蔓延傳播或隔離火源，延長基材著火時間或增加絕熱性能以推遲結(jié)構(gòu)破壞時間的一類涂料。按用途和使用對象的不同可分為：飾面型防火涂料、電纜防火涂料、鋼結(jié)構(gòu)防火涂料、預(yù)應(yīng)力混凝土樓板防火涂料等。中國防火涂料的發(fā)展，較國外工業(yè)發(fā)達(dá)國家晚15～20年，雖然起步晚，但發(fā)展速度較快。尤其是鋼結(jié)構(gòu)防火涂料，從品種類型、技術(shù)性能、應(yīng)用效果和標(biāo)準(zhǔn)化程度上看，已接近或達(dá)到國際先進(jìn)水平。近幾年，其需求量成倍增長，這與鋼結(jié)構(gòu)建筑的迅速發(fā)展是分不開的。防火涂料的特點(diǎn)是什么？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黃石隧道防火涂料報價,防火涂料" src="http://tyunfile.71360.com/WaterMark/UpLoadFile/whhzd/2019/12/637124768791126435/6371247687911264356757563.jpg"></div><p style="text-indent:25px">在高速發(fā)展的建筑中，采用混凝土的建筑結(jié)構(gòu)十分普遍，其中，預(yù)應(yīng)力鋼筋混凝土比普通鋼筋混凝土的抗裂性、剛度、抗剪性和穩(wěn)定性更好，質(zhì)量更輕，并能節(jié)省混凝土和鋼材。但是，應(yīng)用較多的預(yù)應(yīng)力鋼筋混凝土空心樓板的耐火性能很差，其原因是：預(yù)應(yīng)力鋼筋的溫度達(dá)200℃時，屈服點(diǎn)開始下降，300℃時，預(yù)應(yīng)力幾乎全部消失，蠕變加快，致使預(yù)應(yīng)力板的強(qiáng)度、剛度迅速降低，從而板中的撓度變化加快，板下面出現(xiàn)裂縫，預(yù)應(yīng)力鋼筋直接受到高溫作用，其剛度和強(qiáng)度進(jìn)一步下降，混凝土在高溫下性能也在改變，板下的混凝土受熱膨脹方向與板受拉方向一致，助長了板中撓度的變化?；炷猎?00℃時，強(qiáng)度開始下降，500℃強(qiáng)度降低一半左右，800℃強(qiáng)度幾乎喪失。在建筑火災(zāi)中，這類樓板均在0.5h左右即斷裂垮塌。防火涂料的防火機(jī)理。黃石薄型防火涂料包工包料</p><p style="text-indent:25px">室外鋼結(jié)構(gòu)防火涂料:用于建筑物室外或露天工程的鋼結(jié)構(gòu)表面。黃石隧道防火涂料報價</p><p> 涂覆在鋼構(gòu)件上的厚型鋼結(jié)構(gòu)防火涂料的防火隔熱原理是防火涂料受火時涂層基本上不發(fā)生體積變化，但涂層熱導(dǎo)率很低，延滯了熱量傳向被保基材的速度，防火涂料的涂層本身是不燃的，對鋼構(gòu)件起屏障和防止熱輻射作用，避免了火焰和高溫直接進(jìn)攻鋼構(gòu)件.還有涂料中的有些組分遇火相互反應(yīng)而生成不燃?xì)怏w的過程是吸熱反應(yīng)，也消耗了大量的熱，有利于降低體系溫度，故防火效果***，對鋼材起到高效的防火隔熱保護(hù).另外該類鋼結(jié)構(gòu)防火涂料受火時涂層不發(fā)生體積變化形成釉狀保護(hù)層，它能起隔絕氧氣的作用，使氧氣不能被保護(hù)的易燃基材接觸，從而避免或降低燃燒反應(yīng).但這類涂料所生成釉狀保護(hù)層導(dǎo)熱率往往較大，隔熱效果差.為了取得一定的防火隔熱效果，厚涂型防火涂料一般涂層較厚才能達(dá)到一定的防火隔熱性能要求。黃石隧道防火涂料報價</p><p style="text-indent:25px">武漢輝之達(dá)商貿(mào)有限公司位于七雄路海峽創(chuàng)業(yè)城2期2棟13樓。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下膨脹型防火涂料，熱反射防曬隔熱涂料，隧道防火涂料，熱反射隔熱涂料深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造化工良好品牌。輝之達(dá)供應(yīng)立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2138193.html</p></div></div></div></div></div><div id="uj8ny82" class="page-right twoColRt"><div id="p327lcj" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="84yub2g" 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