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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_swfw/">商務(wù)服務(wù)</a>?<a href="http://www.cdcfah.com/cp/third-swfw_jiancefuwu/">檢測(cè)服務(wù)</a>?優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算誠(chéng)信為本上海華慧檢測(cè)技術(shù)供應(yīng)</p><div id="yrzw2wt" class="leftbox clearfix"><h1>優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算誠(chéng)信為本上海華慧檢測(cè)技術(shù)供應(yīng)</h1><div id="bf2iykr" class="proBig"><div id="ixuwqcz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376058378906/1054254.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="r7r7dfm" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376058378906/1054254.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2pwnkmy" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算,燃燒性能檢測(cè)</p><p><span>***更新：</span>2021-01-17 07:12:38</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="g8l4xkw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海華慧檢測(cè)技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>晏閩南</p><p><span>郵箱: </span>yann7873@163.com</p><p><span>電話: </span>19512260464</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.cfpo.com.cn</p><p><span>手機(jī): </span>021-69910835</p><p><span>地址: </span>匯善路685號(hào)2幢4層401-410室</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="ra2wt3n" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="xhzbyac" class="box"><p><p style="text-indent:25px">頻率是指閃爍頻率，它和有些火焰檢測(cè)器中的脈沖(Pulse)頻率有本質(zhì)區(qū)別，前者是燃料混合物火焰燃燒所特有的屬性，而后者只是對(duì)火焰強(qiáng)度的一種顯示方法。開始計(jì)時(shí)。當(dāng)對(duì)試件施加火焰10s 后移開火源，記錄試件有焰燃燒時(shí)間，試件有焰燃燒熄滅后，按上述方法再施加火焰 10s，分別記錄移開火焰后試件有焰燃燒和無(wú)焰燃燒時(shí)間。不同的紡織品阻燃標(biāo)準(zhǔn)都有各自的測(cè)試方法，而相同的紡織品也可以用不同的測(cè)試方法來評(píng)價(jià)其阻燃性能，但由于評(píng)價(jià)阻燃性能的指標(biāo)繁多且冗余，優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算、不統(tǒng)一，優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算，對(duì)于相同的織物，優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算，用不同測(cè)試方法測(cè)出來的指標(biāo)之間沒有可比性。燃燒性能檢測(cè)是非常的規(guī)范化的。優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376058378906/1054254.png"></div><p style="text-indent:25px">物質(zhì)具有的或材料經(jīng)處理后具有的明顯推遲火焰蔓延的性質(zhì)。這在材料使用范圍選擇上起指導(dǎo)作用，特別用于建材、船舶，車輛，家電上的材料要求阻燃性高。目前評(píng)價(jià)阻燃性方法很多，如氧指數(shù)測(cè)定法、水平或垂直燃燒試驗(yàn)法等。B1級(jí)是阻燃級(jí)別的較高級(jí)，在可燃性試驗(yàn)當(dāng)中，邊緣點(diǎn)火開始后的20 秒內(nèi)，火焰尖頭均未達(dá)到試件150mm刻度線；表面點(diǎn)火開始后的20S內(nèi)，火焰尖頭均未到達(dá)試件150mm刻度線。經(jīng)檢測(cè)，實(shí)木材料的阻燃級(jí)別為B2級(jí)，也就是說，多米復(fù)合材料在阻燃性能上遠(yuǎn)高于實(shí)木材質(zhì)。氧指數(shù)高,說明材料燃燒需氧量大,難燃燒，氧指數(shù)小，說明材料易燃燒。優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算燃燒性能檢測(cè)設(shè)備的性能高，卻能耗低。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376041259765/4196769.png"></div><p style="text-indent:25px">燃燒滴落物/微粒。在燃燒試驗(yàn)過程中,從試樣上分離的物質(zhì)或微粒。臨界熱輻射通量?；鹧嫦缣幍臒彷椛渫炕蛟囼?yàn)30 min時(shí)火焰?zhèn)鞑サ降妮^遠(yuǎn)處的熱輻射通量。燃燒增長(zhǎng)速率指數(shù)( FIGRA )。試樣燃燒的熱釋放速率值與其對(duì)應(yīng)時(shí)間比值的較大值，用于燃燒性能分級(jí)。FIGRA0.2MJ是指當(dāng)試樣燃燒釋放熱量達(dá)到0.2 MJ時(shí)的燃燒增長(zhǎng)速率指數(shù)。FIGRA0.4MJ是指當(dāng)試樣燃燒釋放熱量達(dá)到0.4 MJ時(shí)的燃燒增長(zhǎng)速率指數(shù)。建筑材料及制品燃燒性能等級(jí)附加信息包括產(chǎn)煙特性、燃燒滴落物/微粒等級(jí)和煙氣毒性等級(jí)。對(duì)于A2級(jí)、 B級(jí)和C級(jí)建筑材料及制品應(yīng)給出產(chǎn)煙特性等級(jí)、燃燒滴落物/微粒等級(jí) (鋪地材料除外)、煙氣毒性等級(jí);對(duì)于D級(jí)建筑材料及制品應(yīng)給出產(chǎn)煙特性等級(jí)、燃燒滴落物/微粒等級(jí)。</p><p style="text-indent:25px">垂直燃燒試驗(yàn)具體測(cè)試方法試驗(yàn)裝置，試驗(yàn)是在內(nèi)部尺寸為 329mm×329mm×780mm 的燃燒箱內(nèi)進(jìn)行。燃燒箱頂部開有直徑150mm 的排氣孔，為防止外界氣流對(duì)試驗(yàn)的影響，在距箱頂 25mm 處加一塊頂板，燃燒箱右側(cè)裝有試件夾支座，并達(dá)到試件固定后能處于燃燒箱中心位置。箱體左側(cè)裝有向上傾斜 45 度的本生燈一個(gè)。固定在控制箱的水平滑道上。箱體下部放置一個(gè)放脫脂棉的支架。其他備用的還有秒表及卡尺。試件每組試樣需 5 個(gè)試件，要求平整光滑無(wú)氣泡。長(zhǎng) 130±3mm,寬 13.0±0.3mm.厚 3.0±0.2mm。制好的試件應(yīng)在標(biāo)準(zhǔn)氣候條件下調(diào)節(jié) 48 小時(shí)。試驗(yàn)步驟試件垂直固定在實(shí)件夾上，試件上端夾住部分為 6mm.放好脫脂棉。在距試件 150mm 處點(diǎn)燃本生燈，調(diào)節(jié)火焰高度為 20±2mm，并呈藍(lán)色火焰。將本生燈中心置于試件下端10mm 位置，火焰對(duì)準(zhǔn)試件下端中心部分。燃燒性能檢測(cè)時(shí)要避免極端的環(huán)境。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376060244140/351381.png"></div><p style="text-indent:25px">材料燃燒時(shí)的生煙性是二次火效應(yīng)。二次火效應(yīng)是指那些與火災(zāi)伴生的、但并不構(gòu)成為火焰所顯示的燃燒過程的現(xiàn)象。測(cè)定生煙性的方法較好是基于人眼對(duì)煙的感知和煙對(duì)可見度的影響。已有的測(cè)定煙密度的方法較多，較經(jīng)常使用的還是光學(xué)法，此法是在一規(guī)定空間內(nèi)建立一個(gè)模型火試驗(yàn)，然后測(cè)定生成的煙對(duì)光束的衰減，以計(jì)得煙密度。如NBS煙箱采用的就是光學(xué)法測(cè)定煙密度。當(dāng)光線透過一個(gè)充滿煙塵的空間時(shí)，由于煙質(zhì)點(diǎn)的吸收和散射，使光的強(qiáng)度降低。光衰減的程度與煙質(zhì)點(diǎn)的大小和形狀、折射率及光的波長(zhǎng)和入射角有關(guān)。目前的光學(xué)法測(cè)定煙密度的儀器，都是依據(jù)Beer‐Lambert定律。燃燒性能是針對(duì)材料本身特性而言的，材料燃燒性能分為四級(jí)：A級(jí)不燃、B1級(jí)難燃、B2級(jí)可燃、B3級(jí)易燃。優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算</p><p style="text-indent:25px">燃燒性能檢測(cè)設(shè)備是一款可以控制溫度的設(shè)備。優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算</p><p style="text-indent:25px">A級(jí)材料是指不燃材料（制品），在空氣中遇明火或高溫作用下不起火、不微燃、不碳化，如大理石、玻璃、鋼材、混凝土石膏板、鋁塑板、金屬?gòu)?fù)合板等。B?級(jí)材料是指難燃材料（制品），在空氣中遇明火或高溫作用下難起火、難微燃、難碳化，如水泥刨花板、礦棉板、難燃木材、難燃膠合板、難燃聚氯乙烯塑料、硬PVC塑料地板等。B?級(jí)材料是指普通可燃材料（制品），在空氣中遇明火或高溫作用下會(huì)立即起火或發(fā)生微燃，火源移開后繼續(xù)保持燃燒或微燃，如天然木材、膠合板、人造革、墻布、半硬質(zhì)PVC塑料地板等。B?級(jí)材料是指易燃材料（制品），在空氣中很容易被低能量的火源或電焊渣等點(diǎn)燃，火焰?zhèn)鞑ニ俣葮O快。優(yōu)勢(shì)燃燒性能檢測(cè)費(fèi)用怎么算</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2884604.html</p></div></div></div></div></div><div id="dct2wya" class="page-right twoColRt"><div id="7xebxe3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="aubd7tq" class="recomPic likePro"><a href="http://www.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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