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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>淄博燃燒性能檢測(cè)哪家好,燃燒性能檢測(cè)</p><p><span>***更新：</span>2021-01-29 05:15:37</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="zxxfbfb" 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="jdzh335" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dfvbl7n" class="box"><p><p style="text-indent:25px">氧指數(shù)簡(jiǎn)稱OI，是在規(guī)定條件下，試樣在氧、氮混合氣流中，維持平穩(wěn)燃燒所需的較低氧氣濃度，以氧所占體積百分?jǐn)?shù)表示。氧指數(shù)高表示材料不易燃燒，氧指數(shù)低表示材料容易燃燒，一般認(rèn)為氧指數(shù)＜22屬于易燃材料，氧指數(shù)在22～27之間屬可燃材料，氧指數(shù)＞27屬難燃材料。氧指數(shù)是評(píng)價(jià)塑料及其他高分子材料相對(duì)燃燒性的一種表示方法，以此判斷材料在空氣中與火焰接觸時(shí)燃燒的難易程度，氧指數(shù)越大,材料的阻燃性能越好。將一個(gè)試樣垂直地固定在向上流動(dòng)的氧、氮混合氣體的透明玻璃燃燒筒中，點(diǎn)燃試樣的頂端，淄博燃燒性能檢測(cè)哪家好，并觀察試樣的燃燒特性，把試驗(yàn)連續(xù)燃燒時(shí)間或試樣燃燒強(qiáng)度與給定的判據(jù)相比較，通過在不同氧濃度下的一系列試驗(yàn)，淄博燃燒性能檢測(cè)哪家好，估算氧濃度的較小值，淄博燃燒性能檢測(cè)哪家好。燃燒性能檢測(cè)設(shè)備的性能高，卻能耗低。淄博燃燒性能檢測(cè)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博燃燒性能檢測(cè)哪家好,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376083867187/7161532.png"></div><p style="text-indent:25px">燃燒產(chǎn)物毒性及腐蝕性很多有機(jī)材料燃燒后都會(huì)產(chǎn)生毒性氣體和腐蝕性的物質(zhì)。ISO制定的ISO 11907-2標(biāo)準(zhǔn)采用靜態(tài)法、ASTM D5485采用錐形量熱儀法測(cè)定材料燃燒產(chǎn)物的腐蝕性，法國(guó)則是采用CNET法測(cè)定材料燃燒后在真實(shí)條件下對(duì)材料的直接腐蝕作用。測(cè)定材料的產(chǎn)煙毒性通常有化學(xué)法和生物法兩類，其中美國(guó)匹茲堡、德國(guó)DIN 53436以及GB/T 20285都是采用的生物試驗(yàn)法，ASTM 28000、BS 7239、中國(guó)的HB 7066和HB 7068.4采用的是化學(xué)分析法。耐燃性方法主要用干測(cè)定建筑構(gòu)件的耐火性能，適用于承重和非承重的墻、樓板和水平屋頂、梁、柱等構(gòu)件，ISO 834和GB/T 9978等標(biāo)準(zhǔn)都是采用該方法。淄博燃燒性能檢測(cè)哪家好燃燒性能檢測(cè)在開始前要檢查工具的狀態(tài)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博燃燒性能檢測(cè)哪家好,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376075507812/9573497.png"></div><p style="text-indent:25px">生煙性試驗(yàn)，如煙箱試驗(yàn)和煙塵質(zhì)量試驗(yàn)：是要測(cè)定材料燃燒時(shí)的生煙量；有毒及腐蝕性實(shí)驗(yàn)，如生物試驗(yàn)和化學(xué)分析法：要測(cè)定材料燃燒時(shí)火災(zāi)氣體的毒性和腐蝕性，以了解材料對(duì)生物及設(shè)備的危害性；耐火性試驗(yàn)，如電視整機(jī)或建筑部件耐火性試驗(yàn)：是為了了解某種材料構(gòu)筑成的建筑物或建筑物的一部分（如墻、地板，天花板）或其他制品，在強(qiáng)熱及火焰的作用下所能經(jīng)受的時(shí)間，即它們?cè)诨鹬械顾蚱茐幕蛉急M所需的時(shí)間。阻燃性能測(cè)試方法依據(jù)不同材料（如建材、電纜、塑料、電子電氣等）、不同行業(yè)（如飛機(jī)、家具、機(jī)車、船艦等）、不同的標(biāo)準(zhǔn)（如ISO、ASTM、UL、BS、EN、IEC、GB），在試驗(yàn)方法、試驗(yàn)要求上有所不同。所有阻燃性測(cè)試的方法在相應(yīng)的標(biāo)準(zhǔn)內(nèi)均有闡述，由于涉及的測(cè)試方法較多，本文*就較重要的幾個(gè)阻燃參數(shù)和常用的測(cè)試方法進(jìn)行介紹?？扇夹栽囼?yàn)可燃性是指材料進(jìn)行有焰燃燒的能力。很多現(xiàn)在采用的材料可燃性的測(cè)定方法系基于將特定火焰施加于材料所產(chǎn)生的結(jié)果。所用火焰的類型、大小、施加于試樣的時(shí)間以及試樣的尺寸、形狀及放置方向等，在不同的試驗(yàn)中可有所不同，且均在測(cè)試方法或標(biāo)準(zhǔn)中有詳細(xì)的規(guī)定。</p><p style="text-indent:25px">汽車內(nèi)飾件原本只是汽車的部分零部件，但隨著人們對(duì)舒適性和功能性的追求，這部分零部件不光只有裝飾作用，同時(shí)也涉及到功能性、安全性、以及工程屬性等方面的內(nèi)容。在汽車行駛過程中，由于電路短路、機(jī)械故障、交通事故等原因，造成意外起火，這些材料的燃燒可能對(duì)人體造成較大的損傷。因此，在進(jìn)行材料選擇時(shí)，材料的使用前提是保護(hù)乘駕員的生命安全。為了降低發(fā)生意外起火時(shí)造成的傷害，汽車內(nèi)飾材料大多選取燃點(diǎn)高、甚至有阻燃功能的防火材料。汽車內(nèi)飾材料的阻燃整理對(duì)提高汽車安全性具有重要的現(xiàn)實(shí)意義。當(dāng)發(fā)生意外時(shí)，燃點(diǎn)高甚至阻燃的汽車內(nèi)飾，能有效增加駕駛員逃生幾率。建筑構(gòu)件的燃燒性能取決于組成建筑構(gòu)件材料的燃燒性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淄博燃燒性能檢測(cè)哪家好,燃燒性能檢測(cè)" src="https://tyunfile.71360.com/UploadFile/shhhjc/637342376045947265/281170.png"></div><p style="text-indent:25px">在低頻范圍，煤粉與油有火與無火之間閃爍強(qiáng)度的差異都很小；煤粉有火與無火之間輻射強(qiáng)度較大差異處的閃爍頻率約300Hz，油有火與無火之間區(qū)別都要在較高的頻率才能較好地實(shí)現(xiàn)檢測(cè)。閃爍頻率與輻射強(qiáng)度之間的關(guān)系取決于燃燒器結(jié)構(gòu)布置、檢測(cè)方法、燃料種類、燃燒器的運(yùn)行條件(如燃料與空氣比、一次風(fēng)速)、以及觀察角度等因素。一般來說：火焰閃爍頻率在火焰的初始燃燒器較高，然后向燃燼區(qū)依次降低，檢測(cè)器距火焰初始燃燒區(qū)越近，檢測(cè)到的高頻成分(100—400Hz)越強(qiáng)；檢測(cè)器探頭視角越狹窄，所檢測(cè)到的火焰信號(hào)越真實(shí)；反之亦然?？梢酝茢?，全爐膛監(jiān)視的閃爍頻率要比單只燃燒器監(jiān)視的頻率低得多。燃燒性能檢測(cè)的流程要遵守規(guī)范。石景山區(qū)燃燒性能檢測(cè)服務(wù)</p><p style="text-indent:25px">燃燒性能檢測(cè)的檢測(cè)方式有很多種。淄博燃燒性能檢測(cè)哪家好</p><p style="text-indent:25px">材料阻燃性能測(cè)試方法根據(jù)試件大小可分為：實(shí)驗(yàn)室試驗(yàn)、中型試驗(yàn)及大型試驗(yàn)。其中實(shí)驗(yàn)室試驗(yàn)和中型試驗(yàn)較為常用，這兩類試驗(yàn)，通常根據(jù)被測(cè)物體的可燃性、點(diǎn)燃性、火焰?zhèn)鞑?、釋熱及生煙性、火?zāi)氣體的毒性及腐蝕性等，對(duì)引發(fā)火災(zāi)具有決定性影響的參量將試驗(yàn)分為6類：可燃性試驗(yàn)，如極限氧指數(shù)：是要測(cè)定火是否易于引起；火焰?zhèn)鞑バ栽囼?yàn)，如隧道試驗(yàn)和輻射板試驗(yàn)：是要測(cè)定火是否易于蔓延和火傳播速率；釋熱性試驗(yàn)，錐形量熱儀和量熱計(jì)試驗(yàn)：是要測(cè)定材料燃燒時(shí)的放熱量及放熱速率，以了解火的發(fā)展趨勢(shì)及火對(duì)鄰近地區(qū)的危險(xiǎn)。淄博燃燒性能檢測(cè)哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3059962.html</p></div></div></div></div></div><div id="lxtxljp" class="page-right twoColRt"><div id="bhd3djz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hxfbx3j" 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" 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