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href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="hgfkjin" class="twoCol"><div id="optzyxr" class="page-proshow clearfix"><p class="current"> 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/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_drsb/">電熱設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-drsb_redianou/">熱電偶</a>?福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格鄒平奧翔硅碳供應(yīng)</p><div id="vver6za" class="leftbox clearfix"><h1>福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格鄒平奧翔硅碳供應(yīng)</h1><div id="gxixroy" class="proBig"><div id="yfmvx4k" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qrgau7e" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gveotxx" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格</p><p><span>***更新：</span>2020-06-07 00:13:24</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="ud3o66f" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">鄒平縣奧翔硅碳制品有限公司</a></p><p><span>聯(lián)系人：</span>張洪恩</p><p><span>郵箱: </span>13884861614@163.com</p><p><span>電話: </span>13884861614</p><p><span>傳真: </span>0543_4534117</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0543-4533667</p><p><span>地址: </span>山東省鄒平市臨池鎮(zhèn)望京村</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="laauaat" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="h7sup33" class="box"><p><p style="text-indent:25px"> 氮化硅結(jié)合碳化硅添加不同助劑時(shí)的外貌變化：在添加不同的燒結(jié)助劑對(duì)氮化硅結(jié)合碳化硅樣品的主要物相為SiC和Si3N4，我們?nèi)追N樣品進(jìn)行實(shí)驗(yàn)，首先樣品A和樣品C主要含有α-Si3N4，樣品B主要含有β-Si3N4，α-Si3N4呈針狀，β-Si3N4呈棒狀；樣品C中α-Si3N4特征峰強(qiáng)度較樣品A而言更強(qiáng)；圖譜中出現(xiàn)的Si5AlON7、Y2Si2O7的衍射峰，說(shuō)明燒結(jié)助劑在燒結(jié)過(guò)程中與Si3N4或SiO2發(fā)生反應(yīng)。經(jīng)過(guò)試驗(yàn)我們看樣品的SEM照片得出以下結(jié)論(A)Si3N4晶須呈棉絮狀含量較少，福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格，福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格，福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格，主要附著在SiC顆粒表面；(B)樣品Si3N4晶須呈長(zhǎng)棒狀多為β-Si3N4，主要嵌插在碳化硅顆粒間表面粗糙；(C)Si3N4晶須呈針狀，分布在表面和孔隙間。以上闡述是氮化硅結(jié)合碳化硅在添加不同燒結(jié)助劑時(shí)的物相以及在顯微鏡下的形狀樣貌。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg"></div><p> 氮化硅結(jié)合碳化硅輻射管是用作保護(hù)硅碳棒等加熱元件的管子，因?yàn)槭且欢朔饪诘?，所以元件只能采用U型，槽型或雙螺紋硅碳棒，輻射管的直徑隨元件的間距而定，保護(hù)管直徑比較大能做到600mm，長(zhǎng)度可以做到3000mm。氮化硅輻射管有純氮化硅輻射管與氮化硅結(jié)合碳化硅輻射管，由于純氮化硅輻射管代價(jià)太高，一般用的都是氮化硅結(jié)合碳化硅管子。氮化硅結(jié)合碳化硅輻射管主要有兩種產(chǎn)品，一種為一端封口的，另一種為兩端都是開(kāi)口的，都用于鋁制品鑄造行業(yè)，一端封口的方式管根據(jù)形狀又可分為平底與圓底兩種，使用方式與使用壽命基本一樣。由于它具有導(dǎo)熱性優(yōu)越，管壁薄，傳熱效率高，抗熔融金屬侵蝕能力強(qiáng)，耐腐蝕性好，對(duì)金屬溶液沒(méi)污染，熱膨脹系數(shù)低，不掉渣，不開(kāi)裂，耐高溫（比較高使用溫度1750℃），結(jié)構(gòu)簡(jiǎn)單，安裝方便，易于維護(hù)等特點(diǎn)，氮化硅結(jié)合碳化硅輻射管被廣泛應(yīng)用與有色金屬鑄造行業(yè)。一端封口的管子在鋁制品行業(yè)使用中起到隔絕鋁液與元件的接觸，對(duì)硅碳棒起到很好的保護(hù)作用，所以又叫做硅碳棒保護(hù)管或硅碳棒保護(hù)套。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242635286_zbwuzi_7922021.jpg"></div><p> 氮化硅結(jié)合碳化硅在氮化爐中燒制時(shí)，我們對(duì)氮化硅材料氮化燒結(jié)環(huán)境下的研究認(rèn)為在燒成反應(yīng)中存在著間接反應(yīng)和直接反應(yīng)。在反應(yīng)中，作為反應(yīng)的參與者，N2的分壓起著極為重要的作用，但不論氮分壓的大小如何，只要生產(chǎn)Si3N4，那么在坯體內(nèi)就存在著N2的濃度梯度和生成Si3N4的濃度梯度，而且這種濃度梯度的方向是相同的，越是接近坯體表面其兩個(gè)組分的濃度越高。要想反應(yīng)不斷向坯體內(nèi)部推進(jìn)就必須確保合適的氮分壓和反應(yīng)溫度。在純Si3N4的氮化燒結(jié)中，通常會(huì)發(fā)生“流硅”反應(yīng)而使氮化反應(yīng)受到影響，這是因?yàn)榈磻?yīng)是一個(gè)放熱反應(yīng)，為使反應(yīng)完全又將Si粉的粒徑控制在很小范圍內(nèi)，這樣在氮化過(guò)程中若控制不當(dāng)時(shí)，供給熱量和生成熱量疊加而使溫度達(dá)到了硅的熔點(diǎn)使Si粉熔化而產(chǎn)生所謂的“流硅”現(xiàn)象。在氮化硅結(jié)合碳化硅的氮化燒結(jié)中，Si粉的濃度含量相對(duì)較低，而濃度較高的SiC又有著較大的導(dǎo)熱率從而了“流硅”現(xiàn)象的發(fā)生。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建鋁行業(yè)碳化硅結(jié)合氮化硅價(jià)格" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242478978_zbwuzi_7595535.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/169977.html</p></div></div></div></div></div><div id="slbvsc7" class="page-right twoColRt"><div 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