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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="uikmolc" 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="imzbipw" 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>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>重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格,碳化硅結(jié)合氮化硅</p><p><span>***更新：</span>2020-08-15 06:00:55</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="ptldfwd" 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="jiaszgx" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="uiphoqx" class="box"><p><p style="text-indent:25px"> 氮化硅結(jié)合碳化硅添加不同助劑時的外貌變化：在添加不同的燒結(jié)助劑對氮化硅結(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，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，說明燒結(jié)助劑在燒結(jié)過程中與Si3N4或SiO2發(fā)生反應(yīng)，重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格，重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格。經(jīng)過試驗我們看樣品的SEM照片得出以下結(jié)論(A)Si3N4晶須呈棉絮狀含量較少，重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格，主要附著在SiC顆粒表面；(B)樣品Si3N4晶須呈長棒狀多為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)助劑時的物相以及在顯微鏡下的形狀樣貌。奧翔硅碳品質(zhì)好、服務(wù)好、客戶滿意度高。重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格,碳化硅結(jié)合氮化硅" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg"></div><p> 氮化硅結(jié)合碳化硅制品的原料混煉成型后在氮化爐中高溫1400℃左右進(jìn)行燒制，**終產(chǎn)品的質(zhì)量和性能與氮化反應(yīng)的溫度有著緊密關(guān)系。在硅粉與氮?dú)獍l(fā)生反應(yīng)的過程中，大致經(jīng)歷兩個溫度段：首先是升溫階段，然后是原料的氮化反應(yīng)階段。其中升溫階段裝置內(nèi)的溫度由初始溫度升高至1100℃左右，而原料氮化反應(yīng)階段的溫度在1100～1350℃。氮化硅結(jié)合碳化硅的干燥制度影響，干燥工序中溫度和時間對產(chǎn)品質(zhì)量有較大影響。溫度過低或時間過短，都會導(dǎo)致胚體中殘留水分，在后續(xù)的氮化反應(yīng)過程中誘發(fā)硅粉的氧化反應(yīng)，從而降低氮化反應(yīng)效率，影響產(chǎn)品質(zhì)量。溫度升高的快慢也會對產(chǎn)品質(zhì)量造成影響。溫度升高太快不利于對高溫環(huán)境進(jìn)行控制，過高的溫度會造成胚體表面出現(xiàn)裂紋。氮化工序之前的裝窯方式可能對質(zhì)量造成影響的因素是胚體之間的縫隙間隔。胚體之間應(yīng)留有一定的空間，為氮?dú)獾捻槙碀B透填充提供有利條件，避免出現(xiàn)因裝窯總量過多導(dǎo)致流硅現(xiàn)象。氮化硅結(jié)合碳化硅制品的成型工藝主要有半干法成型和注漿成型兩大類。其中半干法成型因生產(chǎn)效率較高的優(yōu)勢應(yīng)用更加普遍。國內(nèi)主要采用的是注漿法成型，這就要求漿料性能一定要好，決定漿料好壞的因素有很多。重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格奧翔硅碳具備雄厚的實(shí)力和豐富的實(shí)踐經(jīng)驗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格,碳化硅結(jié)合氮化硅" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242947902_zbwuzi_2449633.jpg"></div><p> 坯體的體積密度會直接影響到氮化質(zhì)量。氮化硅結(jié)合碳化硅制品生產(chǎn)工藝中，需要加入臨時的結(jié)合劑，結(jié)合劑的加入主要有兩大功效，一是可以幫助原料之間融合實(shí)現(xiàn)均質(zhì)體，改善原料顆粒表面的分散性，為胚體成型創(chuàng)建良好的條件；二是氮化硅結(jié)合碳化硅制品在干燥和燒成的工序中要面臨升溫的過程，而在高溫條件下，氮化硅結(jié)合碳化硅制品中的臨時結(jié)合劑會分解，氣態(tài)物質(zhì)揮發(fā)過程中給氮化硅結(jié)合碳化硅制品留下大量的網(wǎng)絡(luò)狀氣孔通道，不僅更有利于氮?dú)獾某淙耄岣吡斯璺酆偷獨(dú)庵g的反應(yīng)效率，而且也能夠更有利于**終產(chǎn)品的穩(wěn)定性。臨時結(jié)合劑主要有：有機(jī)糊精、木質(zhì)素磺酸鈣以及德國司馬化工分散劑等等，目前行業(yè)內(nèi)對于臨時結(jié)合劑的添加量質(zhì)量百分比通常在5%以內(nèi)。氮化硅結(jié)合碳化硅制品涉及到的主要生產(chǎn)原料有：碳化硅、硅粉、氮?dú)獾忍砑觿?。不同于普通的氮化硅材料制品，氮化硅結(jié)合碳化硅制品所需要的原料必須具有更高的純度。碳化硅的純度應(yīng)達(dá)到，硅粉的純度應(yīng)達(dá)到99%以上，氮?dú)獾募兌葢?yīng)達(dá)到。除了原料的純度需要進(jìn)行嚴(yán)格的控制之外，生產(chǎn)加工過程中還需要對原料的粒度和顆粒級配進(jìn)行嚴(yán)格的控制。原料的粒度過高將會直接影響胚體成型的體積密度，造成胚體的致密性降低。</p><p style="text-indent:25px">生產(chǎn)氮化硅結(jié)合碳化硅制品時候溫速度太快，造成坯體表面沉積的碳素不能被排除，嚴(yán)重者還會引起坯體表面隆起小泡。解決措施是： 1)制定合理的燒成溫度曲線，保證窯爐內(nèi)升溫速度符合坯體各階段所需要的熱量。 2)控制加煤量，保溫階段縮短還原氣氛的時間，加強(qiáng)坯體的前期氧化。 3)合理調(diào)試窯爐小閘板的開度，達(dá)到窯爐處于一個三種制度相互協(xié)調(diào)的平衡點(diǎn)。 4)燒窯工操作的控制，雖然窯爐設(shè)備的調(diào)試達(dá)到了比較好點(diǎn)，但三種制度都是通過操作來實(shí)現(xiàn)的。暗點(diǎn)就是分布于產(chǎn)品表面的黑、灰色小顆粒狀暗點(diǎn)。從表面看暗點(diǎn)與煙熏相伴而生，但又不同于煙熏，而且較煙熏難于控制。暗點(diǎn)缺點(diǎn)無論在煤燒隧道窯還是在燃?xì)馑淼栏G都有不同程度的發(fā)生。分析這種缺點(diǎn)的原因（排除泥、釉料配方的因素）：一是因為前期氧化氣氛不足；二是燒成溫度沒能達(dá)到瓷化所需要的溫度。奧翔硅碳愿與各界朋友攜手共進(jìn)，共創(chuàng)未來！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格,碳化硅結(jié)合氮化硅" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112548828/9992145.jpg"></div><p> 但還是有簡單普及一下的必要的，氮化硅結(jié)合碳化硅材料是以SiC和Si為主要組分，并加入添加劑制成試樣，在氮化爐中輸入純度為，在合適的燒成制度下試樣氮化燒結(jié)成為氮化硅結(jié)合碳化硅材料。的研究表明經(jīng)過對試樣的顯微結(jié)構(gòu)分析和反應(yīng)熱力學(xué)分析，該材料中的Si3N4是以纖維狀和柱狀兩種形態(tài)存在，認(rèn)為Si的氮化是由于N2達(dá)不到的純凈，其中有少量O2存在，裝窯過程是在日常環(huán)境下進(jìn)行，然后再抽真空并注入N2置換，爐內(nèi)呈微正壓狀態(tài)。由于窯爐難以做到完全的封閉，所以在窯爐升溫過程中Si首先被氧化成為SiO，降低了體系中的氧分壓，當(dāng)氧分壓足夠低時，Si與N2直接形成柱狀Si3N4，氣態(tài)SiO亦可與N2反應(yīng)生成Si3N4，這是一個氣-氣反應(yīng)，故生成的Si3N4為纖維狀。氮化反應(yīng)前SiO主要分布于材料孔隙和表面，因此生成的Si3N4分布不均勻，導(dǎo)致了氮化硅結(jié)合碳化硅材料制品從表面到內(nèi)部的結(jié)構(gòu)不均勻。氮化硅結(jié)合碳化硅材料強(qiáng)度大,抗熱震、導(dǎo)熱性好。因此，可制作大、薄型類棚板，這樣可有效的延長窯具使用壽命，減少耐火材料與制品的比例，節(jié)約能耗。另外,和同面積的其他材料窯具相比，其單位價格也占有優(yōu)勢。比如咸陽陶瓷研究設(shè)計院生產(chǎn)的520mm×500mm的氮化硅結(jié)合碳化硅棚板厚度10-12mm。奧翔硅碳以質(zhì)量求生存，以信譽(yù)求發(fā)展！重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格</p><p style="text-indent:25px">奧翔硅碳設(shè)備的引進(jìn)更加豐富了公司的設(shè)備品種，為用戶提供了更多的選擇空間。重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格</p><p style="text-indent:25px">氮化硅結(jié)合碳化硅燒制時出現(xiàn)的暗點(diǎn)需要進(jìn)一步的改善，先從燒窯工操作上控制煙熏、暗點(diǎn)缺點(diǎn)。煤燒隧道窯的操作受燒窯工的影響因素比較大： l.接班前檢查窯內(nèi)溫度、煤質(zhì)、設(shè)備及窯爐的燃燒情況。 2.加煤前先拌水，煤的含水率為 25 ％- 30 ％。 3.加煤要均勻，四周封嚴(yán)，火層角度和爐棚基本一致，交叉加煤。 4.根據(jù)氣氛變化和排煙風(fēng)機(jī)負(fù)壓表的監(jiān)測情況，隨時調(diào)整主閘板開度，保證窯內(nèi)壓力制度平衡。 5.加煤前觀察窯內(nèi)火色，火苗高度兩側(cè)達(dá)到一致，窯內(nèi)凈火后加煤。 6.四人操作要統(tǒng)一，操作要迅速。 7.隨時觀察窯內(nèi)溫度變化情況，加煤前觀察各燒成帶溫度表是否達(dá)到規(guī)定標(biāo)準(zhǔn)。根據(jù)煤質(zhì)和溫度情況掌握灰層、火層厚度，質(zhì)量煤是厚灰層薄火層，劣質(zhì)煤是薄灰層厚火層。 8.清理爐內(nèi)灰渣前應(yīng)檢查爐子，火層不能過厚，清理爐內(nèi)灰渣以露出火炭為宜，不能太重，擺正爐條，保溫時要使火層四角落地，不露窟窿，窯爐分清火層、煤層、灰層。交叉清理爐內(nèi)灰渣。以上幾點(diǎn)是改善氮化硅結(jié)合碳化硅燒制時煙熏、暗點(diǎn)是否減少應(yīng)注意的幾點(diǎn)。重慶鋁行業(yè)碳化硅結(jié)合氮化硅價格</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司坐落山東省鄒平市臨池鎮(zhèn)望京村，交通便利，環(huán)境優(yōu)美，是一家生產(chǎn)型企業(yè)。是一家有限責(zé)任公司企業(yè)，隨著市場的發(fā)展和生產(chǎn)的需求，與多家企業(yè)合作研究，在原有產(chǎn)品的基礎(chǔ)上經(jīng)過不斷改進(jìn)，追求新型，在強(qiáng)化內(nèi)部管理，完善結(jié)構(gòu)調(diào)整的同時，優(yōu)良的質(zhì)量、合理的價格、完善的服務(wù)，在業(yè)界受到***好評。公司始終堅持客戶需求***的原則，致力于提供高質(zhì)量的[ "硅碳棒廠家", "碳化硅保護(hù)管", "熱電偶保護(hù)管", "碳化硅結(jié)合氮化硅" 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