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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="uno8xyr" class="twoCol"><div id="zxdgw8s" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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>?黑龍江電廠碳化硅結(jié)合氮化硅零售鄒平奧翔硅碳供應(yīng)</p><div id="g8eccd3" class="leftbox clearfix"><h1>黑龍江電廠碳化硅結(jié)合氮化硅零售鄒平奧翔硅碳供應(yīng)</h1><div id="cvhduaj" class="proBig"><div id="f2x8bs3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112460937/3217750.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="n73vwxl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112460937/3217750.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cvbne3j" 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>黑龍江電廠碳化硅結(jié)合氮化硅零售</p><p><span>***更新：</span>2020-06-20 12:23:27</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="em2p8t8" 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="8mdp3o9" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jwcyhhs" class="box"><p><p> 首先Si3N4在水蒸氣的作用下抗氧化能力會明顯減弱：在800℃以上水蒸氣就能開始分解Si3N4由于氮化硅結(jié)合碳化硅磚具有良好的熱導(dǎo)性，高溫下暴露于空氣中會縮短其使用周期．因此作為出鐵口必須用鋼板比較大限度地密封；其次是坯體的厚度不能過厚，過厚氮化不透或不均勻，抗氧化和強(qiáng)度都會下降，影響整體壽命。氮化硅結(jié)合碳化硅磚的破壞主要是SiC被破壞為主，其含量約占70％～75％，在1100℃時就會與Fe發(fā)生反應(yīng)，從而受到破壞，具體反應(yīng)式如下：SiC+Fe=FeSi+C雖然反應(yīng)進(jìn)行的開始溫度低，但是FeSi的熔點(diǎn)為1410℃在錳硅合金的生產(chǎn)中液態(tài)錳硅合金溫度約在1500～1550℃之間，而在爐墻四周溫度很難達(dá)到該溫度，因此SiC的破壞是一個非常緩慢的過程，所以打爐時四周存在明顯的SiC層。氮化硅是很難被破壞的，而且在1200℃以下幾乎不會被氧化，黑龍江電廠碳化硅結(jié)合氮化硅零售，但在1410℃以上時會被鎂、鎳鉻合金、不銹鋼溶液等溶液所腐蝕，黑龍江電廠碳化硅結(jié)合氮化硅零售，黑龍江電廠碳化硅結(jié)合氮化硅零售，因此有氮化硅的存在，氮化硅結(jié)合碳化硅磚耐極寒極熱的能力變得很強(qiáng)氮化硅結(jié)合碳化硅磚中的Si3N4在水蒸氣的作用下抗氧化能力會明顯減弱，在800℃以上水蒸氣就能開始分解Si3N4，且在用氧氣吹開出鐵口過程中氮化硅結(jié)合碳化硅磚會發(fā)生高溫熔損。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江電廠碳化硅結(jié)合氮化硅零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112460937/3217750.jpg"></div><p> 尤其是在使用初期更易熔損為了有效地阻礙H20、Fe、O2等對氮化硅結(jié)合碳化硅磚出鐵口的破壞，首先必須選擇無水泥球并利用開堵眼機(jī)進(jìn)行開眼和堵眼，無水炮泥在出鐵口的高溫作用下能產(chǎn)生自我燒結(jié)成型作用，起到良好的自我封堵效果，既保護(hù)了氮化硅結(jié)合碳化硅磚又能穩(wěn)定出鐵口的深度，確保出鐵排渣順暢，延長出鐵口使用周期；其次是減少吹氧出鐵，如果要進(jìn)行吹氧出鐵也要先用開眼機(jī)把爐眼鉆到一定深度(至少30cm以上)后再進(jìn)行吹氧；再次是杜絕水淋及水冷爐眼，在使用氮化硅結(jié)合碳化硅磚出鐵口后且使用開堵眼機(jī)杜絕了有水堵爐眼，從而杜絕了水淋水冷爐眼的壞習(xí)慣。促使?fàn)t眼磚使用壽命達(dá)到3年往上。影響氮化硅結(jié)合碳化硅制品質(zhì)量的因素有哪些？：隨著碳化硅產(chǎn)業(yè)的不斷發(fā)展，其制備工藝也越來越復(fù)雜，性能更加綜合化和優(yōu)越化。在氮化硅結(jié)合碳化硅制備工藝過程中，如何對影響產(chǎn)品質(zhì)量的因素進(jìn)行控制，繼而確保**終產(chǎn)品的性能，對于生產(chǎn)企業(yè)實現(xiàn)質(zhì)量控制目標(biāo)是至關(guān)重要的。文章就這一相關(guān)議題進(jìn)行了探討，分別從產(chǎn)品原料的性質(zhì)方面、結(jié)合劑方面、不同的成型工藝方面、干燥流程、裝窯方式以及氮化工藝流程等方面進(jìn)行了分析和論述，供行業(yè)人士參考。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江電廠碳化硅結(jié)合氮化硅零售" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242947902_zbwuzi_2449633.jpg"></div><p> 這樣的一種循環(huán)工藝操作以表象上的準(zhǔn)靜態(tài)、實質(zhì)上連續(xù)的動態(tài)平衡可使氮化反應(yīng)高速進(jìn)行。我們說了幾點(diǎn)有關(guān)氮化硅結(jié)合碳化硅制品氮化燒結(jié)的主要影響因素，簡單說一下氮化硅結(jié)合碳化硅在氮化燒結(jié)過程是氮化硅及其復(fù)合材料生產(chǎn)的技術(shù)關(guān)鍵，經(jīng)過對氮化硅生成機(jī)理的研究，我們確定了產(chǎn)品燒成制度中的氮壓控制燒成工藝方法。從上述的機(jī)理表述中我們知道氮化硅生成過程是一個放熱反應(yīng)過程，如果單純從窯爐的外顯溫度控制，就可能在某一溫度點(diǎn)使硅融化而堵塞向制品深層氮化的通道，加大了由表及里的氮化率梯度，所以我們通過對窯爐內(nèi)氮?dú)夥謮旱目刂?，來實現(xiàn)對反應(yīng)速度的控制，可以得到制品從外到里氮化率梯度趨近于零的結(jié)果。氮化硅結(jié)合碳化硅制品氮化燒結(jié)的主要影響因素是氮化反應(yīng)的時間，而兩級保溫之間的溫度大小和氮化燒結(jié)**終溫度的高低使這兩個因子對試樣增重率的影響相對較大。經(jīng)過我們試驗分析對在氮化硅結(jié)合碳化硅材料的氮化燒結(jié)過程中有以下幾點(diǎn)：1.適當(dāng)提高反應(yīng)起始溫度，加速初始氮化反應(yīng)，不會造成“流硅”現(xiàn)象。2.在反應(yīng)中溫區(qū)，可適當(dāng)加大兩級保溫之間的溫差，加速中溫區(qū)的反應(yīng)速率。3.比較高燒成溫度可在較大的范圍內(nèi)波動，不像液相燒結(jié)陶瓷制品時那么嚴(yán)格。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/325709.html</p></div></div></div></div></div><div id="j25rfvg" class="page-right 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