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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403314234119_zbwuzi_9705864.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="uyhdzqc" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403314234119_zbwuzi_9705864.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ckbxoua" 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)品關鍵詞：</span>內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷,碳化硅結合氮化硅</p><p><span>***更新：</span>2020-06-14 04:10:59</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="an3y3nl" 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: </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="fnokbc3" class="page-proshow02"><p class="title">詳細說明</p><div id="mzqh3eq" class="box"><p><p style="text-indent:25px">氮化硅結合碳化硅材料是一種新材料，主要產(chǎn)品有氮化硅結合碳化硅輻射管、氮化硅結合碳化硅磚、氮化硅結合碳化硅板等。被廣泛應用于鋼鐵、有色金屬、化工建材等多種行業(yè)，具有節(jié)能、環(huán)保、耐高溫、耐腐蝕等諸多優(yōu)點。氮化硅結合碳化硅性能及用途： 1、氮化硅結合碳化硅制品，質地堅硬，莫氏硬度約為9，在非金屬材料中屬于硬度材料，僅次于金剛石。 2、氮化硅結合碳化硅制品的常溫強度高，在1200-1400℃高溫下，幾乎保持與常溫相同時間的強度和硬度。隨著使用氣氛的不同，比較高安全使用溫度可達到1650-1750℃。 3、熱膨脹系數(shù)小，相比碳化硅等制品熱導率高，不易產(chǎn)生熱應力，具有良好熱震穩(wěn)定性，內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷，使用壽命長。高溫抗蠕能力強，耐腐蝕，內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷，耐極冷極熱，內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷、抗氧化，易制成尺寸精度高符合要求的制品。 4、產(chǎn)品廣泛應用于鋼鐵、有色金屬、化工建材等多種行業(yè)，節(jié)能、環(huán)保、降低成本。奧翔硅碳具備雄厚的實力和豐富的實踐經(jīng)驗。內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷,碳化硅結合氮化硅" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403314234119_zbwuzi_9705864.jpg"></div><p> 氮化硅結合碳化硅復合材料在氮化燒成時，制品由表及里存在N2和反應生成物的濃度梯度，它們的方向相同。氮化硅結合碳化硅復合材料在氮化燒成中，爐內(nèi)N2的消耗量與溫度形成一種表面平衡狀態(tài)，但實質上是硅被不斷氮化的連續(xù)過程。通過對窯爐內(nèi)氮分壓的控制來實施對窯爐升溫的控制，也就對氮化反應速度實施了控制，從而避免了燒成中的微觀結構缺點，能夠制得由外到里氮化率梯度趨近于零的產(chǎn)品。所謂氮壓控制燒成就是氮化硅結合碳化硅制品在窯爐中氮化燒成時，表現(xiàn)為：在微觀上是不斷進行的氮與硅的反應，達到一種動態(tài)平衡；在宏觀上是以氮分壓，也就是由窯爐內(nèi)的N2的消耗量和爐壓來控制和檢驗氮化率，它決定了升溫速度。在氮壓控制燒成中，不需要規(guī)定嚴格的升溫制度，而是預先設定標準爐壓，再根據(jù)爐壓變化來調(diào)整氮化工藝參數(shù)。氮化開始時，在一定時間間隔內(nèi)，如果實測爐壓等于控制壓時，說明氮化反應穩(wěn)定進行，爐溫不變；如果爐壓小于控制壓，而爐壓連續(xù)下降，說明氮化反應劇烈，應將爐溫下調(diào)；如果爐壓上升至大于控制壓時，說明氮化反應基本達到平衡，窯爐內(nèi)開始升溫，直到檢測到下一次爐壓下降。天津耐高溫碳化硅結合氮化硅廠價直銷奧翔硅碳擁有業(yè)內(nèi)**人士和高技術人才。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷,碳化硅結合氮化硅" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112080078/2215672.jpg"></div><p> 氮化硅結合碳化硅材料的氮壓控制燒成：所謂氮壓控制燒成就是氮化硅結合碳化硅制品在窯爐中氮化燒成時，表現(xiàn)為：在微觀上是不斷進行的氮與硅的反應，達到一種動態(tài)平衡；在宏觀上是以氮分壓，也就是由窯爐內(nèi)的N2的消耗量和爐壓來控制和檢驗氮化率，它決定了升溫速度。在氮壓控制燒成中，不需要規(guī)定嚴格的升溫制度，而是預先設定標準爐壓，再根據(jù)爐壓變化來調(diào)整氮化工藝參數(shù)。氮化開始時，在一定時間間隔內(nèi)，如果實測爐壓等于控制壓時，說明氮化反應穩(wěn)定進行，爐溫不變；如果爐壓小于控制壓，而爐壓連續(xù)下降，說明氮化反應劇烈，應將爐溫下調(diào)；如果爐壓上升至大于控制壓時，說明氮化反應基本達到平衡，窯爐內(nèi)開始升溫，直到檢測到下一次爐壓下降，這樣的一種循環(huán)工藝操作以表象上的準靜態(tài)、實質上連續(xù)的動態(tài)平衡可使氮化反應高速進行。我廠專業(yè)生產(chǎn)氮化硅結合碳化硅磚、氮化硅保護管、碳化硅保護管等產(chǎn)品，是山東率先生產(chǎn)氮化硅坩堝、氮化硅異型件、硅碳棒保護管和熱電偶保護管的廠家。</p><p> 氮化硅與碳化硅有著相似的化學結構和物理性質，與碳化硅均為強共價鍵化合物。氮化硅的熱膨脹系數(shù)小，氧化速度非常慢，高溫強度大，體積穩(wěn)定性好，有良好的導熱性，對于多數(shù)化學物質都穩(wěn)定，不被熔融有色金屬所侵蝕，是碳化硅理想的結合材料。將氮化硅引入碳化硅內(nèi)制成氮化硅結合碳化硅材料，在保持了碳化硅固有特性的同時，可以有效地提高碳化硅材料的高溫強度、熱震穩(wěn)定性和抗鐵水侵蝕能力等性能，而且可以在1200-1450?的較低溫度下制備，反應燒結過程為凈尺寸燒結，利于制備異形制品，適應大規(guī)模工業(yè)生產(chǎn)。反應燒結制備的氮化硅結合碳化硅耐火材料雖然已被應用于鋼鐵、有色及建材工業(yè)，但隨著科技的進步，現(xiàn)代工業(yè)的工藝技術不斷發(fā)展，耐火材料所需面對的工作環(huán)境越發(fā)苛刻，這就對原先使用的耐火的性能提出了更高的要求。氮化硅結合碳化硅耐火材料的生產(chǎn)現(xiàn)在還存在很多問題，如，如何保證硅粉的氮化率、如何控制氮化硅晶相組成、如何防止流硅現(xiàn)象的發(fā)生以及如何進一步提高制品強度。奧翔硅碳具有一支經(jīng)驗豐富、技術力量過硬的專業(yè)技術人才管理團隊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷,碳化硅結合氮化硅" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998403242947902_zbwuzi_6035847.jpg"></div><p> 氮化硅結合碳化硅陶瓷材料莫氏硬度約為9，僅次于金剛石和立方氮化硼，其使用壽命是鉻鉬耐磨鑄鋼的3倍；性價比要比采用鉻鉬耐磨鑄鋼高得多，且節(jié)約大量貴重的鉻、鉬等貴重的金屬材料。氮化硅結合碳化硅陶瓷材料可抵抗除氫氟酸(HF)以外的所有強弱酸的腐蝕，尤其是及大部分熔鹽、常溫鹵素和堿的腐蝕。氮化硅結合碳化硅屬于非氧化物陶瓷材料。同氧化物陶瓷不同，非氧化物陶瓷材料原子間主要是以共價鍵結合在一起，因而具有較高的硬度、模量、蠕變抗力，并且能把這些性能的大部分保持到高溫，這是氧化物陶瓷無法比擬的。但它們的燒結非常困難，必須在極高溫度(1500～2500℃)并有燒結助劑存在的情況下才能獲得較高密度的產(chǎn)品，有時必須借助熱壓燒結法才能達到希望的密度，所以非氧化物陶瓷的生產(chǎn)成本一般比氧化物陶瓷高。以上是小編為大家簡單講述氮化硅結合碳化硅材料的性能與其他材料的對比。幾年礦山采選機械因為連續(xù)不斷的工作，不可避免地機械會產(chǎn)生強烈的磨損而迅速失效，除了機械運動部位的磨損之外，礦山作業(yè)環(huán)境中更重要的是物料的摩擦、腐蝕加劇了機械的磨損，不但造成部件更換的經(jīng)濟損失，而且頻繁檢修也導致過多停工，降低連續(xù)作業(yè)率，消耗大量人力物力。奧翔硅碳銳意進取，持續(xù)創(chuàng)新為各行各業(yè)提供專業(yè)化服務。山西耐腐蝕碳化硅結合氮化硅供應商</p><p style="text-indent:25px">奧翔硅碳以發(fā)展求壯大，就一定會贏得更好的明天。內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷</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由于氮化硅結合碳化硅磚具有良好的熱導性，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，抗氧化和強度都會下降，影響整體壽命。氮化硅結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，從而受到破壞，具體反應式如下：SiC+Fe=FeSi+C雖然反應進行的開始溫度低，但是FeSi的熔點為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，但在1410℃以上時會被鎂、鎳鉻合金、不銹鋼溶液等溶液所腐蝕，因此有氮化硅的存在，氮化硅結合碳化硅磚耐極寒極熱的能力變得很強氮化硅結合碳化硅磚中的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合碳化硅磚會發(fā)生高溫熔損。內(nèi)蒙古鋼廠碳化硅結合氮化硅廠家直銷</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司注冊資金50-100萬元，是一家擁有51~100人***員工的企業(yè)。公司業(yè)務涵蓋[ "硅碳棒廠家", "碳化硅保護管", "熱電偶保護管", "碳化硅結合氮化硅" ]等，價格合理，品質有保證。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造機械及行業(yè)設備質量品牌。在社會各界的鼎力支持下，經(jīng)過公司所有人員的努力，公司自2002-03-27成立以來，年營業(yè)額達到50-100萬元。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/252084.html</p></div></div></div></div></div><div id="37ok8of" class="page-right twoColRt"><div id="iw8ajpv" class="box01 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