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id="jc4w2tk" class="proBig"><div id="pe9icoa" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/15/636998399497396159_zbwuzi_1172358.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lapyhdf" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/15/636998399497396159_zbwuzi_1172358.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2zyn83c" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>1800度硅鉬棒價格,硅鉬棒</p><p><span>***更新：</span>2020-08-17 12:02:36</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="t7d7pm2" 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="bp9eg7g" class="page-proshow02"><p class="title">詳細說明</p><div id="ga4pwl3" class="box"><p><p style="text-indent:25px"> 使用硅鉬棒，硅碳棒來加熱的爐子溫度都在1000度以上，燒制產品時又需要對溫度有一定的控制，這就需要熱電偶來對溫度做到很準確的測定，然后通過溫控系統(tǒng)對爐溫加以控制。熱電偶是以金屬導體的熱電效應，將熱能轉化為電能時產生的熱電勢來測定溫度的。熱電偶的測量范圍很廣，一般在200-2000度之間，可以與自動化控制系統(tǒng)連接，也可以遠距離測量。熱電偶的型號與規(guī)格很多，在不同的使用溫度和特殊氣氛條件下，選擇合適的熱電偶是獲得溫度測量精度的前提。1000度以下用WRRK-N,WRR-E,WRR-C，1800度硅鉬棒價格,WRR-F等幾種熱電偶來測溫。硅鉬棒與硅碳棒爐子因為溫度高，一定要選用鉑銠型熱電偶，1800度硅鉬棒價格，硅碳棒爐子溫度相對較低，使用WRP-S型較好，1800度硅鉬棒價格，1700型硅鉬棒爐子一般采用的是WRQ-R型，1800型硅鉬棒爐子多以WRRK-B型為主。奧翔硅碳熱忱歡迎新老客戶惠顧。1800度硅鉬棒價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="1800度硅鉬棒價格,硅鉬棒" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/15/636998399497396159_zbwuzi_1172358.jpg"></div><p>硅鉬棒在高溫使用過程中，表面會生成一層致密的二氧化硅保護膜，保護硅鉬棒不再繼續(xù)氧化。但是如果使用不當則會造成棒表面的保護膜不斷脫落再形成，容易使硅鉬棒損耗嚴重。硅鉬棒跟硅碳棒一樣，在使用時分間斷使用和連續(xù)使用，而且連續(xù)使用要比間斷使用壽命長得多，一般在實驗室使用時為間斷使用，不停的重復升溫保溫降溫的過程，造成硅鉬棒表面產生熱應力，引起保護膜的破裂、脫落等，然后再次生成保護膜，這個時候硅鉬棒表面會產生凹坑，經過長時間使用，在**小截面處燒斷。這就是典型的硅鉬棒間斷使用的損耗。實驗室的間斷使用不可避免，但是可以盡量的減少升溫降溫的次數，如果在升溫和降溫的過程中讓溫度變化差降低，會有效減少硅鉬棒的損耗。硅鉬棒在工業(yè)上使用一般為連續(xù)使用，連續(xù)使用雖然比間斷使用壽命要長的多，但是也是有避免不了的損耗的。首先在工業(yè)生產過程中雖然為連續(xù)使用，但是有時候需要停爐或者爐子維修，這時候就會產生間斷使用的熱應力效應，不過由于工業(yè)上間斷的次數不多影響沒那么大。然后是硅鉬棒長時間高溫使用，棒表面的保護膜會慢慢蒸發(fā)并且慢慢地再形成。在形成二氧化硅保護膜的同時，其中的鉬元素會保留下來。1800度硅鉬棒價格奧翔硅碳交通便利，地理位置優(yōu)越。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="1800度硅鉬棒價格,硅鉬棒" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238607185839844/612263.jpg"></div><p>硅鉬棒的注意事項：首先硅鉬棒加熱元件，不應該在400℃至700℃溫度范圍內使用，因此在此不利條件下，元件將會發(fā)生低溫氧化致使元件毀壞。其次硅鉬棒加熱元件適宜在空氣、中性氣氛中使用，還原性氣氛如氫氣等會破壞保護層，氯和硫的蒸汽對元件有直接的損害。安裝：硅鉬棒在高溫時(1500度以上)有些軟化，低溫時又硬又脆，為了避免溫變時產生應力，有利于元件的熱脹冷縮，采用自由垂直的吊掛安裝方法比較好。吊裝元件的拆換也較方便，不必等爐子冷下來，而可以熱換。吊掛硅鉬棒時必須注意下列事項:爐襯材料應用剛玉磚，其Fe2O3的質量分數應小于1%，因為它與保護膜相互作用形成易熔的硅酸鹽，從而加速元件的破壞；冷端部泄漏的熾熱爐氣，不僅增加爐子的熱損失，甚至會燒壞導電帶夾頭和引線夾子，因此，采用石棉夾頭比較好；因硅鉬棒是脆性材料，抗彎強度低，不能承受碰擊，在安裝過程中應采取防護措施，以防折斷。連接導電帶時，必須先將石棉夾頭(或瓷夾頭)安裝好，夾緊時用力不能過大；將硅鉬棒裝進塞磚，為了避免因裝卸移動而產生的機械應力，塞磚要用泡沫剛玉磚制成的單獨磚塊；將裝有硅鉬棒的塞磚插入爐頂準備好的空檔中,塞磚要突出于爐頂的外面，這樣便于拆卸。</p><p style="text-indent:25px">吊掛硅鉬棒時必須注意下列事項: 　　1) 爐襯材料應用剛玉磚，其Fe2O3的質量分數應小于1%，因為它與保護膜相互作用形成易熔的硅酸鹽，從而加速元件的破壞。　　2)冷端部泄漏的熾熱爐氣，不僅增加爐子的熱損失，甚至會燒壞導電帶夾頭和引線夾子，因此，比較好采用石棉夾頭。　　3)因硅鉬棒是脆性材料，抗彎強度低，不能承受碰擊，在安裝過程中應采取防護措施，以防折斷。連接導電帶時，必須先將石棉夾頭(或瓷夾頭)安裝好，夾緊時用力不能過大。　　4)將硅鉬棒裝進塞磚，為了避免因裝卸移動而產生的機械應力，塞磚要用泡沫剛玉磚制成的單獨磚塊。　　5)將裝有硅鉬棒的塞磚插入爐頂準備好的空檔中,塞磚要突出于爐頂的外面，這樣便于拆卸。　　6)將導電帶同早已準備好的連接支架相連接，但應避免導電帶緊張和不自然的扭曲機械應力。　　7)為了避免石棉夾頭因熱脹冷縮而可能使硅鉬棒下垂變形，可用水玻璃拌合的耐火泥漿涂在連接處，以便固定牢靠。　　8)吊裝時發(fā)熱部的錐體交界處與爐墻相距約25mm-3omm，冷端部應露出爐頂外面75mm，其發(fā)熱部的下端到爐底應不小于50mm。　　9)硅鉬棒在爐內的間隔應不小于元件本身的中心間距。奧翔硅碳以快的速度提供好的產品質量和好的價格及完善的售后服務。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="1800度硅鉬棒價格,硅鉬棒" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/15/636998399497396159_zbwuzi_5824360.jpg"></div><p>硅鉬棒簡述：硅鉬棒阻性電熱元件，以二硅化鉬為基礎制成，耐高溫、抗氧化的。在高溫氧化性氣氛下使用時，表面生成一層光亮致密的石英（SiO2）玻璃膜，能夠保護硅鉬棒內層不再氧化，硅鉬棒元件具有獨特的高溫抗氧化性。硅鉬棒阻性電熱元件是一種以二硅化鉬為基礎制成的耐高溫、抗氧化的電阻發(fā)熱元件。在高溫氧化性氣氛下使用時，表面生成一層光亮致密的石英（SiO2）玻璃膜，能夠保護硅鉬棒內層不再氧化，因此硅鉬棒元件具有獨特的高溫抗氧化性。在氧化氣氛下、使用溫度高達1800℃，硅鉬棒電熱元件的電阻隨著溫度升高而迅速增加，當溫度不變時電阻值穩(wěn)定。在正常情況下元件電阻不隨使用時間的長短而發(fā)生變化，因此，新舊硅鉬棒電熱元件可以混合使用。根據加熱設備裝置的結構、工作氣氛和溫度，對電熱元件的表面負荷進行正確地選擇，是硅鉬棒電熱元件的使用壽命的關鍵。硅鉬棒化學符號：分子式：MoSi2硅鉬棒理化性能：密度：～抗彎強度：20MPa(20℃)維氏硬度(HV)：570kg/mm2氣孔率：～吸水率：熱伸長率：4%輻射系數：～(800～2000℃)硅鉬棒產品應用：硅鉬棒電熱元件產品廣泛應用于冶金、煉鋼、玻璃、陶瓷、耐火材料、晶體、電子元器件、半導體材料的研究、生產制造等領域。我公司生產的產品、設備用途非常多。1800度硅鉬棒價格</p><p style="text-indent:25px">奧翔硅碳以精良的產品品質和優(yōu)先的售后服務，全過程滿足客戶的***需求。1800度硅鉬棒價格</p><p style="text-indent:25px">硅鉬棒在氧化氣氛下、比較高使用溫度為1800℃，硅鉬棒電熱元件的電阻隨著溫度升高而迅速增加，當溫度不變時電阻值穩(wěn)定。在正常情況下元件電阻不隨使用時間的長短而發(fā)生變化，因此，新舊硅鉬棒電熱元件可以混合使用。根據加熱設備裝置的結構、工作氣氛和溫度，對電熱元件的表面負荷進行正確地選擇，是硅鉬棒電熱元件的使用壽命的關鍵。理化性能：密度：5.6～5.8g/cm3 抗彎強度：20MPa(20℃) 維氏硬度(HV)：570kg/mm2 氣孔率：0.5～2.0% 吸水率：0.5% 熱伸長率：4% 輻射系數：0.7～0.8(800～2000℃)1800度硅鉬棒價格</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司創(chuàng)建于2002-03-27，注冊資金 50-100萬元，辦公設施齊全，辦公環(huán)境優(yōu)越，已***實行網絡化辦公，**提高了速度和效率。奧翔硅碳制品是鄒平縣奧翔硅碳制品有限公司的主營品牌，是專業(yè)的硅碳棒，硅碳管，熱電偶保護管。等直徑硅碳棒，U型硅碳棒，螺紋硅碳棒，碳化硅制品，碳化硅結合氮化硅，碳化硅保護管，氮化硅保護管，碳化硅窯具！硅碳棒夾具，粗端式硅碳棒。門型硅碳棒，槍型硅碳棒，升液管，輻射管公司，擁有自己**的技術體系。我公司擁有強大的技術實力，多年來一直專注于硅碳棒，硅碳管，熱電偶保護管。等直徑硅碳棒，U型硅碳棒，螺紋硅碳棒，碳化硅制品，碳化硅結合氮化硅，碳化硅保護管，氮化硅保護管，碳化硅窯具！硅碳棒夾具，粗端式硅碳棒。門型硅碳棒，槍型硅碳棒，升液管，輻射管的發(fā)展和創(chuàng)新，打造高指標產品和服務。鄒平奧翔硅碳供應始終以質量為發(fā)展，把顧客的滿意作為公司發(fā)展的動力，致力于為顧客帶來***的[ "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" ]。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/944743.html</p></div></div></div></div></div><div id="3x8dpg8" class="page-right twoColRt"><div id="3q42yau" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="88jnwxz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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