湖南鋁廠氮化硅保護(hù)管零售鄒平奧翔硅碳供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="氮化硅制品按工藝可以分為反應(yīng)燒結(jié)制品、熱壓制品、常壓燒結(jié)制品、等靜壓燒結(jié)制品和反應(yīng)重?zé)破返?。其中，反?yīng)燒結(jié)是一種常用的生產(chǎn)氮化硅耐火制品的方法。反應(yīng)燒結(jié)法生產(chǎn)氮化硅制品是將磨細(xì)的硅粉（粒度一般小于80μm），用機(jī)壓或等靜壓成型，坯體干燥后"><meta name="keywords" content="湖南鋁廠氮化硅保護(hù)管零售,氮化硅保護(hù)管"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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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>湖南鋁廠氮化硅保護(hù)管零售,氮化硅保護(hù)管</p><p><span>***更新：</span>2020-08-13 15:02:46</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="3d47prt" 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="gzrtgw2" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dhta329" class="box"><p><p style="text-indent:25px">氮化硅制品按工藝可以分為反應(yīng)燒結(jié)制品、熱壓制品、常壓燒結(jié)制品、等靜壓燒結(jié)制品和反應(yīng)重?zé)破返?。其中，反?yīng)燒結(jié)是一種常用的生產(chǎn)氮化硅耐火制品的方法。反應(yīng)燒結(jié)法生產(chǎn)氮化硅制品是將磨細(xì)的硅粉（粒度一般小于80μm），用機(jī)壓或等靜壓成型，坯體干燥后，在氮氣中加熱至1350～1400℃，在燒成過程中同時氮化而制得。采用這種生產(chǎn)方法，原料條件和燒成工藝及氣氛條件對制品的性能有很大的影響。硅粉中含有許多雜質(zhì)，如Fe，Ca，Aì，Ti等。Fe被認(rèn)為是反應(yīng)過程中的催化劑。它能促進(jìn)硅的擴(kuò)散，但同時，也將造成氣孔等缺點。Fe作為添加劑的主要作用：在反應(yīng)過程中可作催化劑，促使制品表面生成SiO2氧化膜；形成鐵硅熔系，氮溶解在液態(tài)FeSi2中，促進(jìn)β-Si3N4的生成。但鐵顆粒過大或含量過高，制品中也會出現(xiàn)氣孔等缺點，降低性能。一般鐵的加入量為0～5%。Al，Ca，Ti等雜質(zhì)，易與硅形成低共熔物。適當(dāng)?shù)奶砑恿浚梢源龠M(jìn)燒結(jié)，提高制品的性能。硅粉的粒度越細(xì)，比表面積越大，則可降低燒成溫度，湖南鋁廠氮化硅保護(hù)管零售。粒度較細(xì)的硅粉與粒度較粗的硅粉相比，制品中含α- Si3N4的量增高。降低硅粉的粒徑，可以降**品的顯微氣孔尺寸，湖南鋁廠氮化硅保護(hù)管零售。適當(dāng)?shù)牧６扰浔龋梢蕴岣咧破访芏?，湖南鋁廠氮化硅保護(hù)管零售。溫度對氮化速率影響很大。公司實力雄厚，產(chǎn)品質(zhì)量可靠。湖南鋁廠氮化硅保護(hù)管零售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南鋁廠氮化硅保護(hù)管零售,氮化硅保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998424403378913_zbwuzi_7753144.JPG"></div><p> 該產(chǎn)品一般不需研磨加工即可使用.反應(yīng)燒結(jié)法適于制造形狀復(fù)雜,尺寸精確的零件,成本也低,但氮化時間很長.熱壓燒結(jié)法(HPS)是將Si3N4粉末和少量添加劑(如MgO、Al2O3、MgF2、Fe2O3等),在1916MPa以上的壓強(qiáng)和1600℃以上的溫度進(jìn)行熱壓成型燒結(jié).英國和美國的一些公司采用的熱壓燒結(jié)Si3N4陶瓷,其強(qiáng)度高達(dá)981MPa以上.燒結(jié)時添加物和物相組成對產(chǎn)品性能有很大的影響.由于嚴(yán)格控制晶界相的組成,以及在Si3N4陶瓷燒結(jié)后進(jìn)行適當(dāng)?shù)臒崽幚?所以可以獲得即使溫度高達(dá)1300℃時強(qiáng)度(可達(dá)490MPa以上)也不會明顯下降的Si3N4系陶瓷材料,而且抗蠕變性可提高三個數(shù)量級.若對Si3N4陶瓷材料進(jìn)行1400―――1500℃高溫預(yù)氧化處理,則在陶瓷材料表面上形成Si2N2O相,它能提高Si3N4陶瓷的耐氧化性和高溫強(qiáng)度.熱壓燒結(jié)法生產(chǎn)的Si3N4陶瓷的機(jī)械性能比反應(yīng)燒結(jié)的Si3N4要優(yōu)異,強(qiáng)度高、密度大.但制造成本高、燒結(jié)設(shè)備復(fù)雜,由于燒結(jié)體收縮大,使產(chǎn)品的尺寸精度受到一定的限制,難以制造復(fù)雜零件,只能制造形狀簡單的零件制品,工件的機(jī)械加工也較困難常壓燒結(jié)法(PLS)在提高燒結(jié)氮氣氛壓力方面,利用Si3N4分解溫度升高(通常在N2=1atm氣壓下,從1800℃開始分解)的性質(zhì),在1700―――1800℃溫度范圍內(nèi)進(jìn)行常壓燒結(jié)后。湖南鋁廠氮化硅保護(hù)管零售奧翔硅碳以誠信為根本，以質(zhì)量服務(wù)求生存。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南鋁廠氮化硅保護(hù)管零售,氮化硅保護(hù)管" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238610950009765/4976881.jpg"></div><p style="text-indent:25px">氮化硅的強(qiáng)度很高，尤其是熱壓氮化硅，是世界上**堅硬的物質(zhì)之一。它極耐高溫，強(qiáng)度一直可以維持到1200℃的高溫而不下降，受熱后不會熔成融體，一直到1900℃才會分解，并有驚人的耐化學(xué)腐蝕性能，能耐幾乎所有的無機(jī)酸和30%以下的燒堿溶液，也能耐很多有機(jī)酸的腐蝕；同時又是一種高性能電絕緣材料。氮化硅 - 性質(zhì)　化學(xué)式Si3N4。白色粉狀晶體;熔點1900℃,密度3.44克/厘米(20℃)；有兩種變體：α型為六方密堆積結(jié)構(gòu)；β型為似晶石結(jié)構(gòu)。氮化硅有雜質(zhì)或過量硅時呈灰色。主要應(yīng)用于高溫行業(yè)。其中碳化硅保護(hù)管占了主要的位置。</p><p> 氮化硅保護(hù)管純氮化硅保護(hù)管與氮化硅結(jié)合碳化硅保護(hù)管，純氮化硅保護(hù)管代價太高，所以一般用的都氮化硅結(jié)合碳化硅保護(hù)管。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口的，都用于鋁制品鑄造行業(yè)。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，對金屬溶液沒污染，熱膨脹系數(shù)低，不掉渣，不開裂，耐高溫**使用溫度1750℃），結(jié)構(gòu)簡單，安裝方便，易于維護(hù)等特點，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。兩端都開口的用于鋁輪轂制造時鋁液從管子的低端升到高處，又稱作升液管。奧翔硅碳擁有業(yè)內(nèi)**人士和高技術(shù)人才。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南鋁廠氮化硅保護(hù)管零售,氮化硅保護(hù)管" src="http://tyunfile.71360.com/UpLoadFile/2019/7/27/16/636998424404004729_zbwuzi_4901460.jpg"></div><p>產(chǎn)品簡介：氮化硅是一種結(jié)構(gòu)陶瓷材料，具有良好的抗折強(qiáng)度和抗氧化性能，比較高使用溫度高達(dá)1500攝氏度，還具有良好的耐磨性能和對金屬溶液的抗腐蝕性能，所以氮化硅熱電偶保護(hù)管可以直接與鋁、鋅、銅。氮化硅熱電偶保護(hù)管鋁液、金屬熔液測溫用陶瓷保護(hù)管熱電偶是應(yīng)用較的測溫傳感器，而熱電偶的長期穩(wěn)定性、使用壽命等各項性能指標(biāo)都與保護(hù)管密切相關(guān)。氮化硅陶瓷保護(hù)管與熱電偶配套使用，起到保護(hù)熱電偶。氮化硅發(fā)熱體保護(hù)管工藝成型：等靜壓；燒結(jié)：反應(yīng)燒結(jié)、氣壓高溫?zé)Y(jié)特點1）強(qiáng)度高、致密性好。2）較低的熱膨脹系數(shù)。3）優(yōu)異的抗熱沖擊性能.4）與鋁熔液等有色金屬熔液不浸潤。5）良好的耐腐蝕性壓鑄。氮化硅熱電偶保護(hù)管、鋁液加熱保護(hù)管等。采用高純氮化硅結(jié)氣氛燒結(jié)工藝。具有良好的導(dǎo)熱性、抗熱振性和耐磨性、耐腐蝕性強(qiáng)、抗沖刷、無污染等特點。較高使用溫度達(dá)1450度。用于鋁液、銅液、鋅液等有色金屬的。氮化硅發(fā)熱體保護(hù)管鋁液、金屬熔液恒溫用發(fā)熱體保護(hù)管壓鑄過程中溫度控制是獲得優(yōu)良鑄件的重要因素，為了將熔液控制在較佳澆注溫度，采用發(fā)熱體來恒定溫度。奧翔硅碳技術(shù)力量雄厚，工裝設(shè)備和檢測儀器齊備，檢驗與實驗手段完善。湖南鋁廠氮化硅保護(hù)管零售</p><p style="text-indent:25px">選擇奧翔硅碳，就是選擇質(zhì)量、真誠和未來。湖南鋁廠氮化硅保護(hù)管零售</p><p style="text-indent:25px">氮化硅與水幾乎不發(fā)生作用；在濃強(qiáng)酸溶液中緩慢水解生成銨鹽和二氧化硅；易溶于氫氟酸，與稀酸不起作用。濃強(qiáng)堿溶液能緩慢腐蝕氮化硅，熔融的強(qiáng)堿能很快使氮化硅轉(zhuǎn)變?yōu)楣杷猁}和氨。氮化硅在 600℃以上能使過渡金屬（見過渡元素）氧化物、氧化鉛、氧化鋅和二氧化錫等還原,并放出氧化氮和二氧化氮。1285℃ 時氮化硅與二氮化三鈣Ca3N2發(fā)生以下反應(yīng)： Ca3N2+Si3N4─→3CaSiN2 氮化硅的制法有以下幾種：在1300～1400℃時將粉狀硅與氮氣反應(yīng)；在1500℃時將純硅與氨作用；在含少量氫氣的氮氣中灼燒二氧化硅和碳的混合物;將SiCl4的氨解產(chǎn)物Si(NH2)4完全熱分解。氮化硅可用作催化劑載體、耐高溫材料、涂層和磨料等。湖南鋁廠氮化硅保護(hù)管零售</p><p style="text-indent:25px">鄒平縣奧翔硅碳制品有限公司成立于2002-03-27，注冊資本：50-100萬元。該公司生產(chǎn)型的公司。鄒平奧翔硅碳供應(yīng)是一家有限責(zé)任公司企業(yè)，一直貫徹“以人為本，服務(wù)于社會”的經(jīng)營理念;“質(zhì)量高速，誠守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。以滿足顧客要求為己任；以顧客永遠(yuǎn)滿意為標(biāo)準(zhǔn)；以保持行業(yè)**為目標(biāo)，提供***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" ]。鄒平奧翔硅碳供應(yīng)順應(yīng)時代發(fā)展和市場需求，通過**技術(shù)，力圖保證高規(guī)格高質(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" ]。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/903083.html</p></div></div></div></div></div><div id="dw8irta" class="page-right 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