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src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182054951172/6741431.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jsjk6xd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182054951172/6741431.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="exndp9t" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>昌平區(qū)ITT泵用機械密封件廠,泵用機械密封件</p><p><span>***更新：</span>2020-09-05 16:19:55</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8labxpt" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">伊格爾博格曼機械密封（張家港）有限公司</a></p><p><span>聯(lián)系人：</span>閆女士</p><p><span>郵箱: </span>eaglebugmann@qq.com</p><p><span>電話: </span>18013293108</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://eaglebugmann.com</p><p><span>手機: </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="g8mzeze" class="page-proshow02"><p class="title">詳細說明</p><div id="chtsndh" class="box"><p><p> 也稱平直度）是密封環(huán)很重要的一個質(zhì)量指標，要求在0．0009mm以內(nèi)，這樣的數(shù)量級用普通的量具是無法測量的。既準確又迅速的方法是用光干涉法。它需要一個光學平晶和單色光源，一般用鈉光燈。檢測時，將平晶放到被檢的密封端面上，斜上方用鈉光燈照射（圖15）檢查干涉條紋的數(shù)量。鈉光的波長為0．6μm，每個干涉條紋為半個波長，昌平區(qū)ITT泵用機械密封件廠，即一條干涉條紋為0．3μm，由干涉條紋的數(shù)量即可確定密封端面的平面度。確定干涉條紋的數(shù)量：密封端面的平面度不同，條紋的種類也不同。圖16表示了幾種平面度合格的圖像，至于不合格的圖像各式各樣未予繪出。圖16a是平直的條紋，表明密封端面的平面度接近光學平晶的平面度，這種平面度高；圖16b是彎曲的條紋，干涉條紋數(shù)在一條以內(nèi)，即小于μm；圖16c也是彎曲的條紋，干涉條紋數(shù)二條，平面度在μm以內(nèi)；圖16d是同心圓狀的干涉條紋，如果是從平板研磨后取下來檢驗平面度，昌平區(qū)ITT泵用機械密封件廠，這說明端面的內(nèi)緣高，外緣低，同心圓數(shù)量越多，其內(nèi)外緣高低差別越大。出面同心圓的條紋不要超過2個。六、動環(huán)和靜環(huán)動環(huán)可分為非補償型和補償型兩種。在靜止型機械密封中，采用非補償型動環(huán)，昌平區(qū)ITT泵用機械密封件廠，固在軸上，有的用軸套壓緊在軸上（圖3）。補償型動環(huán)***用于旋轉(zhuǎn)型機械密封中。南寧宙斯泵用機械密封件廠家。昌平區(qū)ITT泵用機械密封件廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昌平區(qū)ITT泵用機械密封件廠,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182054951172/6741431.png"></div><p> 磨損較均勻；從受力角度考慮過窄不利，破壞和變形的可能性增加了＞俐，密封端面的直徑又是載荷系數(shù)的函數(shù)。因此，密封端面的寬度應綜合考慮。一般地講，對普通介質(zhì)密封端面隨直徑的增大而加寬。對于輕烴類介質(zhì)，端面寬度比在普通介質(zhì)中寬一些：而高速機械密封，端面寬度相對地窄一些，否則發(fā)熱量太大，不能正常運轉(zhuǎn)，一般在3mm左右。環(huán)直徑（mm、環(huán)寬（mm）－20～602～460～1004～6100～2005—7四、密封環(huán)的技術要求：1）密封端面的平面度不大于0．0009mm（即三個單色光干涉帶）；硬質(zhì)材料密封端面粗糙度Ra值不大于0．2μm（相當于Δ10）；軟質(zhì)材料密封端面粗糙度Ra值不大于0．4μm(相當于Δ9)，表面不應有裂紋、劃傷、氣孔和疏松等影響使用性能的缺陷。2）密封環(huán)的密封端面與輔助密封圈接觸的端面平行度按GBll84－80的7級精度規(guī)定。3）密封環(huán)端面與安裝輔助密封圈的內(nèi)（或外）圓表面的垂直度應按GBll84－80的7級精度的規(guī)定。4）密封環(huán)與輔助密封圈接觸部位的表面粗糙度凡值不大于3．2μm；外圓或內(nèi)孔尺寸公差為hg或Hg。上述要求是對普通泵用機械密封的密封環(huán)而言，對轉(zhuǎn)速較低的釜用機械密封可適當放寬或參考相應的標準，而對高速機械密封則要求更高。五、平面度平面度。昌平區(qū)ITT泵用機械密封件廠麗江襄樊五二五泵用機械密封件廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昌平區(qū)ITT泵用機械密封件廠,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330181789541015/3812583.png"></div><p> 五、與釜用機械密封有關的幾個參數(shù)1.使用壽命釜用機械密封的使用壽命一般規(guī)定半年以上.其實使用壽命與攪拌軸的轉(zhuǎn)速、密封尺寸、摩擦副材料等因素有關.圖10-6為EKATO公司對不同尺寸的密封在不同轉(zhuǎn)速下的使用壽命試驗結(jié)果.2.適用范圍釜用密封的適用范圍與使用條件、何種輔助裝置有關，，每個密封公司都有其產(chǎn)品適用范圍的說明.圖10-7為EKATO公司RD023和RD200ST型密封在密封液貯罐和壓力平衡裝置兩種條件下的適用范圍圖.高溫機械密封機械密封的工作溫度超過80℃時就作為高溫機械密封(有的密封公司以工作溫度>90℃為界限)，在高溫下，密封主要間題有下列幾項:密封端面液體汽化，摩擦副的熱應力和熱變雍，組合件、鑲嵌件可能因配合不當而松脫，輔助密封圈因高溫引起的老化、龜裂、粘結(jié)和彈性消失，彈簧疲勞和強度降低，材料的腐蝕和磨損加快.一、高溫機械密封的要求1.選用耐高溫的密封材料在高溫下，材料的耐溫性能顯得特別重要，合理選用密封材料可使一般結(jié)構(gòu)的機械密封仍能適用于高溫工作條件，簡化手續(xù)，節(jié)省開支.表10-1列出不同密封材料的使用極限溫度.2.采用金屬波紋管型機械密封或金屬波紋管與普通機械密封相結(jié)合的密封結(jié)構(gòu)從耐熱性能來看。</p><p> ***節(jié)機械密封原理機械密封是一種旋轉(zhuǎn)機械的軸封裝置。比如離心泵、離心機、反應釜和壓縮機等設備。由于傳動軸貫穿在設備內(nèi)外，這樣，軸與設備之間存在一個圓周間隙，設備中的介質(zhì)通過該間隙向外泄漏，如果設備內(nèi)壓力低于大氣壓，則空氣向設備內(nèi)泄漏，因此必須有一個阻止泄漏的軸封裝置。軸封的種類很多，由于機械密封具有泄漏量少和壽命長等優(yōu)點，所以當今世界上機械密封是這些設備主要的軸密封方式。機械密封又叫端面密封，在國家有關標準中是這樣定義的：“由至少一對垂直于旋轉(zhuǎn)軸線的端面在流體壓力和補償機構(gòu)彈力（或磁力）的作用以及輔助密封的配合下保持貼合并相對滑動而構(gòu)成的防止流體泄漏的裝置。”一、機械密封的分類機械密封近年來發(fā)展很快，根據(jù)不同的工況出現(xiàn)了各種各樣的結(jié)構(gòu)，但無論哪種結(jié)構(gòu)都由以下四部分組成：一部分是由動環(huán)和靜環(huán)組成的密封端面，有時也稱為摩擦副。第二部分是由彈性元件為主要零件組成的緩沖補償機構(gòu)，其作用是使密封端面緊密貼合。第三部分是輔助密封圈，其中有動環(huán)和靜環(huán)密封圈。第四部分是使動環(huán)隨軸旋轉(zhuǎn)的傳動機構(gòu)。機械密封實現(xiàn)的原理如圖所示：軸通過傳動座（6）和推環(huán)（4），帶動動環(huán)（2）旋轉(zhuǎn)，靜環(huán)(1)固定不動。寶雞襄樊五二五泵用機械密封件大全。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昌平區(qū)ITT泵用機械密封件廠,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182014736328/2407086.png"></div><p> 且接觸應力不均勻，使之產(chǎn)生機械變形；二是由于使用溫度較高（或過低），材料物理性能（主要是線膨脹系數(shù)）的差異使硬質(zhì)合金環(huán)和環(huán)座的配合部位不能同步脹縮，過盈量發(fā)生變化，接觸應力也隨著發(fā)生變化，這種變化對密封環(huán)的使用產(chǎn)生影響。密封端面變形破壞了平面度，更有甚者喪失過盈，使聯(lián)接失效，硬質(zhì)合金環(huán)熱裝式密封環(huán)目前有三種結(jié)構(gòu)，圖23a是制造廠早期生產(chǎn)的，結(jié)構(gòu)較為簡單。但是由于硬質(zhì)合金環(huán)和輔助密封圈接觸，一旦硬質(zhì)合金環(huán)松脫，運轉(zhuǎn)時輔助密封圈被嚴重磨損，會出現(xiàn)大量泄漏。而圖23b是在圖23a的基礎上改進的，輔助密封圈不和硬質(zhì)合金環(huán)接觸，不存在上述缺陷，只是硬質(zhì)合金環(huán)和環(huán)座之間有輕微泄漏。為了減少硬質(zhì)合金環(huán)密封端面的不均勻變形，環(huán)座的熱裝部位內(nèi)外設置環(huán)形槽（圖23c），使硬質(zhì)合金環(huán)外圓柱面的接觸應力趨于均勻，以減少碳化鎢環(huán)的變形，使用效果較好。焊接的組合式密封環(huán)特點為克服熱裝式密封環(huán)松脫的缺陷，出現(xiàn)了焊接的密封環(huán)（圖24）。所用的硬質(zhì)合金是以Cr3C2為硬質(zhì)相、Ni為粘結(jié)相的燒結(jié)合金材料。耐腐蝕優(yōu)于YG6等硬質(zhì)合金，高溫下具有優(yōu)異的抗氧化性能，在1000℃空氣中加熱2小時無任何變化。但是導熱性能較差，*為YG6的1／3；線膨脹系數(shù)大。三明襄樊五二五泵用機械密封件選型。延安石家莊工業(yè)泵泵用機械密封件廠家</p><p style="text-indent:25px">巴中石家莊工業(yè)泵泵用機械密封件廠家。昌平區(qū)ITT泵用機械密封件廠</p><p> 填料密封已滿足不了要求;二是使用條件越來越苛刻，安全要求也越來越高，減少泄漏，防止污染環(huán)境的呼聲促使設計、生產(chǎn)部門采用機械密封;三是釜用機械密封的結(jié)構(gòu)不斷改進以及與其配套的輔助裝置普遍得到采用，使密封效果更良好，從而節(jié)省了維修費用.有人做過統(tǒng)計，盡管機械密封的凈購置費用比填料密封高，但安裝使用之后，機械密封的維修費用只占填料密封維修費用的1/20，五年后總費用，機械密封比填料密封低一半.一、釜用機械密封與泵用機械密封的區(qū)別1.釜用機械密封大多數(shù)為立式，少數(shù)為傾斜式，極個別為水平式.一般計算機械密封端面比壓都不考慮旋轉(zhuǎn)零件的自重.2.泵用機械密封的軸徑多數(shù)在100mm以下，而釜用機械密封的軸徑在100mm以上也很多.泵用機械密封的重量一般從幾百克到幾公斤，.而一套釜用機械密封的重量有時達幾百公斤到一千公斤以上。所以，在設計時要考慮安裝、檢修所需的起吊裝置.3.釜用機械密封的密封介質(zhì)多數(shù)為氣相.因此，釜用密封的端面比壓要比泵用密封的端面比壓高.4.釜用密封多數(shù)為雙端面、平衡型結(jié)構(gòu)，此外，為了安裝和檢修方便，也用剖分式結(jié)構(gòu)和易檢拆結(jié)構(gòu).二、上裝式釜用機械密封上裝式釜用密封應用較廣，它占引進的斧用機械密封95%以上.例如。昌平區(qū)ITT泵用機械密封件廠</p><p style="text-indent:25px">伊格爾博格曼機械密封（張家港）有限公司致力于機械及行業(yè)設備，是一家生產(chǎn)型公司。公司業(yè)務涵蓋機械密封，泵用機械密封，釜用機械密封，攪拌器機械密封等，價格合理，品質(zhì)有保證。公司注重以質(zhì)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)設備良好品牌。張家港博格曼立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1167674.html</p></div></div></div></div></div><div id="agxsjkf" 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