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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>南通靜密封,密封</p><p><span>***更新：</span>2020-08-23 19:07:45</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="au8eyz8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">漣水創(chuàng)密機(jī)械制造有限公司</a></p><p><span>聯(lián)系人：</span>袁經(jīng)理</p><p><span>郵箱: </span>lscmjx@163.com</p><p><span>電話: </span>15250888877</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚(yáng)民營(yíng)經(jīng)濟(jì)產(chǎn)業(yè)園</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="d3xku2z" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xbdas3o" class="box"><p><p style="text-indent:25px">HG20592~20635-1997規(guī)定采用非金屬墊密封時(shí)，法蘭密封面可車(chē)制密紋水線或要求法蘭密封面表面粗糙度。對(duì)于突面法蘭如車(chē)制密紋水線，則標(biāo)記為“RF（A）”，南通靜密封。小編也曾在現(xiàn)場(chǎng)開(kāi)箱驗(yàn)收時(shí)，遇到安裝公司驗(yàn)收人員發(fā)現(xiàn)法蘭密封面不光滑提出疑問(wèn)。那么，法蘭密封面必須車(chē)制密紋水線嗎？在工廠制造法蘭時(shí)一般都在密封面上均勻的車(chē)2-3道，水線一般是深1mm，南通靜密封，90度,寬度在5mm，密封水紋線的加工，有利于法蘭的密封，而且制造上也容易實(shí)現(xiàn)。但這種密紋水線一般用在軟墊片上。由于墊片是軟的，法蘭面通過(guò)擠壓，使墊片進(jìn)入到這些線中，起到密封的作用。密紋水線的加入，把一個(gè)密封面分成了好幾個(gè)密封面，水線好比迷宮，減少了介質(zhì)泄露的可能。新的標(biāo)準(zhǔn)取消了密紋水線的要求，南通靜密封，在HG/T20592~20635-2009中規(guī)定，突面、凹面/凸面及全平面密封面是采用加工車(chē)刀加工時(shí)自然形成的一種鋸齒形同心圓或螺旋齒槽。加工車(chē)刀的圓角半徑應(yīng)不小于，形成的鋸齒形同心圓或螺旋齒槽深度約為，節(jié)距約為。這樣也起到了增加密封效果的作用，只不過(guò)紋線是加工時(shí)自然出現(xiàn)的細(xì)密紋線，而水線則是單獨(dú)加工出來(lái)的2道或3道較深的槽，而且密紋水線不能是螺旋線。各種密封其性能影響因素是不同的，如機(jī)械密封(填料密封等)影響因素有溫度、介質(zhì)、磨損、所承受壓力等。南通靜密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通靜密封,密封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245505108457031/9335500.jpg"></div><p> 水泵機(jī)械密封選型方法 </p> <p> 機(jī)械密封按工作條件和介質(zhì)性質(zhì)的不同，有耐高溫、耐低溫機(jī)械密封，耐高壓、耐腐蝕機(jī)械密封，耐顆粒介質(zhì)機(jī)械密封和適應(yīng)易汽化的輕質(zhì)烴介質(zhì)的機(jī)械密封等，應(yīng)根據(jù)不同的用處選取不同結(jié)構(gòu)型式和材料的機(jī)械密封。 </p> <p> 選型的主要參數(shù)有：密封腔體壓力(MPA)、流體溫度(℃)、工作速度(M/S)、流體的特性以及安裝密封的有效空間等。 </p> <p> 選型的基本原則為： </p> <p> 1、根據(jù)密封腔體壓力，確定密封結(jié)構(gòu)采用平衡型或非平衡型，單端面或雙端面等。 </p> <p> 2、根據(jù)工作速度，確定采用旋轉(zhuǎn)式或靜止式，流體動(dòng)壓式或非接觸型。 </p> <p> 3、根據(jù)溫度及流體性質(zhì)，確定摩擦副和輔助密封材料，以及正確選擇潤(rùn)滑、沖洗、保溫、冷卻等機(jī)械密封循環(huán)保護(hù)系統(tǒng)等。 </p> <p> 4、根據(jù)安裝密封的有效空間，確定采用多彈簧或單彈簧或波形彈簧，內(nèi)裝式或外裝式。南通密封便宜機(jī)械密封的密封面要有一定的比壓，從而達(dá)到密封的目的，兩端面的緊密緊密程度可以通過(guò)彈簧調(diào)節(jié)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通靜密封,密封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247288457353515/6836188.jpg"></div><p style="text-indent:25px">化學(xué)腐蝕由于密封接觸腐蝕性介質(zhì)就會(huì)產(chǎn)生表面腐蝕，甚至在表面各處產(chǎn)生劇烈腐蝕點(diǎn)而形成點(diǎn)蝕。在金屬的晶界上產(chǎn)生的晶間腐蝕，會(huì)深入到金屬的內(nèi)部，并進(jìn)一步破壞而引起斷裂。腐蝕的性能影響很大。由于密封件比主機(jī)的零件小，而且更精密，通常要選用比主機(jī)更耐腐蝕的材料。經(jīng)驗(yàn)表明，壓力、溫度和滑動(dòng)速度都能使腐蝕加速。密封件的腐蝕率隨溫度升高呈指標(biāo)規(guī)律增加。處理強(qiáng)腐蝕流體時(shí)，采用雙端面密封，可以比較大限度減輕腐蝕對(duì)密封件的影響，因?yàn)樗c工藝流體相接觸的零件數(shù)量少。這也是在強(qiáng)腐蝕條件下，選擇密封結(jié)構(gòu)的一條重要的原則。密封零件失效機(jī)械密封零件失效大部分是輔助密封圈失效，機(jī)械密封由于泄漏而不能正常工作的一個(gè)主要原因也是因?yàn)镺形圈失效引起的。O形圈失效的表現(xiàn)為老化、長(zhǎng)久性變形、溶脹變形、扭曲及擠出損傷。因此，在選用O形圈時(shí)應(yīng)考慮合成橡膠的安全使用溫度，盡可能地選用截面較大的橡膠O形圈，適當(dāng)提高硬度，采用溝槽式的裝配結(jié)構(gòu)，通過(guò)沉浸試驗(yàn)合理選材，必要時(shí)選用復(fù)合材料，如橡膠包覆聚四氟乙烯密封圈。</p><p> 使用過(guò)程中應(yīng)注意的問(wèn)題 </p> <p> 1 安裝中防止?jié)B漏的對(duì)策 </p> <p> 應(yīng)切實(shí)提高安裝工程的質(zhì)量意識(shí)，嚴(yán)格執(zhí)行安裝、檢修的制度化和標(biāo)準(zhǔn)化。以密封圈的松緊度為例，旋動(dòng)環(huán)密封圈過(guò)松會(huì)影響密封效果，但過(guò)緊也可能加劇其與軸套間的磨損，并易使旋動(dòng)環(huán)出現(xiàn)疲勞和變形;而靜止環(huán)雖然相對(duì)應(yīng)更緊一些，但過(guò)緊也會(huì)導(dǎo)致變形或出現(xiàn)脆裂，因此必須依照安裝指導(dǎo)書(shū)測(cè)量和調(diào)整，保證其壓縮量符合要求。 </p> <p> 2 機(jī)械密封使用中滲漏的預(yù)防和處理 </p> <p> 日常機(jī)械密封的管路系統(tǒng)檢查與使用，是機(jī)械密封正常運(yùn)行的保障，因此應(yīng)將設(shè)備管理的責(zé)任落實(shí)到人，制定嚴(yán)格的檢修維護(hù)制度并予以落實(shí)。檢查所有與機(jī)械密封運(yùn)行有關(guān)的閥門(mén)，保證安監(jiān)儀表完好;檢查機(jī)械密封自循環(huán)水、水泵涵體、機(jī)械密封水管路、換熱器及機(jī)械密封水的冷卻水的暢通，溫度無(wú)異常變化，發(fā)現(xiàn)問(wèn)題及時(shí)查明原因，并有針對(duì)性地解決。軸彎曲變形時(shí)橫截面形心沿與軸線垂直方向的線位移稱為撓度，機(jī)械密封要求兩個(gè)密封端面之間受力均勻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通靜密封,密封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245504228193359/1176730.jpg"></div><p> 機(jī)械密封的安裝前準(zhǔn)備工作及注意事項(xiàng) </p> <p> 以上檢修工作完成后，需要重新安裝機(jī)封，在安裝前先必須做好準(zhǔn)備工作： </p> <p> 1、如果更換新機(jī)封，須檢查機(jī)械密封的型號(hào)、規(guī)格是否正確，質(zhì)量是否符合標(biāo)準(zhǔn)； </p> <p> 2、靜環(huán)尾部防轉(zhuǎn)槽端與防轉(zhuǎn)銷(xiāo)頂部應(yīng)保持1mm-2mm的軸向間隙，以免緩沖失效； </p> <p> 3、動(dòng)、靜環(huán)端面用酒精清洗干凈，其余金屬件用汽油清洗并用潔凈的壓縮空氣吹干，仔細(xì)檢查務(wù)心保證動(dòng)、靜環(huán)密封面沒(méi)有任何損傷。裝配前，兩件“0”形橡膠密封圈應(yīng)涂上一層潤(rùn)滑油膏，動(dòng)、靜環(huán)端面不許涂油。 </p> <p> 機(jī)械密封的安裝 </p> <p> 機(jī)封安裝順序及注意事項(xiàng)如下： </p> <p> 1、在轉(zhuǎn)子與泵體的相對(duì)位置固定之后，確定機(jī)械密封的安裝位置，根據(jù)密封的安裝尺寸及靜環(huán)在壓蓋中的位置，測(cè)算出密封在軸或軸套上的定位尺寸； </p> <p> 2、安裝機(jī)封動(dòng)環(huán)，動(dòng)環(huán)安裝后須保證能其在軸上靈活移動(dòng)； </p> <p> 3、將組裝好的靜環(huán)部分和動(dòng)環(huán)部分組裝好； </p> <p> 4、把密封端蓋裝在密封體內(nèi)，并將螺絲擰緊。對(duì)于含有固體顆粒介質(zhì)，密封面進(jìn)入固體顆粒是導(dǎo)致使密封失效的主要原因。蘇州閥門(mén)密封</p><p style="text-indent:25px">針對(duì)密封實(shí)際應(yīng)用中出現(xiàn)的問(wèn)題，應(yīng)引起重視，分析問(wèn)題發(fā)生的原因，然后及時(shí)采取針對(duì)性的措施，保證效果。南通靜密封</p><p> 化工設(shè)備機(jī)械密封失效的過(guò)程中會(huì)呈現(xiàn)一定的癥狀，其常見(jiàn)的癥狀可以歸納為以下幾點(diǎn)：機(jī)械設(shè)備出現(xiàn)持續(xù)性的泄漏狀況，在化工設(shè)備工作時(shí)，會(huì)出現(xiàn)尖叫等情況。其次，當(dāng)化工設(shè)備在運(yùn)行的過(guò)程中，其密封面的外側(cè)會(huì)出現(xiàn)石墨粉塵，它們會(huì)凝聚在一塊。另者，當(dāng)化工設(shè)備在運(yùn)行時(shí)，其密封處發(fā)出爆鳴聲音，這也可能會(huì)是出現(xiàn)化工設(shè)備機(jī)械密封失效。同時(shí)，如果泵以及軸一直振動(dòng)，密封的使用壽命比較短，這也有可能是因?yàn)榛ぴO(shè)備機(jī)械密封失效。當(dāng)化工設(shè)備出現(xiàn)以上情況時(shí)，相關(guān)技術(shù)人員應(yīng)該對(duì)機(jī)械密封進(jìn)行檢查，進(jìn)一步確定是否是化工設(shè)備機(jī)械密封失效，同時(shí)找出其失效的原因。 </p> <p> 化工機(jī)械設(shè)備無(wú)泄漏是永恒的追求，就是因?yàn)檫@樣的追求推進(jìn)了磁力泵與屏蔽泵的良好發(fā)展?？墒且胝嬲刈龅綗o(wú)泄漏，那么經(jīng)歷的路程很長(zhǎng)。機(jī)械密封可謂是一種比較先進(jìn)的動(dòng)密封產(chǎn)品，主要是借助介質(zhì)壓力以及彈簧力，應(yīng)用一對(duì)平滑而且有流體膜的表面使其密封。和填料密封進(jìn)行比較，機(jī)械密封的效果更加突出，而且不磨損，應(yīng)用的年限較長(zhǎng)，消耗的具體功率比較小，所以，在進(jìn)行動(dòng)密封的位置應(yīng)用甚多。南通靜密封</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司成立于2014-07-02，是一家貿(mào)易型的公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下[ "輕型密封", "中型密封", 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