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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ajlktfg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990554648437/1913587.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fyfzqxj" 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>廣西ih泵用機(jī)械密封,泵用機(jī)械密封</p><p><span>***更新：</span>2020-10-17 11:08:13</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="3eq8b9d" 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(jī)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(jī): </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="ba842oa" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3cjduvh" class="box"><p><p> 無壓燒結(jié)SiC?鎳基硬質(zhì)合金金屬件材料：?彈性元件常用材料：?彈簧：NS333（多彈簧），316L(單彈簧)?金屬波紋管：Inconel718（C型），NS333（B型）?金屬部件材料：?316L?備注：對(duì)于合金泵，機(jī)械密封的金屬件材料與泵過流部件等同，或者性能高于泵過流部件材料輔助密封材料：?機(jī)械密封輔助密封材料要求：彈性，耐蝕性，摩擦系數(shù)，耐溫，廣西ih泵用機(jī)械密封，廣西ih泵用機(jī)械密封，耐磨，機(jī)械性能（延伸，抗拉），加工性，抗化學(xué)性能（溶漲，溶解，廣西ih泵用機(jī)械密封，變形，老化，污染）。?合成橡膠：丁腈橡膠（NBR）-丁二烯和丙烯晴共聚物-耐油;氟橡膠（FKM，VITON）-含氟烯烴共聚物-耐溫，耐油，耐蝕;乙丙橡膠（EPDM，EPM）-丙烯烴共聚物-耐溶劑，耐蒸汽;硅橡膠（Si）-二甲基硅烷與有機(jī)硅單體聚合物-熱穩(wěn)定性;氯丁橡膠（MPVQ，MVQ）-耐熱性，耐蝕性，耐臭氧性，耐侯性;全氟醚橡膠（FFKM，KALREZ）-全氟高聚彈性體-耐熱，耐蝕，抗老化;?聚四氟乙烯包覆橡膠/聚四氟乙烯（PTFE）-耐蝕;?柔性石墨（膨脹石墨）-耐蝕，耐高溫-一次性使用。內(nèi)蒙古福斯泵用機(jī)械密封型號(hào)。廣西ih泵用機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西ih泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990554648437/1913587.png"></div><p> 對(duì)于非金屬材料的墊片，其壓力還會(huì)與工作溫度有關(guān)系，通常溫度乘以壓力的值（即PxT值）有一極限值，所以在選擇其工作壓力時(shí)，還要考慮墊片能承受的PxT值。下圖為GARLOCK常見壓制墊片的PxT值圖，不同型式的墊片所能夠承受的壓力也是不一樣的。圖7GARLOCK常見壓制墊片的P╳T值圖圖8為各種型式的墊片所適用的法蘭壓力等級(jí)尺寸在滿足法蘭粗糙度和不平度條件時(shí)，盡可能的選擇薄的墊片。墊片的厚度與其型式、材料、直徑、密封面的加工狀況和密封介質(zhì)等相關(guān)。對(duì)于大多數(shù)非金屬板材墊片而言，薄的墊片抵抗應(yīng)力松弛的能力也比較大。因薄的墊片其內(nèi)側(cè)跟介質(zhì)接觸的面積也小，所以沿墊片本體滲漏也隨之減少，并且此情況下墊片所承受的吹出力也小，墊片也就不容易被吹出，圖9形象的展示了薄墊片的抗吹出能力要比厚墊片強(qiáng)。當(dāng)然也可以參考?jí)|片標(biāo)準(zhǔn)選擇墊片厚度以及其它尺寸。圖9同樣工況下不同厚度墊片的徑向受力示意圖此外，由于墊片通常采用螺栓法蘭連接結(jié)構(gòu)，因此裝配時(shí)需要將螺栓預(yù)緊到足以達(dá)到密封的要求，另外，這一結(jié)構(gòu)中的墊片更是一個(gè)受很多因素影響的密封元件，因而如何控制預(yù)緊力是一個(gè)十分棘手的問題。各種墊片需要的壓緊載荷也各不相同，對(duì)于特殊要求的墊片密封。廣西ih泵用機(jī)械密封天津格蘭富泵用機(jī)械密封型號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西ih泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990601464844/125984.png"></div><p> 氣體不會(huì)在泵的中部滯留·(5)無軸的彎曲問題，軸封可遠(yuǎn)離泵體，減少熱的影響。電機(jī)安裝架為遮風(fēng)結(jié)構(gòu)，所以電機(jī)的溫升對(duì)泵幾乎沒有影響。(6)泵殼埋于地下，易于保冷.所以，石油液化氣用的低溫泵常用以上這種結(jié)構(gòu).2.低溫甲烷泵機(jī)械密封甲烷液化氣在-99℃時(shí)的蒸汽壓接近3MPa.乙烯裝置脫甲烷塔底泵在-53℃時(shí)出口壓力近似3MPa，采用雙端面串聯(lián)式機(jī)械密封，它是比拉公司BB81-K7+BB81B-S7型，尺寸為45x39與50x45(圖10-20)。耐腐蝕機(jī)械密封在腐蝕性介質(zhì)中，機(jī)械密封的零件受到介質(zhì)的強(qiáng)烈侵蝕，摩擦面同時(shí)受到.腐蝕和磨損，這種現(xiàn)象稱為“磨蝕“，其腐蝕速度約為無摩擦?xí)r的10~50倍.某些結(jié)構(gòu)材料具有優(yōu)良的耐蝕性能，耐磨性能卻較差;而另一些結(jié)構(gòu)材料雖具有良好的耐磨性，耐蝕性卻很差.因此，摩擦副應(yīng)選擇既要耐腐蝕又要耐磨，輔助密封圈、彈擠和結(jié)構(gòu)件也要有良好的耐蝕性能.在設(shè)計(jì)耐腐蝕機(jī)械密封時(shí)，一般采取以下一些措施:1.結(jié)構(gòu)上的隔離措施采用外裝式結(jié)構(gòu)，經(jīng)過適當(dāng)?shù)倪x擇，外裝式密封可以做到無金屬件與工藝介質(zhì)接觸，小的零件如彈簧、銷子可不受工藝介質(zhì)腐蝕.外裝式有普通型機(jī)械密封和波紋管型機(jī)械密封兩種，’以波紋管型密封結(jié)構(gòu)較好(圖10-21).如密封件材質(zhì)耐蝕能力許可。</p><p> 且接觸應(yīng)力不均勻，使之產(chǎn)生機(jī)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(yīng)力也隨著發(fā)生變化，這種變化對(duì)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(jiǎn)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(yùn)轉(zhuǎn)時(shí)輔助密封圈被嚴(yán)重磨損，會(huì)出現(xiàn)大量泄漏。而圖23b是在圖23a的基礎(chǔ)上改進(jìn)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(shè)置環(huán)形槽（圖23c），使硬質(zhì)合金環(huán)外圓柱面的接觸應(yīng)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(diǎn)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(shí)無任何變化。但是導(dǎo)熱性能較差，*為YG6的1／3；線膨脹系數(shù)大。綿陽飛力泵用機(jī)械密封泄露。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西ih泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990676972656/2521191.png"></div><p> 機(jī)械密封中的非金屬摩擦副多采用石墨浸漬材料制成，所以也要根據(jù)不同的工作溫度選用不同種類的浸漬石墨。一般浸巴氏合金石墨適用溫度范圍小于150℃，浸樹脂石墨適用溫度范圍為170~200℃，浸銅、鋁、鉛的石墨可在小于400℃的工作條件下使用。動(dòng)環(huán)組件應(yīng)盡可能選用膨脹系數(shù)相近的材料，以防止高溫下動(dòng)環(huán)和動(dòng)環(huán)座的連接松動(dòng)。3．選擇金屬波紋管機(jī)械密封。金屬波紋管密封近年來在高溫密封中使用很多，并且取得了很好的效果。在該種機(jī)封中，金屬波紋管取代了普通機(jī)封中的彈簧，省去了動(dòng)環(huán)輔助密封圈，不需要克服動(dòng)環(huán)補(bǔ)償時(shí)與轉(zhuǎn)軸的摩擦和磨損，因此在高溫下使用，一般都能取得不錯(cuò)的效果。二、低溫下的機(jī)械密封在煉油化工裝置中，低溫輸送的介質(zhì)一般都具有豁度小、潤(rùn)滑性差、容易氣化的特點(diǎn)，而且介質(zhì)在氣化時(shí)大量吸熱，使周圍溫度急劇下降，造成空氣中水氣的凝結(jié)，導(dǎo)致端面及其周圍結(jié)冰，使端面貼合不嚴(yán)引起泄漏。同時(shí)，因潤(rùn)滑性差，端面摩擦產(chǎn)生的熱量較多，若不能及時(shí)轉(zhuǎn)移，必然會(huì)加劇端面處的氣化，造成惡性循環(huán)，加速密封面的早期失效。另外，低溫密封的輔助密封圈在低溫下發(fā)硬失彈也容易導(dǎo)致泄漏。對(duì)低溫密封，除了選擇合適的輔助密封圈材質(zhì)外，還要注意以下幾點(diǎn)。綿陽渣漿泵用機(jī)械密封泄露。廣西ih泵用機(jī)械密封</p><p style="text-indent:25px">寶雞蘇爾壽泵用機(jī)械密封選型。廣西ih泵用機(jī)械密封</p><p> 機(jī)械密封是一種旋轉(zhuǎn)機(jī)械的軸封裝置，機(jī)械密封又叫端面密封，在國(guó)家有關(guān)標(biāo)準(zhǔn)中是這樣定義的:"由至少一對(duì)垂直于旋轉(zhuǎn)軸線的端面在流體壓力和補(bǔ)償機(jī)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(duì)滑動(dòng)而構(gòu)成的防止流體泄漏的裝置"。常用機(jī)械密封結(jié)構(gòu)由靜止環(huán)(靜環(huán))、旋轉(zhuǎn)環(huán)(動(dòng)環(huán))、彈性元件彈簧座、緊定螺釘、旋轉(zhuǎn)環(huán)輔助密封圈和靜止環(huán)輔助密封圈等元件組成，防轉(zhuǎn)銷固定在壓蓋上以防止靜止環(huán)轉(zhuǎn)動(dòng)。機(jī)械密封在日常檢修中，常常會(huì)存在以下幾個(gè)誤區(qū)：誤區(qū)一：彈簧壓縮量越大密封效果越好？！其實(shí)不然，彈簧壓縮量過大，可導(dǎo)致摩擦副急劇磨損，瞬間燒損；過度的壓縮使彈簧失去調(diào)節(jié)動(dòng)環(huán)端面的能力，導(dǎo)致密封失效。誤區(qū)二：動(dòng)環(huán)密封圈越緊越好？！其實(shí)動(dòng)環(huán)密封圈過緊有害無益。一是加劇密封圈與軸套間的磨損，泄漏；二是增大了動(dòng)環(huán)軸向調(diào)整、移動(dòng)的阻力，在工況變化頻繁時(shí)無法適時(shí)進(jìn)行調(diào)整；三是彈簧過度疲勞易損壞；四是使動(dòng)環(huán)密封圈變形，影響密封效果。誤區(qū)三：靜環(huán)密封圈越緊越好？！靜環(huán)密封圈基本處于靜止?fàn)顟B(tài)，相對(duì)較緊密封效果會(huì)好些，但過緊也是有害的。一是引起靜環(huán)密封因過度變形，影響密封效果；二是靜環(huán)材質(zhì)以石墨居多，一般較脆，過度受力極易引起碎裂。廣西ih泵用機(jī)械密封</p><p style="text-indent:25px">伊格爾博格曼機(jī)械密封（張家港）有限公司主要經(jīng)營(yíng)范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下機(jī)械密封，泵用機(jī)械密封，釜用機(jī)械密封，攪拌器機(jī)械密封深受客戶的喜愛。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1592880.html</p></div></div></div></div></div><div id="m78v8ac" class="page-right twoColRt"><div id="r7ja33a" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lvhtvh7" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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