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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="582vx8h" 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>通化雙輪泵用機(jī)械密封,泵用機(jī)械密封</p><p><span>***更新：</span>2020-11-29 09:17:08</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="x8ofh9x" 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="lzr82ac" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qogyfza" class="box"><p><p> 七、目前應(yīng)用的密封種類(lèi)根據(jù)制造方法和材料的不同，目前應(yīng)用的密封環(huán)有整體式密封環(huán)（用同一種材料制造）、組合式密封環(huán)、表面堆焊硬質(zhì)合金和噴涂陶瓷等多種結(jié)構(gòu)。整體式密封環(huán)種類(lèi)：這種密封環(huán)因用同一種材料制成，材料的性能在密封環(huán)的各個(gè)部位均勻一致，沒(méi)有組合式密封環(huán)泄漏和分離的缺陷，也沒(méi)有電化學(xué)腐蝕的可能。制造軟環(huán)大都用石墨，制造硬環(huán)時(shí)可用各種合金鋼，如軸承鋼（GCr9）、高速鋼（W18CrV）及其他合金鋼（如40Cr、3Cr13等），也有的用合金鑄鐵（如硅、鉻和鎳鑄鐵）。采用這些材料時(shí)，都要輔之以適當(dāng)?shù)臒崽幚砉に?，以提高其硬度和耐磨性。這類(lèi)材料價(jià)格較低，如果使用恰當(dāng)，也有較長(zhǎng)的壽命。為了進(jìn)一步提高硬度和延長(zhǎng)使用壽命，可采用硬質(zhì)合金制造。常用的硬質(zhì)合金為鉆基碳化鎢，性能較好，但價(jià)格高。鋼結(jié)硬質(zhì)合金的價(jià)格較低。為了提高在腐蝕介質(zhì)中的耐蝕性，有鎳基碳化鎢，而哈氏合金有更高的耐蝕性，但價(jià)格昂貴。此外，通化雙輪泵用機(jī)械密封，通化雙輪泵用機(jī)械密封，還有用碳化硅及其他陶瓷材料制造的密封環(huán)。出現(xiàn)組合式由封環(huán)的原因碳化鎢等材料有優(yōu)良的性能，通化雙輪泵用機(jī)械密封，但是價(jià)格高，加工困難，限制了它的使用。為解決這個(gè)矛盾，出現(xiàn)了組合式密封環(huán)。密封端面采用硬質(zhì)合金，密封環(huán)的基體。山西飛力泵用機(jī)械密封型號(hào)。通化雙輪泵用機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="通化雙輪泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990586083984/8203619.png"></div><p> 輔助密封圈是機(jī)械密封上**薄弱環(huán)節(jié)，當(dāng)溫度超過(guò)80℃時(shí)普通橡膠已不適用，溫度超過(guò)230~250℃，聚四氟乙烯也不能使用.此外，由于高溫、易燃介質(zhì)的裂解物沉積會(huì)使彈簧阻塞.所以，當(dāng)溫度超過(guò)220℃時(shí)就應(yīng)采用金屬波紋管型機(jī)械密封，或者采用金屬波紋管與普通機(jī)械密封相結(jié)合的密封結(jié)構(gòu).3.采取冷卻措施在高溫下，為了使密封可靠運(yùn)行，盡可能對(duì)機(jī)械密封進(jìn)行冷卻，要避免在干摩擦狀態(tài)下工作.必須保持密封間隙中的溫度在密封液的汽化溫度以下.冷卻措施就是對(duì)密封進(jìn)行溫度控制，常用的溫度控制有沖洗、阻封、加強(qiáng)液體循環(huán)等(詳見(jiàn)第七章***節(jié)溫度控制裝置)。在高溫下，還可采用以下措施:(1)用Diphy1(二苯及二苯氧化物的混合物)作為阻封液，它是冷態(tài)無(wú)壓的換熱劑(阻封液由泵效螺旋輸送);(2)在超高溫下或者沒(méi)有適當(dāng)?shù)囊后w時(shí)，也可通人氮?dú)?、氬氣，以防止空氣引起的氧?4.鑲嵌摩擦副問(wèn)題密封環(huán)鑲嵌是充分利用端面材料和基體材料的特性，提高材料使用價(jià)值，一般對(duì)高溫密封采用熱鑲法.但是，由于端面耐磨材料和基體材料的熱脹系數(shù)有差異，在高溫下使用時(shí)會(huì)產(chǎn)生摩擦環(huán)松動(dòng)、脫落。因此，對(duì)鑲嵌結(jié)構(gòu)的摩擦環(huán)采用的溫度應(yīng)予以特別注意.熱鑲結(jié)構(gòu)產(chǎn)生松動(dòng)、脫落的原因，除了與使用溫度有關(guān)外。香坊區(qū)南方泵用機(jī)械密封延安格蘭富泵用機(jī)械密封選型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="通化雙輪泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990573378906/8594308.png"></div><p> 九、波紋管式機(jī)械密封波紋管式機(jī)械密封的應(yīng)用范圍很廣，從低溫到高溫，從中性介質(zhì)到腐蝕性介質(zhì)，從低速到高速，從普通到苛刻的工作條件都可選用。所有這些可通過(guò)變更波紋管的幾何形狀（如內(nèi)外徑、波片厚度和波數(shù)等）與材料彈性模量，改變波紋管的彈率。根據(jù)介質(zhì)的腐蝕性能，選用不同的波紋管材料等。例如對(duì)工作壓力和溫度都不高的中性介質(zhì)（油和水等），可選用橡膠制造的簡(jiǎn)易波紋管密封；在腐蝕性介質(zhì)中（酸或減等），可選用四氟制造的波紋管密封；高溫和高速下，可采用焊接金屬波紋管機(jī)械密封等。焊接金屬波紋管密封的特點(diǎn)焊接金屬波紋管機(jī)械密封用的波紋管是由軋制的金屬薄板沖裁成環(huán)形波紋狀的型面，波形多采用S形，將許多個(gè)波片重疊起來(lái)，分別在環(huán)形的外緣和內(nèi)緣進(jìn)行焊接，組成一個(gè)波紋管，兩端再與傳動(dòng)座和動(dòng)環(huán)焊接成整體。除了不用輔助密封圈外，還具備使用溫度范圍***的特點(diǎn)，**高可達(dá)600度，**低可到一200度。此外高速下對(duì)軸的振動(dòng)和振擺適應(yīng)性較強(qiáng)，有很好的補(bǔ)償能力，保證密封端面良好地貼合。但是長(zhǎng)期在高溫下工作的焊接金屬波紋管密封，波紋管的彈率有減小的趨勢(shì)（俗稱(chēng)“失彈”），使用受到一定的限制。</p><p> 4）安裝時(shí)在與密封相接觸的表面應(yīng)涂一層清潔的機(jī)械油，以便能順利安裝;（5）安裝靜環(huán)壓蓋時(shí)，擰緊螺絲必需受力平均，保證靜環(huán)端面與軸心線的垂直要求;（6）安裝后用手推動(dòng)動(dòng)環(huán)，能使動(dòng)環(huán)在軸上靈活移動(dòng)，并有一定彈性;（7）安裝后用手盤(pán)動(dòng)轉(zhuǎn)軸、轉(zhuǎn)軸應(yīng)無(wú)輕重感覺(jué);（8）設(shè)備在運(yùn)轉(zhuǎn)前必需布滿(mǎn)介質(zhì)，以防止干摩擦而使密封失效;（9）對(duì)易結(jié)晶、顆粒介質(zhì)，對(duì)介質(zhì)溫度≥80度時(shí)，應(yīng)采取相應(yīng)的沖刷、過(guò)濾、冷卻措施；（10）安裝時(shí)在與密封相接觸的表面應(yīng)涂一層清潔的機(jī)械油，要特別留意機(jī)械油的選擇對(duì)于不同的輔助密封材質(zhì)，避免造成O型圈侵油膨脹或加速老化，造成密封提前失效。3、機(jī)械密封的泄漏點(diǎn)大致為以下幾個(gè)位置：（1）動(dòng)靜環(huán)端面處；（2）靜環(huán)與靜環(huán)盒的輔助密封處；（3）靜環(huán)壓蓋與泵體之間密封處；（4）動(dòng)環(huán)結(jié)構(gòu)配合處；（5）軸套與泵軸之間密封處（有軸套時(shí)）；（6）動(dòng)環(huán)與軸套密封處（有軸套時(shí)）。4、機(jī)械密封常用材料和使用環(huán)境的一般情況（個(gè)人推薦）（1）凈水，常溫——(動(dòng)環(huán))9CR18，1CR13堆焊鈷鉻鎢，(靜環(huán))浸樹(shù)脂石墨，青銅，酚醛塑料；（2）河水(含泥沙)，常溫——(動(dòng)環(huán))碳化鎢，(靜環(huán))碳化鎢；（3）海水，常溫——(動(dòng)環(huán))碳化鎢，1CR13堆焊鈷鉻鎢，。山西蘇爾壽泵用機(jī)械密封型號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="通化雙輪泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990541582031/8933132.png"></div><p> 輸送泵輸送的介質(zhì)為甲醇，甲醇揮發(fā)度高、無(wú)色、易燃易爆、有毒。易燃，其蒸氣與空氣可形成性混合物。遇明火、高熱能引起燃燒。與氧化劑接觸發(fā)生化學(xué)反應(yīng)或引起燃燒。在火場(chǎng)中，受熱的容器有危險(xiǎn)。能在較低處擴(kuò)散到相當(dāng)遠(yuǎn)的地方，遇明火會(huì)引著回燃。燃燒分解一氧化碳、二氧化碳、水。有劇毒。（3）輸送泵輸送甲醇危險(xiǎn)物料的安全性比較根據(jù)甲醇泵輸送甲醇危險(xiǎn)物料可能存在的安全風(fēng)險(xiǎn)和泵結(jié)構(gòu)特點(diǎn)及軸封特性分析可知，單端面密封離心泵、雙端面密封離心泵、屏蔽泵在輸送甲醇危險(xiǎn)物料時(shí)：①蔽泵可以達(dá)到無(wú)泄漏的要求，所以安全。②雙端面密封離心泵具有的兩級(jí)密封，當(dāng)內(nèi)機(jī)封泄漏時(shí)，會(huì)先泄漏到外級(jí)機(jī)封的沖洗冷卻系統(tǒng)壓力罐，而沒(méi)有直接泄漏到環(huán)境中來(lái)，確保初步的安全，所以相對(duì)比較安全。③單端面密封離心泵只有一級(jí)密封，當(dāng)機(jī)封泄漏時(shí)，泵體介質(zhì)會(huì)直接泄漏到環(huán)境中，所以安全性一般。（4）經(jīng)濟(jì)性的比較對(duì)于經(jīng)濟(jì)性的比較，單端面密封離心泵和雙端面密封離心泵設(shè)備投資費(fèi)用稍微低，但后期的設(shè)備故障率高，檢修維護(hù)多；而屏蔽泵因制造工藝技術(shù)要求高，則前期設(shè)備投資費(fèi)用高，一般為國(guó)產(chǎn)的離心泵的2-4倍，但后期的設(shè)備檢修維護(hù)會(huì)相對(duì)低。記相關(guān)的統(tǒng)計(jì)。圖木舒克循環(huán)泵用機(jī)械密封選型。長(zhǎng)春泵用機(jī)械密封型號(hào)</p><p style="text-indent:25px">山西福斯泵用機(jī)械密封型號(hào)。通化雙輪泵用機(jī)械密封</p><p> 或內(nèi)徑D1)的極限偏差按表9-5的規(guī)定。彈簧自由高度Ho的極限偏差按表9-6的規(guī)定。彈簧在壓縮到全變形量的10%時(shí)，其正常節(jié)距圈不應(yīng)接觸。兩端面經(jīng)過(guò)磨削的彈簧，在自由狀態(tài)下，彈簧軸心線對(duì)兩端面的垂直度偏差<。兩端面并緊并磨平的彈簧，支承圈磨平部分大于或等于3/4圈。其表面粗糙度Ra為，端頭厚度不小于d/8。彈簧表面應(yīng)光滑，不得有裂紋、起刺等肉眼可見(jiàn)的有害缺陷.近幾年很多引進(jìn)機(jī)械密封使用了波形彈簧，其中纏繞式波型彈簧用量較多。纏繞式波形彈簧結(jié)構(gòu)見(jiàn)圖9-3，其具有強(qiáng)度高、柔性好、結(jié)構(gòu)形式緊湊、安裝空間小等優(yōu)點(diǎn)。它是用專(zhuān)用纏繞彈簧設(shè)備加工的，纏繞式波型彈簧技術(shù)要求如下:纏繞式波型彈簧的波峰應(yīng)呈圓弧形，不允許出現(xiàn)平頂或尖頂。多層纏繞式波型彈簧相鄰上下層的波峰及波谷要對(duì)齊.圓周方向角度錯(cuò)位不大于5°。多層纏繞式波型彈簧相鄰上下層的徑向錯(cuò)邊不大于。纏繞式波型彈簧內(nèi)外徑尺寸偏差應(yīng)符合表9-7的規(guī)定。纏繞式波形彈簧自由高度尺寸偏差應(yīng)符合表9-8、表9-9的規(guī)定。纏繞式波形彈簧必須經(jīng)過(guò)消除應(yīng)力處理。殘余變形不應(yīng)超時(shí)(單片波型彈簧小于)。同一個(gè)纏繞式波形彈簧各波高度差應(yīng)不超過(guò)表9-10及表9-11的規(guī)定(多層纏繞式波型彈簧僅指中間層的各波高度)。通化雙輪泵用機(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(zhuān)業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋機(jī)械密封，泵用機(jī)械密封，釜用機(jī)械密封，攪拌器機(jī)械密封等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造高品質(zhì)服務(wù)體驗(yàn)，為客戶(hù)成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2194119.html</p></div></div></div></div></div><div id="rfcpbar" class="page-right twoColRt"><div id="dhew3s3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8qcuoax" 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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