石家莊內(nèi)置釜用機(jī)械密封伊格爾博格曼機(jī)械密封供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 熱裝式密封環(huán)進(jìn)行強(qiáng)度校核的方法從傳遞扭矩和密封性的角度可以得出環(huán)與環(huán)座的過盈值，石家莊內(nèi)置釜用機(jī)械密封，對(duì)此還要進(jìn)行強(qiáng)度校核。對(duì)于環(huán)來講，大都是脆性材料（例如硬質(zhì)合金和石墨等），承受的是擠壓應(yīng)"><meta name="keywords" content="石家莊內(nèi)置釜用機(jī)械密封,釜用機(jī)械密封"><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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href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機(jī)械密封</a>?石家莊內(nèi)置釜用機(jī)械密封伊格爾博格曼機(jī)械密封供應(yīng)</p><div id="cgyvsph" class="leftbox clearfix"><h1>石家莊內(nèi)置釜用機(jī)械密封伊格爾博格曼機(jī)械密封供應(yīng)</h1><div id="ml8wgya" class="proBig"><div id="tnk2vxe" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525128056641/611607.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fuwyvm2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525128056641/611607.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8md38ce" 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>石家莊內(nèi)置釜用機(jī)械密封,釜用機(jī)械密封</p><p><span>***更新：</span>2020-12-19 14:19:17</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="p7tqn8t" 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="3ebyvce" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7segn8p" class="box"><p><p> 熱裝式密封環(huán)進(jìn)行強(qiáng)度校核的方法從傳遞扭矩和密封性的角度可以得出環(huán)與環(huán)座的過盈值，石家莊內(nèi)置釜用機(jī)械密封，對(duì)此還要進(jìn)行強(qiáng)度校核。對(duì)于環(huán)來講，大都是脆性材料（例如硬質(zhì)合金和石墨等），承受的是擠壓應(yīng)力，在該應(yīng)力作用下，不能斷裂和產(chǎn)生較大的變形。環(huán)中產(chǎn)生的擠壓應(yīng)力為σ1=2*Pm*K12/（K12-1）式中Pm——過盈界面上產(chǎn)生的接觸應(yīng)力P＝e/Cdm＿式中K1——系數(shù)。K1=dm/d1式中C——系數(shù)dm——界面直徑。強(qiáng)度校核應(yīng)滿足σ1＜[σ][σ]=σs/nsσs——材料的屈服極限ns——安全系數(shù)對(duì)一般的強(qiáng)度校核，安全系數(shù)n。＝1．8～2。環(huán)是脆件材料，考慮到密封端面上存在溫度差和不允許有較大變形的具體條件，石家莊內(nèi)置釜用機(jī)械密封，安全系數(shù)取4。也可校對(duì)其變形量。通常規(guī)定脆性材料的應(yīng)變值為。因此，實(shí)際工作中只校核其相對(duì)應(yīng)變值。即允許相對(duì)應(yīng)變量為0．05%。相對(duì)應(yīng)變量ε=σ1/E1=2PmK12/E1(K12-1)式中E1為環(huán)的彈性模量常用熱裝式密封環(huán)的環(huán)磁材料使用溫度根據(jù)泵送介質(zhì)腐蝕性和介質(zhì)溫度（或密封箱溫度）的不同采用不同的環(huán)座材料。常用的環(huán)座材料有1Cr18Ni9，石家莊內(nèi)置釜用機(jī)械密封、3Cr13、鈦合金和42#卡朋特合金（CAP42，相當(dāng)于國內(nèi)牌號(hào)4J42）。這些材料線膨脹系數(shù)和耐腐蝕性有較大的差別，使用溫度也不同。前面分析問題的時(shí)候，沒有考慮離心力的影響。天門212釜用機(jī)械密封件。石家莊內(nèi)置釜用機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊內(nèi)置釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525128056641/611607.png"></div><p> 其抗拉強(qiáng)度和硬度增加而韌性下降.塑料和橡膠的低溫性能比金屬材料更為敏感.一般情況下，塑料和橡膠只能在-50℃以上的溫度范圍使用。對(duì)于低溫泵，資料[13]介紹:丁睛橡膠的使用溫度限為-60℃氯丁橡膠為-65℃，硅酮橡膠為-80℃，氟化橡膠為-45℃，聚四氟乙烯為-79℃，并認(rèn)為使用以上這些材料作填料的機(jī)械密封以-70℃為使用極限。如果介質(zhì)溫度在-70℃以下，則使用波紋管型機(jī)械密封或者雙端面機(jī)械密封.資料[6]介紹聚四氟乙烯在氦的沸點(diǎn)(℃)還能保持一點(diǎn)柔軟性，適宜做低溫材料，但聚四氟乙烯的膨脹系數(shù)大，所以在-50~-100℃溫度使用時(shí)，常采用四氟填充石墨或玻璃纖維，而不用純四氟材料.此外，在低溫時(shí)，V形圈裝到軸套上后，動(dòng)環(huán)往往不能浮動(dòng)。因此，要注意V形圈的組裝尺寸。關(guān)于低溫機(jī)械密封及低溫泵材料如表10-4所示。低溫時(shí)PTFE的機(jī)械性能如表10-5所示。2.結(jié)構(gòu)要求在一般的0~-50℃低溫下，常采用單端面機(jī)械密封，有非平衡或平衡型結(jié)構(gòu)，但多數(shù)選用平衡型結(jié)構(gòu)，這是因?yàn)槊芊舛嗣娴囊盒萁?jīng)摩擦后溫度升高，液膜壓力隨之升高而將密封面推開，泄漏加劇。因此，低溫時(shí)的端面比壓要選高值。在液溫低于-70℃時(shí)，則采用波紋管密封或雙端面密封.不過使用雙端面密封時(shí)。津南區(qū)專業(yè)生產(chǎn)釜用機(jī)械密封滄州FMY212釜用機(jī)械密封廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊內(nèi)置釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525993574219/7876503.png"></div><p> 五、與釜用機(jī)械密封有關(guān)的幾個(gè)參數(shù)1.使用壽命釜用機(jī)械密封的使用壽命一般規(guī)定半年以上.其實(shí)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(guān).圖10-6為EKATO公司對(duì)不同尺寸的密封在不同轉(zhuǎn)速下的使用壽命試驗(yàn)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(guān)，，每個(gè)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(jī)械密封機(jī)械密封的工作溫度超過80℃時(shí)就作為高溫機(jī)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(xiàng):密封端面液體汽化，摩擦副的熱應(yīng)力和熱變雍，組合件、鑲嵌件可能因配合不當(dāng)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(qiáng)度降低，材料的腐蝕和磨損加快.一、高溫機(jī)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(jī)械密封仍能適用于高溫工作條件，簡(jiǎn)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(jī)械密封或金屬波紋管與普通機(jī)械密封相結(jié)合的密封結(jié)構(gòu)從耐熱性能來看。</p><p> 由介質(zhì)壓力變化引起端面比壓的增量大于或等于介質(zhì)壓力的增量。平衡型：載荷系數(shù)K<1的密封，也就是由介質(zhì)壓力變化引起的端面比壓的增量小于介質(zhì)壓力的增量，稱為平衡型密封。根據(jù)密封端面的數(shù)量和布置方式可分為單端面、雙端面及多端面機(jī)械密封。兩組密封端面“背靠背”（圖10a）或“面對(duì)面”（圖10b）布置的密封叫雙端面機(jī)械密封。對(duì)于工作介質(zhì)有毒、易爆、易燃、易揮發(fā)、易結(jié)晶、高溫、低溫或工作介質(zhì)是氣體，或?qū)τ诟哒婵斩鹊拿芊?，可用雙端面密封。此時(shí)雙端面之間的密封腔引入封液進(jìn)行堵封、潤滑和冷卻。一般情況下封液選用潔凈和潤滑性好的介質(zhì)。二、串聯(lián)機(jī)械密封應(yīng)用的工況兩組或兩組以上同向布置的單端面機(jī)械密封組成串聯(lián)機(jī)械密封（圖11）。這種密封方式使密封腔的壓力逐級(jí)降低，介質(zhì)不至外漏。串聯(lián)密封一般情況下很少采用，只有在壓力很高時(shí)采用。補(bǔ)償機(jī)構(gòu)為波紋管，密封環(huán)（動(dòng)環(huán)或靜環(huán)）和波紋管制成一個(gè)整體，中間沒有輔助密封圈（見圖8）稱為波紋音式機(jī)械密封。波紋音式機(jī)械密封減少了一個(gè)泄漏點(diǎn)；同時(shí)減少了補(bǔ)償機(jī)構(gòu)的摩擦阻力，改善了追隨性；對(duì)于焊接金屬波紋管密封（圖8b）使用溫度不受輔助密封圈的限制；對(duì)于四氟波紋管密封（圖8a）可用于腐蝕性介質(zhì)中。秦皇島M461釜用機(jī)械密封廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊內(nèi)置釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525145751953/9875963.png"></div><p> 也采用316型不銹鋼做彈簧材料.碟形彈簧用于乙醛裝置.這種短形結(jié)構(gòu)彈簧，使密封更加緊湊.碟形彈簧材料用HastelloyC4合金(相當(dāng)于DIN材料號(hào))和GrNiMo不銹鋼材料.(5)波紋管材料有Inconel}鉻鎳鐵洽金、F聚四氟乙烯、氯磺化聚乙烯橡(Iiypalon)和丁睛橡膠.金屬波紋管采用焊接結(jié)構(gòu)，(6)V形密封圈采用聚四氟乙烯材料，典型牌號(hào)是泰弗隆(Teflon).O形密封圈采用丁睛橡膠(NBR)和氟橡膠(Viton}，有的密封公司為了提高耐蝕性能，建議用橡膠圈外包覆聚四氟乙烯的0形圈。有幾個(gè)密封公司推薦既具有橡膠彈性又具有聚四氟乙烯耐蝕性能的材料kalrez，它是美國杜邦公司新近推出的合成橡膠材料，已有Kalrez材料的0形圈系列產(chǎn)品.5公制密封件占大多數(shù)。從現(xiàn)有引進(jìn)的機(jī)械密封套數(shù)可以看出，英制密封只占8%左右。另外從英國克蘭密封公司的產(chǎn)品介紹中也可看出該公.司逐步向公制化過渡，有的產(chǎn)品則是公、英制同時(shí)生產(chǎn)。6.推行IS03069-74密封腔尺寸標(biāo)準(zhǔn)。自1974年國際標(biāo)準(zhǔn)化組織制訂IS03069密封腔尺寸的規(guī)定以來，各國密封公司相繼采用IS03069-74標(biāo)準(zhǔn)，幾個(gè)大的密封公司在產(chǎn)品樣本中幾乎都注明哪些品種適用于ISO-3069的尺寸系列.這些公司有:英國克蘭公司，日本比拉公司、日本Eagl。德州212釜用機(jī)械密封件。石家莊內(nèi)置釜用機(jī)械密封</p><p style="text-indent:25px">濰坊2009釜用機(jī)械密封件。石家莊內(nèi)置釜用機(jī)械密封</p><p> 其缺點(diǎn)是有的波紋管彈力較小，需加輔助彈簧，如（圖8a）所示。集裝式機(jī)械密封是將普通的機(jī)械密封、軸套和密封壓蓋預(yù)先組合成一個(gè)整體，將其安裝到泵上后，不做任何調(diào)整（包括彈簧的壓縮量），只固定軸套和壓蓋，再把剖分式卡環(huán)取下（圖12中的A）即可投入使用。由此可見，卡環(huán)的（軸向）寬度等于彈簧的壓縮量，并且，從外部就可以知道該值的大小和變化情況。事先組裝，容易保證密封的安裝質(zhì)量，可減少因安裝不良引起的失效。近年來集裝式密封發(fā)展很快，因卡環(huán)的結(jié)構(gòu)、軸套與軸的傳動(dòng)以及軸與軸套之間的密封等方面的不同，出現(xiàn)了許多種集裝式密封。三、國產(chǎn)104型機(jī)械密封國產(chǎn)104型機(jī)械密封為內(nèi)裝、內(nèi)流、單端面、單彈簧、非平衡型密封，輔助密封圈有V形和O形兩種型式（圖13）。3104型機(jī)械密封中的字母“B”表示平衡型密封，其余結(jié)構(gòu)和104型完全相同。B104型密封相當(dāng)于舊標(biāo)準(zhǔn)（JB1472－75）的110型(GY型)。兩種密封型式工作條件基本相同，僅壓力不同。密封腔內(nèi)的溫度一20～80℃，轉(zhuǎn)速不大于3000r／min，介質(zhì)為清水、油類及其它弱腐蝕性液體。104型密封腔中的壓力為0～0．8MPa，而B104型適用壓力為0．6～3．0MPa。經(jīng)過二十多年的實(shí)踐，證明這兩種密封結(jié)構(gòu)簡(jiǎn)單，使用可靠。因此。石家莊內(nèi)置釜用機(jī)械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2473008.html</p></div></div></div></div></div><div id="sc2m2df" class="page-right twoColRt"><div id="a88eyfm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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