太原搪玻璃釜用機械密封伊格爾博格曼機械密封供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 比YG6大1倍多，太原搪玻璃釜用機械密封，為／℃（10～500℃時）。這兩點決定了耐熱沖擊性能不如YG6好。正因為線膨脹系數(shù)較大，和馬氏體不銹鋼接近（10～500℃時為11X10-6／℃），為"><meta name="keywords" content="太原搪玻璃釜用機械密封,釜用機械密封"><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 http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> 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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ae0yoci" 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="s2ag8mc" 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(guān)鍵詞：</span>太原搪玻璃釜用機械密封,釜用機械密封</p><p><span>***更新：</span>2021-01-13 11:29:31</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cmaykg0" 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="ykiye8o" class="page-proshow02"><p class="title">詳細說明</p><div id="kuk0oes" class="box"><p><p> 比YG6大1倍多，太原搪玻璃釜用機械密封，為／℃（10～500℃時）。這兩點決定了耐熱沖擊性能不如YG6好。正因為線膨脹系數(shù)較大，和馬氏體不銹鋼接近（10～500℃時為11X10-6／℃），為和環(huán)座焊接提供了有利條件。焊接時需在環(huán)和座之間鋪放一層鎳基粉末，置于真空電阻爐中，經(jīng)1100℃高溫熔焊，然后進行回火處理，以消除焊接應(yīng)力。由于是焊接的密封環(huán)，硬質(zhì)合金環(huán)的厚度可以比YG6薄，毛坯的厚度也只有3～3．5mm。以因密度小，是YG6的一半（7~），太原搪玻璃釜用機械密封，因此，可節(jié)約貴重金屬，價格較低。這種合金的牌號為CN15，其中Cr3C285%，Ni為15%，由北京硬質(zhì)合金廠研制成功。熱裝式密封環(huán)以其性能***應(yīng)用，但過盈量過大則硬質(zhì)合金在較大擠壓應(yīng)力作用下產(chǎn)生變形；過盈量過小，使用時會松脫。經(jīng)長期觀察分析，熱裝式密封環(huán)松脫主要是由于環(huán)座和硬質(zhì)合金環(huán)兩者線膨脹純利系數(shù)的差別，工作出現(xiàn)間隙。由此可見，熱裝式密封環(huán)失效的根本原因主要有二：一是過盈值小，三是環(huán)座材料選擇不當，線膨脹系數(shù)太大。確定過盈值應(yīng)遵循的原則：1）從傳遞扭矩的角度考慮過盈值應(yīng)足夠大。2）從環(huán)的變形的角度考慮過盈值不可過大。綜合起來，在滿足環(huán)和座傳遞扭矩的情況下，太原搪玻璃釜用機械密封，取小的過盈值。濰坊MR-D釜用機械密封件。太原搪玻璃釜用機械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原搪玻璃釜用機械密封,釜用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525128056641/611607.png"></div><p> 氣體不會在泵的中部滯留·(5)無軸的彎曲問題，軸封可遠離泵體，減少熱的影響。電機安裝架為遮風結(jié)構(gòu)，所以電機的溫升對泵幾乎沒有影響。(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.低溫甲烷泵機械密封甲烷液化氣在-99℃時的蒸汽壓接近3MPa.乙烯裝置脫甲烷塔底泵在-53℃時出口壓力近似3MPa，采用雙端面串聯(lián)式機械密封，它是比拉公司BB81-K7+BB81B-S7型，尺寸為45x39與50x45(圖10-20)。耐腐蝕機械密封在腐蝕性介質(zhì)中，機械密封的零件受到介質(zhì)的強烈侵蝕，摩擦面同時受到.腐蝕和磨損，這種現(xiàn)象稱為“磨蝕“，其腐蝕速度約為無摩擦時的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)計耐腐蝕機械密封時，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?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.外裝式有普通型機械密封和波紋管型機械密封兩種，’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。太原搪玻璃釜用機械密封天門206釜用機械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原搪玻璃釜用機械密封,釜用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525362480469/9289807.png"></div><p> 對于離心泵，轉(zhuǎn)速在2950r／min和直徑小時，可忽略離心力的影響；當直徑較大時，環(huán)座產(chǎn)生的離心力較大，會抵消一部分過盈值，不容忽略。此外，環(huán)座材料的彈性模量不同，采用的過盈值也不同，對于彈性錯量小的材料（如4J42和鈦合金等），過盈值可相應(yīng)大些。我們引用計算過盈值的公式e=dm（a2一a1）（t—t0），取e=0．002dm有0．002=（a2一a1）（t—t0）可得**高使用溫度t=（a2一a1）+t0對于3Cr13、1Cr18Ni9Ti、Icr18Ni12Mo2Ti和哈氏合金B(yǎng)與C，其彈性模量相近，當它們與YG6和YGS熱裝時，高使用溫度見表2(取t。＝22℃)?？紤]離心力的影響和高溫下環(huán)座材料的應(yīng)力松弛后，各種環(huán)座材料的允許使用溫度見圖28，超出此溫度在密封腔中就應(yīng)采取措施，降低溫度。八、輔助密封圈種類動環(huán)和軸（軸套）以及靜環(huán)和壓蓋之間的密封靠輔助密封圈來實現(xiàn)。它們基本上屬于靜密封，當密封端面和軸中心線不垂直時，動環(huán)密封圈沿軸向有很小的軸向運動，其位移量取決于密封端面和軸中心的垂直度誤差、運動的次數(shù)和軸轉(zhuǎn)速等。輔助密封圈的種類很多，從材料角度分類有合成橡膠、聚四氟乙烯和柔性石墨等；從斷面形狀分類有圓形、方形、V形、楔形及包覆形密封圈。</p><p> 五、與釜用機械密封有關(guān)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(guān).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(guān)，，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(yīng)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。天門M481釜用機械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原搪玻璃釜用機械密封,釜用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525474833984/8962967.png"></div><p> 當產(chǎn)生抽空（汽蝕）時，靜環(huán)能離位，從而損壞密封。2）固定型靜環(huán)。圖21所示為幾種固定型靜環(huán)，這種靜環(huán)由于浮動性差，安裝時尤其要注意密封端面和軸心線的垂直度。其優(yōu)點是泵抽空時靜環(huán)不至于離位，較為可靠。3）粘結(jié)型靜環(huán)。上兩種靜環(huán)安裝在壓蓋中時都設(shè)有密封圈，而粘結(jié)型靜環(huán)則取消了密封圈，靜環(huán)與壓蓋之間的密封和防轉(zhuǎn)，用粘結(jié)劑實現(xiàn)。由于采用了粘結(jié)劑，使用溫度和介質(zhì)受到了粘結(jié)劑性能的限制，盡管如此，仍在很多場合得到應(yīng)用。集裝式密封的軸套的傳動普通機械密封的軸套都是事先安裝和固定在軸上后再安裝機械密封，而集裝式密封則不同，它是將密封軸套和壓蓋預先裝在軸套上，再整體向軸上安裝，于是存在一個軸套如何固定在軸上，并傳遞扭矩的問題，同時還要解決軸套和軸之間的泄漏問題。圖42a表示了一種傳動方式。螺釘安裝在零件A上，在軸套的對應(yīng)部位開有圓孔，將螺釘通過軸套的圓孔，并旋緊在軸上，即可實現(xiàn)軸套和軸的傳動。軸套和軸的密封，靠O形圈來完成。這種傳動方式比較簡單。圖42b是另一種傳動方式。它用圓螺母A壓緊軸和軸套之間的填料（四氟制成），靠填料與軸的摩擦力來傳動，同時也起到了密封圈的作用。湘潭212釜用機械密封件。太原搪玻璃釜用機械密封</p><p style="text-indent:25px">蘇州MR-D釜用機械密封件。太原搪玻璃釜用機械密封</p><p> 焊接金屬波紋管的彈率的計算由于焊接金屬波紋管機械密封不用彈簧，彈性力完全由波紋管產(chǎn)生，因此波紋管設(shè)計時要考慮其彈率。一般將波紋管的彈率設(shè)計得小些，當要求一定的彈力時，波紋管的壓縮量就要適當?shù)丶哟?。運轉(zhuǎn)相當長時間后，如果密封端面磨損，波紋管自動補償，而彈力降低不會大，始終保持密封端面有足夠的壓比。為保證足夠的彈性力，壓縮量在10mm左右，低不能低于6mm。工作時每個波的變形以小為宜，為保證一定的壓縮量，要適當增加波數(shù)，保持波距。一般波數(shù)取16～20，溫度和壓力高時波數(shù)宜取多。波紋管的彈率是幾何形狀和材料的函數(shù)，常用下式計算：k=πEt3(c)d2/2nB3d1式中k——波紋管彈率，N／mm；E——材料在工作溫度下的彈性模量，N/mm2；t——波片厚度，mmn——波紋管波數(shù)；d1、d2——分別為波紋管的內(nèi)外徑，mm；B——波紋管的片寬，mm。B=（d2-d1）／2公式中沒有考慮波片的斷面形狀等因素，因此有一定的誤差。實際工作中可在彈簧測力計上測量其彈率。普通彈簧的彈率計算在一般“機械零件”書上能找到，故在此不作介紹。非對稱型波紋管焊接金屬波紋管機械密封以其結(jié)構(gòu)簡單、伸縮性好和耐高溫等優(yōu)點，得到了日益廣的應(yīng)用，尤其是高溫泵的密封中。太原搪玻璃釜用機械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2830413.html</p></div></div></div></div></div><div id="kqq0gm0" class="page-right twoColRt"><div id="ksymsou" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="40u8qwk" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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