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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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id="g3hy4ji" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528407451172/9437680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="z2miwz8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528407451172/9437680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="locnbcq" 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>鹽城食品級(jí)O型圈排名,O型圈</p><p><span>***更新：</span>2020-11-30 00:21:27</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="fokwsyj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州思飛硅橡膠制品有限公司</a></p><p><span>聯(lián)系人：</span>關(guān)偉蘭</p><p><span>郵箱: </span>szsf1688@126.com</p><p><span>電話: </span>18662569900</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://sfgxjbm.shop.88360.com</p><p><span>手機(jī): </span>0512-65853376</p><p><span>地址: </span>蘇州吳中經(jīng)濟(jì)開(kāi)發(fā)區(qū)旺山工業(yè)園龍翔路西2號(hào)</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="wkl3e2j" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xq88o5h" class="box"><p><p> 不同膠種的橡膠O型圈生產(chǎn)工藝不同橡膠O型圈適用于各種動(dòng)、靜態(tài)密封，在油、水、氣、化學(xué)介質(zhì)或其它混合介質(zhì)中長(zhǎng)期使用需要選擇合適的橡膠原料；理論上O型圈生產(chǎn)工藝基本一致，但由于不同種類(lèi)的橡膠工藝性能不同，因此天然橡膠O型圈、各類(lèi)合成橡膠O型圈與再生橡膠O型圈某些生產(chǎn)工藝存在一定差異。橡膠O型圈—塑煉目前橡膠O型圈生產(chǎn)中常用的橡膠品種有天然橡膠、丁腈橡膠、丁基橡膠、三元乙丙橡膠、硅氟橡膠等等，其中天然橡膠、丁苯橡膠與硬質(zhì)丁腈橡膠用于橡膠O型圈生產(chǎn)過(guò)程中需要進(jìn)行塑煉，其他種類(lèi)的合成橡膠不需要進(jìn)行塑煉；再生膠作為原膠的低價(jià)替代原料，以廢橡膠、廢舊橡膠制品為原料加工而成，可塑性、流動(dòng)性優(yōu)異，基本無(wú)需塑煉。橡膠O型圈所用膠料混煉可以選擇開(kāi)煉或密煉，再生橡膠的塑煉，鹽城食品級(jí)O型圈排名，鹽城食品級(jí)O型圈排名、混煉通常在密煉機(jī)中進(jìn)行。橡膠混煉膠是O型圈HYL16Y6Y2L-SJ的半成品，其質(zhì)量直接影響O型圈產(chǎn)品質(zhì)量，因此橡膠制品廠家需要根據(jù)橡膠的加工特點(diǎn)合理調(diào)節(jié)混煉工藝條件，包括混煉時(shí)間，鹽城食品級(jí)O型圈排名、混煉溫度等等。 o型密封圈型號(hào)-nbr橡膠耐油o型圈-蘇州思飛。鹽城食品級(jí)O型圈排名</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城食品級(jí)O型圈排名,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528407451172/9437680.png"></div><p> O型圈的設(shè)計(jì)與使用O型圈的設(shè)計(jì)、使用不當(dāng)會(huì)加速它的損壞，喪失密封性能。實(shí)驗(yàn)表明，如密封裝置各部分設(shè)計(jì)合理，單純地提高壓力，并不會(huì)造成O型圈的破壞。在高壓、高溫的工作條件下，O型圈破壞的主要原因是O型圈材料的長(zhǎng)久變形和O型圈被擠入密封間隙而引起的間隙咬傷，O型圈在運(yùn)動(dòng)時(shí)出現(xiàn)扭曲現(xiàn)象。長(zhǎng)久變形由于O型圈密封圈用的合成橡膠材料是屬于粘彈性材料，所以初期設(shè)定的壓緊量和回彈堵塞能力經(jīng)長(zhǎng)時(shí)間的使用，會(huì)產(chǎn)生長(zhǎng)久變形而逐漸喪失，隨之發(fā)生泄漏。長(zhǎng)久變形和彈力消失是O型圈失去密封性能的主要原因，以下是造成長(zhǎng)久變形的主要原因。1）壓縮率和拉伸量與長(zhǎng)久變形的關(guān)系2）溫度與O型圈馳張過(guò)程的關(guān)系3）介質(zhì)工作壓力與長(zhǎng)久變形。南京電子產(chǎn)品O型圈訂做德國(guó)進(jìn)口O型圈進(jìn)口耐高溫o型圈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城食品級(jí)O型圈排名,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358507568359/3126296.png"></div><p> 摩擦力與O型圈的應(yīng)用在動(dòng)密封裝置中，摩擦與磨損是O型圈損壞的重要影響因素。磨損程度主要取決于摩擦力的大小。當(dāng)液體壓力微小時(shí)，O型圈摩擦力的大小取決于它的預(yù)壓縮量。當(dāng)工作液體承受壓力時(shí)，摩擦力隨之工作壓力的增加而增大。在工作壓力小于20MPa的情況下，近似地呈線形關(guān)系。壓力大于20MPa時(shí)，隨著壓力的增加，O型圈與金屬表面接觸面積的增加也逐漸緩慢，摩擦力的增加也相應(yīng)緩慢。在正常情況下，O型圈的使用壽命隨著液體壓力的升高將會(huì)近似的呈平方關(guān)系而減小。摩擦力的增加，使得旋轉(zhuǎn)或往復(fù)運(yùn)動(dòng)的軸與O形密封圈之間產(chǎn)生大量的摩擦熱。由于多數(shù)O型圈都是用橡膠制成的，導(dǎo)熱性極差。因此，摩擦熱就會(huì)引起橡膠的老化，導(dǎo)致O型圈實(shí)效，破壞其密封性能。摩擦還會(huì)引起O型圈表面損傷，使壓縮量減小。嚴(yán)重的摩擦?xí)芸煲餙型圈的表面損壞，失去密封性。作氣動(dòng)往復(fù)運(yùn)動(dòng)用密封時(shí)，摩擦熱還會(huì)引起粘著，造成摩擦力進(jìn)一步增加。運(yùn)動(dòng)用密封在低速運(yùn)動(dòng)時(shí)，摩擦阻力還是引起爬行的一個(gè)因素，影響元件和系統(tǒng)的工作性能。所以對(duì)運(yùn)動(dòng)密封來(lái)說(shuō)，摩擦性是重要性能之一。摩擦系數(shù)是摩擦特性的一個(gè)評(píng)價(jià)指標(biāo)，合成橡膠摩擦系數(shù)較大，由于密封在運(yùn)動(dòng)狀態(tài)時(shí)。 </p><p> O型圈的概述與密封原理O型橡膠圈密封圈簡(jiǎn)稱(chēng)O型圈，是一種截面形狀為圓形的橡膠圈。O型密封圈是液壓、氣動(dòng)系統(tǒng)中使用較為廣的一種密封件。O型圈有良好的密封性能，既可用于靜密封，也可用于動(dòng)密封中;不僅可單獨(dú)使用，而且是許多組合式密封裝置中的基本組成部分。它的使用范圍很寬，如果材料選擇得當(dāng)，可以滿足各種介質(zhì)和各種運(yùn)動(dòng)條件的要求。O型密封圈是一種擠壓型密封，擠壓型密封的基本工作原理是依靠密封件發(fā)生彈性變形，在密封接觸面上造成接觸壓力，接觸壓力大于被密封介質(zhì)的內(nèi)壓，則不發(fā)生泄壓縮率現(xiàn)拉伸量O型密封圈是典型的擠壓型密封。O型圈截面直徑的壓縮率和拉伸量是密封設(shè)計(jì)的主要內(nèi)容，對(duì)密封性能和使用壽命有重要意義。O型密封圈有良好的密封效果很大程度上取決于O型圈尺寸與溝槽尺寸的正確匹配，形成合理的密封圈壓縮量與拉伸量。漏，反之則發(fā)生泄漏。 o型圈_專(zhuān)業(yè)生產(chǎn)廠家_型號(hào)齊全。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城食品級(jí)O型圈排名,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528049404297/8635313.png"></div><p> 硬度選擇O形圈硬度的選擇是比較重要的。如某電站水泵水輪機(jī)硬度為70（Shore）密封圈，常常剝落，甚至橫向切斷，后采用85～90（Shore）的密封圈，效果理想。硬度低，安裝方便，但容易出現(xiàn)剝落、安裝損傷、擠出甚至壓力。硬度過(guò)高，安裝不方便。通常O形圈硬度40～90IRHD，但在使用中一般70IRHD是比較合適的，對(duì)于硅橡膠是例外，一般使用60IRHD。.O形圈的修整未硫化O形圈膠料在高溫、壓力下為粘稠流體，而到了模壓硫化階段，膠料迅速充滿模腔，其多余的部分(為了防止缺膠，填充在模腔中的膠料，肯定保持一定的過(guò)量)溢出硫化，便形成了溢膠(也稱(chēng)廢邊、飛邊)。溢邊一旦形成，為使外觀整齊、美觀，必須除去，這一工序習(xí)稱(chēng)修邊。對(duì)修邊的要求是尺寸精確、外觀整齊。在實(shí)際生產(chǎn)中。產(chǎn)品的修邊往往費(fèi)時(shí)、耗工，對(duì)于要求嚴(yán)的產(chǎn)品，在修邊時(shí)稍有不慎即可能出廢次，必須謹(jǐn)慎對(duì)待。一般來(lái)說(shuō)，產(chǎn)品的尺寸規(guī)格越小、構(gòu)形越復(fù)雜，修邊的難度越高，廢品也越多。【阻燃o(jì)型圈】采購(gòu)批發(fā)市場(chǎng) 質(zhì)量阻燃o(jì)型圈價(jià)格/品牌/廠商。鹽城食品級(jí)O型圈排名</p><p style="text-indent:25px">阻燃o(jì)型圈-阻燃o(jì)型圈批發(fā)廠家、廠家比價(jià)、質(zhì)量供應(yīng)商。鹽城食品級(jí)O型圈排名</p><p> O型密封圈壓縮率W的選擇應(yīng)考慮使用條件，靜密封或動(dòng)密封;靜密封又可分為徑向密封與軸向密封;徑向密封(或稱(chēng)圓柱靜密封)的泄漏間隙是徑向間隙，軸向密封(或稱(chēng)平面靜密封)的泄漏間隙是軸向間隙。軸向密封根據(jù)壓力介質(zhì)作用于O形圈的內(nèi)徑還是外徑又分受內(nèi)壓和受外壓兩種情況，內(nèi)壓增加的拉伸，外壓降低O形圈的初始拉伸。(歡迎關(guān)注:泵友圈)上述不同形式的靜密封，密封介質(zhì)對(duì)O形圈的作用方向是不同的，所以預(yù)壓力設(shè)計(jì)也不同。對(duì)于動(dòng)密封則要區(qū)分是往復(fù)運(yùn)動(dòng)密封還是旋轉(zhuǎn)運(yùn)動(dòng)密封。1.靜密封:圓柱靜密封裝置和往復(fù)運(yùn)動(dòng)式密封裝置一樣，一般取W=10%~15%;平面靜密封裝置取W=15%~30%。2.對(duì)于動(dòng)密封而言，可以分為三種情況;往復(fù)運(yùn)動(dòng)一般取W=10%~15%。旋轉(zhuǎn)運(yùn)動(dòng)密封在選取壓縮率時(shí)必須要考慮焦耳熱效應(yīng)，一般來(lái)說(shuō)，旋轉(zhuǎn)運(yùn)動(dòng)用O形圈的內(nèi)徑要比軸徑大3%-5%，外徑的壓縮率W=3%-8%。低摩擦運(yùn)動(dòng)用O型圈，為了減少摩擦阻力，一般均選取較小的壓縮率，即W=5%-8%，此外，還要考慮到介質(zhì)和溫度引起的橡膠材料膨脹。通常在給定的壓縮變形之外，允許的較大膨脹率為15%，超過(guò)這一范圍說(shuō)明材料選用不合適，應(yīng)改用其他材料的O形圈，或?qū)o定的壓縮變形率予以修正。鹽城食品級(jí)O型圈排名</p><p style="text-indent:25px">蘇州思飛硅橡膠制品有限公司致力于橡塑，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。蘇州思飛作為加工、銷(xiāo)售：新能源硅膠制品、模壓硅膠制品、電子、汽車(chē)、生活美容硅膠制品、密封圈、腳墊、按鍵等硅膠制品、橡膠密封制品、橡膠配件制品；銷(xiāo)售：模具、海綿、珍珠棉、絕緣材料；自營(yíng)和代理各類(lèi)商品及技術(shù)的進(jìn)出口業(yè)務(wù).的企業(yè)之一，為客戶提供良好的密封圈，硅膠按鍵，腳墊，硅橡膠訂制品。蘇州思飛繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。蘇州思飛始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使蘇州思飛在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2196292.html</p></div></div></div></div></div><div id="ox8x2bx" class="page-right twoColRt"><div id="fofbsof" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oxou2t3" 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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