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tcPro"><section class="home-main container clearfix"><div id="fis8dye" class="twoCol"><div id="c3wu288" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_xiangsu/">橡塑</a>?<a href="http://www.cdcfah.com/cp/third-xiangsu_gyyxjzp/">工業(yè)用橡膠制品</a>?北京非標(biāo)O型圈廠商誠信服務(wù) 蘇州思飛硅橡膠制品供應(yīng)</p><div id="2nikvlq" class="leftbox clearfix"><h1>北京非標(biāo)O型圈廠商誠信服務(wù) 蘇州思飛硅橡膠制品供應(yīng)</h1><div id="qbm8jfg" class="proBig"><div id="jw3csci" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358507568359/3126296.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="iqomggb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358507568359/3126296.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kbafq3c" 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>北京非標(biāo)O型圈廠商,O型圈</p><p><span>***更新：</span>2020-08-17 15:21:28</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="8qlbgm8" 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="ez8bhny" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8ss3yoy" class="box"><p><p> 扭曲損傷引起扭曲損傷的原因很多，其中主要的是由于活塞、活塞桿和缸筒的間隙不均勻、偏心過大、O型圈斷面直徑不均勻等造成，由于造成O型圈在一周多受的摩擦力不均勻，O型圈的某些部分摩擦過大，發(fā)生扭曲。通常，斷面尺寸較小的O型圈，容易產(chǎn)生摩擦不均勻。造成扭曲（運(yùn)動(dòng)用O型圈比固定用O型圈的斷面直徑大就是這個(gè)道理。）另外，由于密封溝槽存在著同軸度偏差，密封高度不相等以及O型圈截面直徑不均勻等現(xiàn)象，可能使得O型圈的一部分壓縮過大，另一部分過小或不受壓縮。當(dāng)溝槽存在偏心即同軸偏差大于O型圈的壓縮量時(shí)，密封會(huì)完全失效。密封溝槽同軸度偏差大的另一個(gè)害處是使O形密封圈沿圓周壓縮不均。此外還有由于O型圈截面直徑、材質(zhì)硬度、潤滑油膜厚度等的不均以及密封軸表面粗糙度等因素的影響，導(dǎo)致O型圈的一部分沿工件表面滑動(dòng)，另一部分則發(fā)生滾動(dòng)，從而造成O型圈的扭曲。運(yùn)動(dòng)使圈很容易因扭曲而損壞，這是密封裝置發(fā)生損壞和泄漏的重要原因。因此提高密封溝槽的加工精密度以及減小偏心是保證O型圈具有可靠的密封性和壽命的重要因素。安裝密封圈不應(yīng)是它處于扭曲狀態(tài)，北京非標(biāo)O型圈廠商。假如在安裝時(shí)就被扭曲，北京非標(biāo)O型圈廠商，則扭曲損傷就會(huì)很快發(fā)生。在工作中，北京非標(biāo)O型圈廠商，扭曲現(xiàn)象會(huì)將O型圈切斷，產(chǎn)生大量漏油。全網(wǎng)直銷原裝進(jìn)口NOKG系列O型圈,進(jìn)口氟橡膠圈。北京非標(biāo)O型圈廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京非標(biāo)O型圈廠商,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358507568359/3126296.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)長時(shí)間的使用，會(huì)產(chǎn)生長久變形而逐漸喪失，隨之發(fā)生泄漏。長久變形和彈力消失是O型圈失去密封性能的主要原因，以下是造成長久變形的主要原因。1）壓縮率和拉伸量與長久變形的關(guān)系2）溫度與O型圈馳張過程的關(guān)系3）介質(zhì)工作壓力與長久變形。北京非標(biāo)O型圈廠商耐高溫O型圈-蘇州思飛硅橡膠制品有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京非標(biāo)O型圈廠商,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358443876953/6003762.png"></div><p> O型圈用于旋轉(zhuǎn)運(yùn)動(dòng)存在的主要問題是焦耳熱效應(yīng)。焦耳熱效應(yīng)使高速的旋轉(zhuǎn)軸與O型圈的接觸處產(chǎn)生磨擦熱，生成的熱量使這些接觸部位的溫度不斷上升，橡膠材料受熱嚴(yán)重變形，壓縮量與伸長量發(fā)生變化的現(xiàn)象。發(fā)熱還加速密封材料老化，降低了O型圈的使用壽命；破壞密封油膜，由此引起斷油現(xiàn)象，加速密封的磨損?；谏鲜銮闆r，近年來國內(nèi)外旋轉(zhuǎn)運(yùn)動(dòng)用O型圈進(jìn)行了深入的研究。為了避免出現(xiàn)焦耳熱效應(yīng)，關(guān)鍵在于根據(jù)橡膠的性能來正確地選擇設(shè)計(jì)O型圈的結(jié)構(gòu)參數(shù)，主要是O型圈的拉伸量和壓縮率。根據(jù)實(shí)驗(yàn)，將旋轉(zhuǎn)運(yùn)動(dòng)用O型圈設(shè)計(jì)成內(nèi)徑與旋轉(zhuǎn)軸直徑相等或稍大些，一般大3%~5%，在安裝O型圈時(shí)，從內(nèi)徑向里壓縮，并將斷面的壓縮量也設(shè)計(jì)得小一些，一般約為5%。并且，盡量采用受熱量影響小的密封材料，充分考慮O型圈安裝處的散熱問題。這樣就使O型圈的工作情況大為改善，可應(yīng)用于轉(zhuǎn)速達(dá)4m/s的旋轉(zhuǎn)軸的密封。近年來又出現(xiàn)了耐熱氟橡膠和耐磨聚氨酯橡膠，并且對(duì)橡膠元件工作的焦耳熱效應(yīng)有了更深入的了解，并針對(duì)此問題研究解決方案，設(shè)計(jì)出了新的O型圈密封結(jié)構(gòu)，使O型圈能夠更好的應(yīng)用與高速、高壓的旋轉(zhuǎn)運(yùn)動(dòng)。O形密封圈由于其具有體積小。 </p><p> 氯丁膠CR(Neoprene、Polychloroprene)由氯丁烯單體聚合而成。硫化后的橡膠彈性耐磨性好，不怕陽光的直接照射，有特別好的耐大氣老化性能，不怕激烈的扭曲，不怕二氯二氟甲烷和氨等制冷劑，耐稀酸、耐硅酯系潤滑油，但不耐磷酸酯系液壓油。在低溫時(shí)易結(jié)晶、硬化，貯存穩(wěn)定性差，在苯胺點(diǎn)低的礦物油中膨脹量大。一般使用溫度范圍為-50~150℃優(yōu)點(diǎn)：·彈性良好及具良好的壓縮變形?！づ浞絻?nèi)不含硫磺因此非常容易來制作·具抗動(dòng)物及植物油的特性·不會(huì)因中性化學(xué)物，酯肪、油脂、多種油品，溶劑而影響物性·具防燃特性缺點(diǎn)：·不建議使用強(qiáng)酸、硝基烴、酯類、氯仿及酮類的化學(xué)物之中?！つ蚏12制冷劑的密封件?！ぜ译娪闷飞系南鹉z零件或密封件?！みm合用來制作各種直接接觸大氣、陽光、臭氧的零件?！みm用于各種耐燃、耐化學(xué)腐蝕的橡膠制品。 o型圈_專業(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="北京非標(biāo)O型圈廠商,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528322392578/8857920.png"></div><p> 壓縮率壓縮率W通常用下式表示:W=(d0-h)/d0d0:O型圈在自由狀態(tài)下的截面直徑(mm);h:O型圈槽底與被密封表面的距離(溝槽深度)，即O型圈壓縮后的截面高度(mm)在選取O形圈的壓縮率時(shí),應(yīng)從如下3方面考慮:1.要有足夠的密封接觸面積;2.摩擦力盡量小;3.盡量避免長久變形。從以上這些因素不難發(fā)現(xiàn),他們相互之間存在矛盾。壓縮率大就可獲得大的接觸壓力，但是過大的壓縮率無疑就會(huì)增大滑動(dòng)摩擦力和長久形。而壓縮率過小則可能由于密封溝槽的同軸度誤差和O形圈誤差不符合要求，消失部分壓縮量而引起泄漏。因此，在選擇O形圈的壓縮率時(shí)，要權(quán)衡各方面的因素。一般靜密封壓縮率大于動(dòng)密封，但其極值應(yīng)小于25%，否則壓縮應(yīng)力明顯松弛，將產(chǎn)生過大的長久變形，在高溫工況中尤為嚴(yán)重。【透明進(jìn)口硅膠O型圈】價(jià)格,廠家。深圳丁腈橡膠O型圈公司</p><p style="text-indent:25px">美國杜邦氟膠O型圈、進(jìn)口O型圈美國杜邦氟膠O型圈。北京非標(biāo)O型圈廠商</p><p> 材質(zhì)分類天然橡膠NR(NaturalRubber)由橡膠樹采集膠乳制成，是異戊二烯的聚合物。具有很好的耐磨性、很高的彈性、扯斷強(qiáng)度及伸長率。在空氣中易老化，遇熱變黏，在礦物油或汽油中易膨脹和溶解，耐堿但不耐強(qiáng)酸。·是制作膠帶、膠管、膠鞋的原料，并適用于制作減震零件、在汽車剎車油、乙醇等帶氫氧根的液體中使用的制品。丁苯膠SBR(StyreneButadieneCopolyme)丁二烯與苯乙烯之共聚合物，與天然膠比較，質(zhì)量均勻，異物少，但機(jī)械強(qiáng)度則較弱，可與天然膠摻合使用優(yōu)點(diǎn)：·低成本的非抗油性材質(zhì)·良好的抗水性，硬度70以下具良好彈力·高硬度時(shí)具較差的壓縮歪·可使用大部份中性的化學(xué)物質(zhì)及干性、滋性的有機(jī)酮缺點(diǎn)：·不建議使用強(qiáng)酸、臭氧、油類、油酯和脂肪及大部份的碳?xì)浠衔镏小?北京非標(biāo)O型圈廠商</p><p 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