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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>上海氟膠O型圈廠家現(xiàn)貨,O型圈</p><p><span>***更新：</span>2020-12-19 04:10:26</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="h4uwlcj" 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="8rynt78" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="taczwo8" class="box"><p><p> O型圈的概述與密封原理O型橡膠圈密封圈簡(jiǎn)稱O型圈，是一種截面形狀為圓形的橡膠圈，上海氟膠O型圈廠家現(xiàn)貨。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，上海氟膠O型圈廠家現(xiàn)貨，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，上海氟膠O型圈廠家現(xiàn)貨，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。進(jìn)口三元乙丙O型圈-蘇州思飛。上海氟膠O型圈廠家現(xiàn)貨</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海氟膠O型圈廠家現(xiàn)貨,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528322392578/8857920.png"></div><p> <br /> </p> <p> O型圈材料的壓縮長(zhǎng)久變形率與溫度有關(guān)。當(dāng)變形率在40%或更大時(shí)，即會(huì)出現(xiàn)泄漏，所以幾種膠料的耐熱性界限為：丁腈橡膠70℃，三元乙丙橡膠100℃，氟橡膠140℃。因此各國(guó)對(duì)O型圈的長(zhǎng)久變形作了規(guī)定。中國(guó)標(biāo)準(zhǔn)橡膠材料的O型圈在不同溫度下的尺寸變化見表。同一材料的O型圈，在同一溫度下，截面直徑大的O型圈壓縮長(zhǎng)久變形率較低。在油中的情況就不同了。由于此時(shí)O型圈不與氧氣接觸，般發(fā)生在動(dòng)密封狀態(tài)。O型圈如果裝配的妥善，并且使用條件適當(dāng)，一般不大容易在往復(fù)運(yùn)動(dòng)狀態(tài)下產(chǎn)生滾動(dòng)或扭曲，因?yàn)镺型圈與溝槽的接觸面積大于在滑動(dòng)表面上的摩擦接觸面積，而且O型圈本身的抗拒能力原來就能阻止扭曲。摩擦力的分布也趨向保持O型圈在其溝槽中靜止不動(dòng)，因?yàn)殪o摩擦大于滑動(dòng)摩擦，而且溝槽表面的粗糙度一般不如滑動(dòng)表面的粗糙度。 </p> <p> <br /> </p> <p> <br /> 上海氟膠O型圈廠家現(xiàn)貨質(zhì)量o型圈!!新能密封o型圈!!按圖生產(chǎn) 廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海氟膠O型圈廠家現(xiàn)貨,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528511611328/573543.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(zhǎng)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(guó)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> 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(zhǎng)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(zhǎng)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(zhǎng)久變形，在高溫工況中尤為嚴(yán)重。歐盟RoHS2.0O型圈耐高溫O型圈氟膠O型圈規(guī)格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海氟膠O型圈廠家現(xiàn)貨,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358507568359/3126296.png"></div><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(zhǎng)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?！な侵谱髂z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?O型圈廠家-氟膠O型圈-硅膠O型圈。上海氟膠O型圈廠家現(xiàn)貨</p><p style="text-indent:25px">O型圈_蘇州思飛硅橡膠制品有限公司。上海氟膠O型圈廠家現(xiàn)貨</p><p> 安裝要求一、安裝O形圈(O型橡膠密封圈)的要求在安裝O形圈(O型橡膠密封圈)之前，檢查以下各項(xiàng)：1.引入角是否按圖紙加工銳邊是否倒角或倒圓;2.內(nèi)徑是否去除毛刺表面有無污染;3.密封件和零件是否已涂抹潤(rùn)滑脂或潤(rùn)滑液(要保證彈性體的介質(zhì)相容性，推薦用所密封的液體來潤(rùn)滑);4.不得使用含固體添加劑的潤(rùn)滑脂，如二硫化鉬、硫化鋅。二、手工安裝O形圈(O型橡膠密封圈)：1.使用無銳邊的工具;2.保證O形圈(O型橡膠密封圈)不扭曲，不得過量拉伸O形圈(O型橡膠密封圈);3.盡量使用輔助工具安裝O形圈(O型橡膠密封圈)，并保證正確定位;4.對(duì)于用密封條粘接成的O形圈(O型橡膠密封圈)，不得在連接處拉伸。三、安裝螺絲、花鍵等1.當(dāng)O形圈(O型橡膠密封圈)拉伸后，要通過螺絲、花鍵、鍵槽等時(shí)，必須使用安裝心軸。該心軸可以用較軟、光滑的金屬或塑料制成，不得有毛刺或銳邊。2.安裝壓緊螺絲時(shí)，應(yīng)對(duì)稱旋緊螺絲。上海氟膠O型圈廠家現(xiàn)貨</p><p style="text-indent:25px">蘇州思飛硅橡膠制品有限公司主要經(jīng)營(yíng)范圍是橡塑，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)分為密封圈，硅膠按鍵，腳墊，硅橡膠訂制品等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。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，植根于橡塑行業(yè)的發(fā)展。蘇州思飛立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2465451.html</p></div></div></div></div></div><div id="leldkm7" 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