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class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358470078125/6223922.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kl4pmlc" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358470078125/6223922.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3koaxws" 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>杭州液壓O型圈訂做,O型圈</p><p><span>***更新：</span>2020-09-09 13:05:35</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="pzovcov" 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</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="eyiprol" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cr4ly2d" class="box"><p><p> 氟橡膠FPM(FluoroCarbonRubber)分子內(nèi)含氟之橡膠，依氟含量(即單體構(gòu)造)而有各種類型。目前廣用的六氟化系氟橡膠早由杜邦公司以”Viton”商品名上市。耐高溫性優(yōu)于硅橡膠，有較好的耐化學(xué)性、耐大部分油及溶劑(酮、酯類除外)、耐候性及耐臭氧性；耐寒性則較不良，杭州液壓O型圈訂做，一般使用溫度范圍為-20~250℃。特殊配方可耐低溫至-40℃。優(yōu)點(diǎn)：·可抗熱至250℃·對于大部份油品及溶劑都具有抵抗的能力，尤其是所有的酸類，杭州液壓O型圈訂做、脂族烴、芳香烴及動植物油缺點(diǎn)：·不建議使用于酮類，杭州液壓O型圈訂做，低分子量的酯類及含硝的混合物?！て嚒C(jī)車、柴油發(fā)動機(jī)及燃料系統(tǒng)?！せS的密封件。全氟橡膠FFPM(Perfluoroelastomer)優(yōu)點(diǎn)：·較好耐熱特性·優(yōu)異的抗化學(xué)特性·低Outgassing特性·優(yōu)異之抗Plasma特性缺點(diǎn)：·耐低溫特性較差·原料價格較高·生產(chǎn)難度較高·全氟系列產(chǎn)品運(yùn)用于半導(dǎo)體產(chǎn)業(yè)及信息相關(guān)產(chǎn)業(yè)所運(yùn)用,運(yùn)用范圍包含薄膜制程中之PVC,CVD及蝕刻制程及各種高真空密封制程。 O型圈,星型圈/X型圈橡膠球。杭州液壓O型圈訂做</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州液壓O型圈訂做,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358470078125/6223922.png"></div><p> 接頭橡膠O型圈是靜密封，不考慮橡膠O型圈裝到O型圈環(huán)槽變形和其他裝配影響，簡單計算接頭管徑(d’)單邊過盈量為10~20絲即可，即。當(dāng)然考慮到零件尺寸公差(O型圈截面直徑，橡膠O型圈內(nèi)徑，密封面內(nèi)徑尺寸，橡膠O型圈環(huán)槽尺寸和槽岸尺寸)，同軸度及裝備位置的偏心，可以進(jìn)一步計算裝配發(fā)生單邊靠攏時候的極限情況，確保這個時候的松邊過盈不為負(fù)值。以便進(jìn)一步確定密封面、O型圈環(huán)槽、槽岸的尺寸及公差。再計算D’值(O型密封圈溝槽外徑)D’=d22H其中：d2=d1/要保證合理的密封性能，動密封和靜密封都要有合適的表面粗糙度。一般靜密封μm~μm，動密封μm~μm。但不是粗糙度越高越好，如果安裝面的粗糙度太高，平直度差，有的會出現(xiàn)凸棱。一方面O型環(huán)被壓縮后，有的面因密封不嚴(yán)而漏油。另一方面O型環(huán)在溝槽中會隨著壓力高的方向向壓力低的方向滑動，造成O型環(huán)損傷，引起泄漏。橡膠O型圈的拉伸率過大，會引起應(yīng)力松弛，造成O型圈的內(nèi)徑增大。造成與軸面形成接觸間隙，安裝過程中會因為振動而使其脫落。同時，橡膠O型圈由于擠壓力度不均勻，影響O型圈的使用壽命。橡膠O型圈安裝部位的設(shè)計要求(1)O型圈安裝槽部位必須保證足夠的表面粗糙度，外表光滑，無損傷。。山西加工O型圈定制耐油o型圈_耐油o型圈價格_質(zhì)量耐油o型圈批發(fā)/采購/產(chǎn)地貨源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州液壓O型圈訂做,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328528129531250/607072.png"></div><p> O型圈用于旋轉(zhuǎn)運(yùn)動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，將旋轉(zhuǎn)運(yùn)動用O型圈設(shè)計成內(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，從內(nèi)徑向里壓縮，并將斷面的壓縮量也設(shè)計得小一些，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，并且對橡膠元件工作的焦耳熱效應(yīng)有了更深入的了解，并針對此問題研究解決方案，設(shè)計出了新的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。O形密封圈由于其具有體積小。 </p><p> 摩擦力與O型圈的應(yīng)用在動密封裝置中，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，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，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，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。作氣動往復(fù)運(yùn)動用密封時，摩擦熱還會引起粘著，造成摩擦力進(jìn)一步增加。運(yùn)動用密封在低速運(yùn)動時，摩擦阻力還是引起爬行的一個因素，影響元件和系統(tǒng)的工作性能。所以對運(yùn)動密封來說，摩擦性是重要性能之一。摩擦系數(shù)是摩擦特性的一個評價指標(biāo)，合成橡膠摩擦系數(shù)較大，由于密封在運(yùn)動狀態(tài)時。阻燃硅膠O型圈制造廠家品牌。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州液壓O型圈訂做,O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/sfgxjbm/637328358658076172/1435039.png"></div><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)動用O型圈比固定用O型圈的斷面直徑大就是這個道理。）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，密封會完全失效。密封溝槽同軸度偏差大的另一個害處是使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，另一部分則發(fā)生滾動，從而造成O型圈的扭曲。運(yùn)動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)。假如在安裝時就被扭曲，則扭曲損傷就會很快發(fā)生。在工作中，扭曲現(xiàn)象會將O型圈切斷，產(chǎn)生大量漏油。食品級o型圈-專業(yè)定制各種橡膠密封圈。山西加工O型圈定制</p><p style="text-indent:25px">O型圈|O型密封圈|氟膠O型圈-專業(yè)O型圈供應(yīng)商,只做O型圈更專業(yè)。杭州液壓O型圈訂做</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：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滑脂或潤滑液(要保證彈性體的介質(zhì)相容性，推薦用所密封的液體來潤滑);4.不得使用含固體添加劑的潤滑脂，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，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，應(yīng)對稱旋緊螺絲。杭州液壓O型圈訂做</p><p style="text-indent:25px">蘇州思飛硅橡膠制品有限公司是一家加工、銷售：新能源硅膠制品、模壓硅膠制品、電子、汽車、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；銷售：模具、海綿、珍珠棉、絕緣材料；自營和代理各類商品及技術(shù)的進(jìn)出口業(yè)務(wù).的公司，是一家集研發(fā)、設(shè)計、生產(chǎn)和銷售為一體的專業(yè)化公司。蘇州思飛擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊，以高度的專注和執(zhí)著為客戶提供密封圈，硅膠按鍵，腳墊，硅橡膠訂制品。蘇州思飛致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。蘇州思飛始終關(guān)注橡塑行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1218672.html</p></div></div></div></div></div><div id="fjrb2xz" class="page-right twoColRt"><div 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