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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>陜西阻燃橡膠O型圈定制廠家,橡膠O型圈</p><p><span>***更新：</span>2021-01-22 05:15:21</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="drbzdjn" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫萬和精密軸承有限公司</a></p><p><span>聯(lián)系人：</span>夏明洋</p><p><span>郵箱: </span>wuxiwanhexiangjiao@163.com</p><p><span>電話: </span>14751531121</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span>http://www.whxs1688.com</p><p><span>手機: </span>0510-83300919</p><p><span>地址: </span>無錫惠山經(jīng)濟開發(fā)區(qū)玉祁配套區(qū)蓉塘路28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="l7d7b57" class="page-proshow02"><p class="title">詳細說明</p><div id="bvtrhvj" class="box"><p><p style="text-indent:25px">對于動密封而言，可以分為三種情況；往復(fù)運動一般取W=10%～15%。旋轉(zhuǎn)運動密封在選取壓縮率時必須要考慮焦耳熱效應(yīng)，一般來說，旋轉(zhuǎn)運動用O形圈的內(nèi)徑要比軸徑大3%-5%，外徑的壓縮率W=3%-8%。低摩擦運動用O型圈，陜西阻燃橡膠O型圈定制廠家，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%，超過這一范圍說明材料選用不合適，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。橡膠O型圈在裝入密封溝槽后，一般都有一定的拉伸量。與壓縮率一樣，拉伸量的大小對O型圈的密封性能和和使用壽命也有很大的影響，陜西阻燃橡膠O型圈定制廠家。拉伸量大不但會導(dǎo)致O型圈安裝困難，陜西阻燃橡膠O型圈定制廠家，同時也會因截面直徑d0發(fā)生變化而使壓縮率降低，以致引起泄漏。一些工程機械由于機器密封不合格，滿地大小便的作業(yè)常常發(fā)作。陜西阻燃橡膠O型圈定制廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西阻燃橡膠O型圈定制廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438817127781915/2638890.png"></div><p style="text-indent:25px">橡膠O形圈緊縮量的斷定①靜密封：a、對圓柱面密封取10-15%;b、對平面靜密封取20-30%。②往復(fù)運動密封：取10-15%;③旋轉(zhuǎn)變密封：O形圈內(nèi)徑比軸徑大3-5%(焦耳效應(yīng))，外徑緊縮量取3-8%。橡膠O形圈觸摸面的光潔度：關(guān)于靜密封通常不低于3.22-1.6級，關(guān)于動密封環(huán)槽觸摸面不低于1.6-0.8級，對于壓力高時應(yīng)取較高光潔度。橡膠O形圈的擠出表象：當(dāng)壓力較高空隙較大時，O形圈能夠被流體壓力擠入密封空隙，設(shè)計時應(yīng)注意壓力、空隙、O形圈硬度、O形圈斷面直徑這幾個要素的匹配，必要時在兩邊可增加聚四氟乙烯擋圈。橡膠O形圈的裝置：①消除O形圈裝置時進收支通道上零件遍地的毛刺;②選用扶引東西;③避免O形圈裝于裝置槽后發(fā)生改變變形。陜西阻燃橡膠O型圈定制廠家橡膠O型圈產(chǎn)品的縮水率隨著硫化溫度的升高而增大，溫度每升高10度，縮水率增加0.1%—0.2%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西阻燃橡膠O型圈定制廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438818163309238/5947862.png"></div><p style="text-indent:25px">在被密封流體（空氣、水、油等）的壓力極低或即是零的情況下，在高的流體壓力下，橡膠O形圈被壓向與壓力方向相反一側(cè)的溝槽角落，并產(chǎn)生堵塞流體泄露通道的應(yīng)力分布，起到密封作用。即在大的流體壓力下，密封的接觸壓力即是橡膠O形圈的初始接觸應(yīng)力與流體壓力產(chǎn)生的接觸應(yīng)力之和。接觸壓力總是稍大于液體的工作壓力，所以極大地進步了密封效果。橡膠屬熱溶熱固性之彈性體，塑料則屬于熱溶冷固性。橡膠因硫化物種類主體不同，其成型固化的溫度范圍，亦有相當(dāng)?shù)牟罹?，甚至可因氣候改變，室?nèi)溫濕度所影響。因此橡膠制成品的生產(chǎn)條件，需隨時做適度的調(diào)整，若無，則可能產(chǎn)生制品品質(zhì)的差異。</p><p style="text-indent:25px">影響橡膠O型圈產(chǎn)品縮水率的原因：1、注壓法硫化制品的收縮率比模壓法硫化制品的收縮率要稍小。2、薄型制品（斷面厚度小于3mm）的收縮率比厚制品（斷面10mm以上）的收縮率大0.2%---0.6%。3、同規(guī)格的圓截面和方截面的收縮率近似。4、夾層織物越多，收縮率越小;qz"p9O(j4a6r+d.m。5、襯有金屬鑲嵌的橡膠O型圈制品收縮率較小，且向金屬鑲嵌物方向收縮。6、橡膠O型圈海面制品的膨脹于收縮率波動范圍很大，橡膠O型圈海面制品一般采用一次或者二次硫化，一次發(fā)泡硫化（又成發(fā)孔）模具型腔按制品尺寸縮小60%左右，第二次按制品尺寸放大7%-10%作為定型硫化膠料收縮率是一個變化多端，極為復(fù)雜的問題，也是模具設(shè)計者較需要慎重考慮的問題，目前，還沒有一個真正的，完善的，具有實用價值的計算公式，還只能以憑借經(jīng)驗估計或者通過積累實際測量數(shù)據(jù)作為參考。填充劑用量越多，縮水率越?。缓z量越高縮水率越大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西阻燃橡膠O型圈定制廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438822523768341/3338778.png"></div><p style="text-indent:25px">影響橡膠O型圈產(chǎn)品縮水率的原因：即使是用一種膠料，同一幅模具，在同一工藝條件下三維網(wǎng)技術(shù)論壇:Q"p;_+v.z4S8Y（如硫化溫度相同，硫化壓力相同，生料添入量也相同）硫化，所得到的收縮率也不盡相同。因此以試驗測的制品的收縮率也是一個近似值，再加上受到制品形狀，硬度，成型工藝等因素的影響，因此需要在測的收縮率的平均值上引入修正值，修正方向按上述1-14點。飛邊厚度與半成品質(zhì)量（生料添入量），硫化壓力，膠料硬度，模具結(jié)構(gòu)有直接關(guān)系，生料添入量越多，制品飛邊越厚，硫化壓力越高，制品飛邊越薄，膠料硬度越高，制品飛邊越厚，對于片型產(chǎn)品在計算開模方向的縮水率時應(yīng)考慮到飛邊的厚度。硫化機熱板尺寸于模具尺寸：1．模具尺寸不得過多小于熱板尺寸，這樣容易造成熱板變形。2．模具型腔邊緣應(yīng)在熱板尺寸的70%以內(nèi)o型密封圈。對于片型產(chǎn)品在計算開模方向的縮水率時應(yīng)考慮到飛邊的厚度。陜西阻燃橡膠O型圈定制廠家</p><p style="text-indent:25px">橡膠O型圈壓縮率W的選擇應(yīng)考慮使用條件，靜密封或動密封。陜西阻燃橡膠O型圈定制廠家</p><p style="text-indent:25px">橡膠o型圈的壓縮量一般是主要決定于o型圈的硬度與材料，如果o型圈的硬度是70度時，那么o型圈的壓縮量等于20%。那當(dāng)然，o型圈的硬度越低，o型圈的壓縮量就越大，主要用于低壓力的場所。那么o型圈的硬度越高，o型圈的壓縮量就越小，主要用于高壓力、耐壓、阻力小的環(huán)境使用。以此類推，就可以得到你所需要的任何硬度o型圈的壓縮量。選擇橡膠o型圈規(guī)格時首先要確定好o型圈的材料，目前在工業(yè)零件，生活中o型圈的材料有NBR丁腈橡膠，NR天然橡膠，CR氯丁橡膠，EPDM三元乙丙橡膠，HNBR氫化丁腈橡膠，SILICOME硅膠，F(xiàn)KM，VITON，氟橡膠，F(xiàn)LS硅氟橡膠，PU聚氨酯，SBR丁苯橡膠，Buna丁納橡膠，丙烯酸酯橡膠ACM，PTFE，聚四氟乙烯等等。以上材料各有各的去向與用途，有耐油的，有耐化學(xué)物質(zhì)，有耐高低溫，耐磨等等。陜西阻燃橡膠O型圈定制廠家</p><p> 無錫萬和橡塑有限公司（原無錫萬和精密軸承有限公司）位于無錫玉祁工業(yè)園區(qū)，是國內(nèi)專業(yè)從事橡膠制品、塑料制品的專業(yè)廠家。公司是集研究開發(fā)、生產(chǎn)、銷售、技術(shù)咨詢于一體的綜合型企業(yè)。公司技術(shù)力量雄厚。擁有國內(nèi)的注塑設(shè)備、模壓設(shè)備、檢測設(shè)備及橡塑專業(yè)的定制生產(chǎn)設(shè)備。公司可生產(chǎn)制作的原料材質(zhì)有：丁腈膠，三元乙丙膠，丁基膠，氯丁膠，氯醇膠，硅膠，氟膠，聚氨酯，聚四氟乙烯等，塑料有：通用塑料(聚乙烯、聚丙烯、聚氯乙烯、聚苯乙烯、ABS等)，熱固性塑料(酚醛、環(huán)氧樹脂、不飽和聚酯、聚氨酯、有機硅、氨基樹脂等)，熱固性塑料(酚醛、環(huán)氧樹脂、不飽和聚酯、聚氨酯、有機硅、氨基樹脂等)，熱塑性工程塑料(聚酰胺PA、聚碳酸酯、聚甲醛、PET、PBT等塑料)。共兩大系列200多個品種。產(chǎn)品可廣泛應(yīng)用于化工、印染、顏料、儲運、電廠、稀土、冶金、電子、環(huán)保、制藥、釀造、電機、氣動、汽車等行業(yè)。公司可根據(jù)客戶提供的溫度、使用條件等不同為客戶選擇的使用原料、來達到客戶的滿意。經(jīng)過十余年的經(jīng)營，公司產(chǎn)品和服務(wù)贏得了諸多的合作和好評。歡迎各位客戶蒞臨本廠指導(dǎo)工作和商談合作、共同發(fā)展?。。?</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2955731.html</p></div></div></div></div></div><div id="77vrdjp" class="page-right twoColRt"><div id="thn7ntx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="b7hx97x" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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