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class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438818163309238/5947862.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="0z7kheq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438818163309238/5947862.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fd7e7qn" 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>江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家,橡膠O型圈</p><p><span>***更新：</span>2020-12-30 04:20:16</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="92wo27r" 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(jī): </span>0510-83300919</p><p><span>地址: </span>無錫惠山經(jīng)濟(jì)開發(fā)區(qū)玉祁配套區(qū)蓉塘路28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="r2gseqs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cvkhjgd" class="box"><p><p style="text-indent:25px">橡膠O型圈拉伸性能怎樣測定？拉伸性能是測定橡膠O型圈在拉伸載荷作用下的一系列特性的試驗(yàn)，又稱抗拉試驗(yàn)。它是材料機(jī)械性能試驗(yàn)的基本方法之一，主要用于檢驗(yàn)材料是否符合規(guī)定的標(biāo)準(zhǔn)和研究材料的性能。試驗(yàn)儀器：（1）本試驗(yàn)在拉力機(jī)上進(jìn)行，拉力機(jī)應(yīng)符合GB/T528-1998《硫化橡膠或熱塑性橡膠拉伸應(yīng)力應(yīng)變性能的測定》有關(guān)規(guī)定。拉力機(jī)需有導(dǎo)向齒條裝置及測量試樣伸長的裝置。（2）試驗(yàn)夾具是由上、下兩個(gè)直徑至少為12mm的帶滾珠軸承的軸輪組成，當(dāng)兩輪彼此靠近時(shí)，其中新距為25mm以內(nèi)。下夾具帶有齒輪傳動(dòng)裝置，在試驗(yàn)時(shí)應(yīng)與拉力機(jī)上的導(dǎo)向齒條齒合，江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家，江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家。（3）直線型試驗(yàn)夾具采用通用拉伸試驗(yàn)的夾具，但需保證試驗(yàn)過程試樣不斷在夾持處，江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家。由于技術(shù)的落后，國產(chǎn)橡膠密封圈產(chǎn)品只能盡力在中低端商場分上一杯羹。江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438818163309238/5947862.png"></div><p style="text-indent:25px">橡膠O型圈密封結(jié)構(gòu)簡單、密封可靠，因而被普遍使用。在飛機(jī)和航天器中，也經(jīng)常采用這種密封結(jié)構(gòu)，液壓O型圈的硅橡膠，由于硅橡膠是較高子聚合物，空間的各種環(huán)境條件特別是原子氧對其密封性能的影響不可忽視[3,4]。低地球軌道(LEO)的空間環(huán)境主要由N2、O2、Ar、He、H和原子氧AO(AtomicOxygen)組成,其中原子氧的含量較高約占80%,作為LEO環(huán)境中含量較多的粒子，原子氧是氧分子在波長小于243nm的太陽紫外線的光致分解作用下而形成的[5]。原子氧不僅具有很強(qiáng)的氧化性，而且當(dāng)飛行器以軌道速度在LEO中運(yùn)行時(shí),原子氧以7~8km/s的相對速度撞擊材料表面，其撞擊材料的平均動(dòng)能可達(dá)4~5eV，從而引起材料性能的變化造成密封效果發(fā)生變化，所以對于要求泄漏率很小的長期密封，必須研究原子氧對其密封性能影響的規(guī)律。江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438821698768298/6070262.png"></div><p style="text-indent:25px">耐冷媒橡膠O型圈的溝槽設(shè)計(jì)有相關(guān)的國家標(biāo)準(zhǔn)，主要分動(dòng)密封、軸向靜密封和徑向靜密封三種。法蘭、箱蓋等的O形圈采用軸向壓緊更便于裝配和保證密封性能。O型圈也可用作低速旋轉(zhuǎn)運(yùn)動(dòng)及運(yùn)行周期較短的旋轉(zhuǎn)軸密封。當(dāng)圓周速度低于0.5m/s時(shí)，耐冷媒橡膠O型圈選擇可按正常設(shè)計(jì)標(biāo)準(zhǔn);當(dāng)圓周速度大于0.5m/s時(shí)，須考慮拉長的橡膠圈受熱后會(huì)收縮這一現(xiàn)象，故選擇密封圈使其內(nèi)徑比起被它密封的軸徑約大2%，上述現(xiàn)象就可以避免。密封圈在溝槽中安裝后，導(dǎo)致密封圈受到徑向壓縮，耐冷媒O型圈在溝漕中形成微量波紋狀，從而改善了潤滑條件。</p><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(yùn)動(dòng)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(jí)，關(guān)于動(dòng)密封環(huán)槽觸摸面不低于1.6-0.8級(jí)，對于壓力高時(shí)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(shí)，O形圈能夠被流體壓力擠入密封空隙，設(shè)計(jì)時(shí)應(yīng)注意壓力、空隙、O形圈硬度、O形圈斷面直徑這幾個(gè)要素的匹配，必要時(shí)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(shí)進(jìn)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。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="江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家,橡膠O型圈" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438818001551428/3871338.png"></div><p style="text-indent:25px">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(jì)算接頭管徑(d’)單邊過盈量為10~20絲即可，即0.1~0.2mm。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(jì)算裝配發(fā)生單邊靠攏時(shí)候的極限情況，確保這個(gè)時(shí)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(jì)算D’值(O型密封圈溝槽外徑)D’=d22H其中：d2=d1/1.03-1.07轎車、工程機(jī)械、進(jìn)口設(shè)備等修補(bǔ)商場也有著一樣無量的潛力。江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家</p><p style="text-indent:25px">面臨雙面打壓、縫隙求存的民族工業(yè)并不能隨峰突起在一些工地上常?？吹竭@樣的表象。江蘇非標(biāo)橡膠O型圈生產(chǎn)廠家</p><p style="text-indent:25px">橡膠O形圈運(yùn)用不當(dāng)會(huì)加快損壞其密封功能：滑動(dòng)外表的原料對O形圈的壽數(shù)也有影響。滑動(dòng)外表原料的硬度越大、耐磨性越高、堅(jiān)持光亮的才能就越強(qiáng)，O形圈的壽數(shù)也就越長。這也是液壓缸活塞桿外表鍍鉻的重要緣由。同理能夠解說具有相同粗糙度的用銅、鋁合金制成的滑動(dòng)外表比鋼制滑動(dòng)外表對密封圈的矛盾與磨損更為嚴(yán)峻，低硬度、大緊縮量的密封圈不如高硬度、小緊縮量的密封圈經(jīng)用的狀況。矛盾力與O形圈的使用。在動(dòng)密封設(shè)備中，矛盾與磨損是O形圈損壞的重要影響要素。磨損程度首要取決于矛盾力的巨細(xì)。當(dāng)液體壓力細(xì)小時(shí)，O形圈矛盾力的巨細(xì)取決于它的預(yù)緊縮量。當(dāng)作業(yè)液體接受壓力時(shí)，矛盾力隨之作業(yè)壓力的添加而增大。在作業(yè)壓力小于20MPa的狀況下，近似地呈線形聯(lián)系。壓力大于20MPa時(shí)，跟著壓力的添加，O形圈與金屬外表觸摸面積的添加也逐步緩慢，矛盾力的添加也相應(yīng)緩慢。在正常狀況下，O形圈的運(yùn)用壽數(shù)跟著液體壓力的升高將會(huì)近似的呈平方聯(lián)系而減小。江蘇非標(biāo)橡膠O型圈生產(chǎn)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(jī)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(jī)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(gè)品種。產(chǎn)品可廣泛應(yīng)用于化工、印染、顏料、儲(chǔ)運(yùn)、電廠、稀土、冶金、電子、環(huán)保、制藥、釀造、電機(jī)、氣動(dòng)、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(dá)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(píng)。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/2622977.html</p></div></div></div></div></div><div id="zikxpw7" class="page-right twoColRt"><div id="44pwdf2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uwypho2" class="recomPic likePro"><a 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