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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>重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家,非標(biāo)橡膠墊片</p><p><span>***更新：</span>2021-01-06 01:12:15</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="bpltj7v" 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="j7z99jp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zd7vjpd" class="box"><p><p style="text-indent:25px">板式熱交換器橡膠墊片密封原理：常見的橡膠0形環(huán)屬自密封原理，重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家，它的密封功能一直維持到0形環(huán)變形、軟化。這是因?yàn)閷?duì)微小缺陷起密封作用的就是0形環(huán)所承受的壓力。熱交換器橡膠整片的密封則不同。熱交換器得以密封運(yùn)行主要取決于橡膠墊片因壓縮而產(chǎn)生的瞬時(shí)密封應(yīng)力和熱交換器操作壓力之間的比較。密封應(yīng)力大于操作壓力則可保持密封，重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家，反之則發(fā)生泄漏，重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家。因此，熱交換器密封較重要的就是使密封應(yīng)力盡可能達(dá)到較高而且保持盡可能長(zhǎng)的時(shí)間。對(duì)于粘接式密封墊，將徹底除去殘留的物質(zhì)。重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家,非標(biāo)橡膠墊片" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438811050594860/5633131.png"></div><p style="text-indent:25px">金屬纏繞墊：金屬纏繞墊巧妙地利用金屬的耐熱性、回彈性和強(qiáng)度以及非金屬材料的柔軟性，所以密封性能較好，其中又以不銹鋼帶纏繞柔性石墨墊的性能為較佳。其預(yù)緊比壓較石棉纏繞墊小，不存在石棉纖維毛細(xì)孔滲漏的缺點(diǎn)。在油介質(zhì)中，金屬帶材多使用0Cr13，而其它介質(zhì)則推薦使用1Cr18Ni9Ti。不銹鋼帶柔性石墨纏繞墊在氣體介質(zhì)中，使用壓力為14.7MPa(國(guó)內(nèi)有高達(dá)19.6MPa)，在液體中可用至30MPa。溫度-190~+600℃(在無氧、低壓情況下可用至1000℃)。聚四氟乙烯的耐低溫性能良好，它在低溫下的屈服強(qiáng)度較大高于常溫時(shí)的強(qiáng)度。所以聚四氟乙烯纏繞墊可用于低溫介質(zhì)，如液態(tài)烴等。同時(shí)，因加入金屬帶提高了導(dǎo)熱性，聚四氟乙烯纏繞墊使用溫度可達(dá)250℃，在酸性介質(zhì)中可用至9MPa、200℃。重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家尺寸和溝槽已實(shí)現(xiàn)了標(biāo)準(zhǔn)化，價(jià)格便宜，產(chǎn)品易得，便于使用和購(gòu)買。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家,非標(biāo)橡膠墊片" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438813275203781/4289443.png"></div><p style="text-indent:25px">金屬墊片：（1）金屬環(huán)墊金屬環(huán)墊主要用于高壓、高溫的設(shè)備和管道法蘭上。國(guó)家標(biāo)準(zhǔn)和石化行業(yè)標(biāo)準(zhǔn)規(guī)定適用于公稱壓力 2.0 ～42.0MPa ，化工行業(yè)標(biāo)準(zhǔn)適用于 2.5 ～ 16.0MPa ， JB/T89-94 規(guī)定適用于 6.3 、 10 、 16 、 20MPa 。金屬環(huán)墊的使用溫度取決于所使用的金屬材料。金屬環(huán)墊材料的硬度應(yīng)比法蘭密封面材料的硬度低 HB30 ～ 40 ，且其較大值應(yīng)符合相關(guān)標(biāo)準(zhǔn)的規(guī)定。金屬環(huán)墊的密封面不得有劃痕、磕碰、裂紋和疵點(diǎn)，表面粗糙度不大于 Ra1.6 μ m 。采用 10 號(hào)鋼或 08 鋼之稱的金屬環(huán)墊，成品檢驗(yàn)后應(yīng)涂上防銹油（2）金屬齒形墊片金屬齒形墊片可用于公稱壓力 4.0 ～ 16.0 MPa 的凹凸面整體鑄鋼管法蘭和對(duì)焊鋼制管法蘭， 08 或 10 或 0 22Cr17Ni12Mo2 較高使用溫度為 450 ℃ ,0Cr13 較高使用溫度為 540 ℃ ， 0 6Cr19Ni9 較高使用溫度為 600 ℃ 。</p><p style="text-indent:25px">板式換熱器橡膠密封墊片的維護(hù)：但目前有些板式換熱器擁有可再調(diào)節(jié)的功能，也就是可以在出現(xiàn)小量滴漏時(shí)二次將換熱器片組擰固，達(dá)到增加密封墊之間的應(yīng)力，在短時(shí)間內(nèi)有效解決滴漏現(xiàn)象。在新組裝的換熱器中，可以使用較大的組合長(zhǎng)度尺寸，當(dāng)出現(xiàn)滴漏后，再擰緊各組板式換熱器，較大組合長(zhǎng)度尺寸和較小組合長(zhǎng)度尺寸一般都可在熱交換器的銘牌中看到。需注意的是不能小于較小組合長(zhǎng)度尺寸，當(dāng)組合后的換熱器達(dá)到較小組合長(zhǎng)度尺寸仍出現(xiàn)滴漏時(shí)，說明密封墊必須需要改換了。對(duì)橡膠密封墊的使用壽命有著重要影響的原因?yàn)閾Q熱器的工作方式、散熱的介質(zhì)和使用的清潔劑的腐蝕性、較高工作溫度、較高工作壓力、由于過大的壓力和不均衡的壓力而使彈性密封墊的應(yīng)力較大、自然老化。出現(xiàn)這些就要及時(shí)進(jìn)行維護(hù)和保養(yǎng)或是更換。橡膠與金屬?gòu)椈傻膹椥圆煌且环N粘彈材料這就意味著橡膠在長(zhǎng)期變形的情況下會(huì)發(fā)生應(yīng)力松弛。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家,非標(biāo)橡膠墊片" src="https://tyunfile.71360.com/WaterMark/UploadFile/wanhejmzc/637438813054627576/5021030.png"></div><p style="text-indent:25px">纏繞式墊片：(1)纏繞式墊片的適用范圍①石化行業(yè)SH3407-2013 規(guī)定的公稱壓力范圍為 PN 1.0 ～ 25.0MPa ，溫度范圍為：不銹鋼帶和特制石棉帶纏繞墊片 -50 ～ 500 ℃；不銹鋼帶和柔性石墨帶纏繞墊片 -196 ～ 800 ℃（氧化性介質(zhì)≤ 600 ℃ ）；不銹鋼帶和聚四氟乙烯帶纏繞墊片為 -196 ～ 200 ℃。②化工行業(yè)標(biāo)準(zhǔn)HG20160-2009 規(guī)定纏繞式墊片適用于公稱壓力 PN 1.6 ～ 16.0MPa ，溫度范圍為：不銹鋼帶和特制石棉帶纏繞墊片的較高溫度為 500 ℃ ；不銹鋼帶和柔性石墨帶纏繞墊片的較高溫度為 650 ℃ （氧化性介質(zhì)≤ 450 ℃ ）；不銹鋼帶和聚四氟乙烯帶纏繞墊片的較高溫度為 200 ℃ 。一般來說，如果密封面加工良好，壓力不太高時(shí)，宜選用薄墊片。重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家</p><p style="text-indent:25px">對(duì)微小缺陷起密封作用的就是0形環(huán)所承受的壓力。重慶耐高溫非標(biāo)橡膠墊片供應(yīng)廠家</p><p style="text-indent:25px">幾大類墊片的選用解析：聚四氟乙烯在受壓及高溫下易冷流及蠕變，故一般用于低壓、中溫、強(qiáng)腐蝕以及不允許污染的介質(zhì)，如強(qiáng)酸、強(qiáng)堿、鹵素、藥品等。安全使用溫度在150℃，壓力1MPa以下。填充聚四氟乙烯雖然強(qiáng)度高些，但使用溫度也不超過200℃，且耐腐蝕能力下降。聚四氟乙烯包墊較高使用壓力一般不超過2MPa。由于溫度升高，材料發(fā)生蠕變，致使密封壓力明顯下降。即使不升溫，隨著時(shí)間的延長(zhǎng)，密封面的壓緊應(yīng)力也會(huì)下降，產(chǎn)生“應(yīng)力松弛現(xiàn)象。該現(xiàn)象在各種墊片中都會(huì)產(chǎn)生，只是聚四氟乙烯墊的應(yīng)力松弛現(xiàn)象較為嚴(yán)重，應(yīng)予注意。聚四氟乙烯的摩擦系數(shù)較小(壓緊應(yīng)力大于4MPa，摩擦系數(shù)為0.035~0.04)，預(yù)緊時(shí)墊片易向外滑移，所以較好采用凹凸式法蘭面。當(dāng)采用平面法蘭時(shí)，可將墊片外徑接觸螺栓，利用螺栓阻止墊片外滑。重慶耐高溫非標(biāo)橡膠墊片供應(yīng)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(guó)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(guó)內(nèi)的注塑設(shè)備、模壓設(shè)備、檢測(cè)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(yíng)，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/2718526.html</p></div></div></div></div></div><div id="xlbrhnl" class="page-right twoColRt"><div id="xvlrzfl" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="d7d9l9v" class="recomPic likePro"><a 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