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class="proBig"><div id="m8eabs7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581888252586/135538.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="l3j3opw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581888252586/135538.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="728djvc" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>鄭州電磁閥座,閥座</p><p><span>***更新：</span>2021-01-04 02:17:53</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dt323tx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海含商建設(shè)工程有限公司</a></p><p><span>聯(lián)系人：</span>朱瑩</p><p><span>郵箱: </span>Irene_zy516@163.com</p><p><span>電話: </span>13918191286</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://shhanshang.shop.88360.com</p><p><span>手機(jī): </span>021-58210069</p><p><span>地址: </span>上海市崇明區(qū)新河鎮(zhèn)新申路921弄2號(hào)L區(qū)228室(上海富盛經(jīng)濟(jì)開發(fā)區(qū))</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="87nd7rt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tcyznjk" class="box"><p><p style="text-indent:25px">組合式由彈簧組閥座與活塞式閥座組合而成。前者起主要密封作用，后者接通控制壓力，起輔助密封作用。硬密封閥座：本體堆焊式閥座是在某種金屬材料上堆焊硬質(zhì)合金，閥座帶有一個(gè)彈性尾座，有利于減少密封面的摩擦損傷。多層式密封閥座是多層不銹鋼片和多層薄石墨片交替疊放經(jīng)特殊的加工手段卷壓制而成的，提高了高溫高壓下的性能?？招墓苁矫芊忾y座內(nèi)外是襯套，中間是不銹鋼管，靠空心的彈力使閥座壓緊球體。旋轉(zhuǎn)密封閥座主要特點(diǎn)是閥門在啟閉過程中，閥座可沿通道軸線作旋轉(zhuǎn)運(yùn)動(dòng)，鄭州電磁閥座，其結(jié)構(gòu)在閥座的圓周上分布一圈齒牙，球體每關(guān)閉一次，鄭州電磁閥座，閥座旋轉(zhuǎn)一個(gè)齒，鄭州電磁閥座。雙級密封式閥座對于承受較大密封力的采用橡膠和塑料組合密封結(jié)構(gòu),橡膠主要起密封作用。鄭州電磁閥座</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州電磁閥座,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581888252586/135538.png"></div><p style="text-indent:25px">閥座除濃硫酸及硝酸外，能耐大多數(shù)及無機(jī)溶劑的侵蝕，可在200~260℃的蒸汽中長期使用。聚酰亞胺（PI）是一種新型耐高溫工程塑料，可在-240~260℃的空氣中長期使用，具有優(yōu)異的電絕緣性、耐磨性、抗高溫輻射性能和物理機(jī)械性能。抗拉強(qiáng)度為100MPa，彈性模量為4MPa。在室溫下能耐稀酸和大多數(shù)有機(jī)溶劑，但不耐強(qiáng)氧化酸和強(qiáng)酸，也不宜長期浸于水中。金屬密封表面硬度高且有合適的硬度差。可通過表面硬化來提高硬度，增強(qiáng)耐磨性能。金屬密封材料主要有鉻基硬質(zhì)合金、鈷基硬質(zhì)合金、鎳合金、碳化鎢、不銹鋼等。南昌蝶閥閥座大修聚四氟乙烯閥座彈性模量為400MPa。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州電磁閥座,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581842022132/1905111.png"></div><p style="text-indent:25px">橡膠閥座具有特殊性能，耐熱、耐寒、耐化學(xué)腐蝕、耐油、耐溶劑、耐輻射等特殊性能橡膠制品使用的稱為特種橡膠。特種橡膠有:丁腈橡膠(NBR)、硅橡膠、氟橡膠、聚氨酯橡膠、聚硫橡膠、聚丙烯酸酯橡膠(UR)、氯醚橡膠、氯化聚乙烯橡膠(CPE)、氯磺化聚乙烯(CSM)、丁吡橡膠等。實(shí)際上，通用橡膠和特種橡膠之間并無嚴(yán)格的界限，如乙丙橡膠兼具上述兩方面的特點(diǎn)。通用橡膠與特種橡膠之間的有:氯丁橡膠(CR)、乙丙橡膠(EPDM)、丁基橡膠(IIR)。天然膠閥座適用藥品食品。海帕倫閥座有較好的抗酸堿性，嚴(yán)禁用于蒸汽。</p><p style="text-indent:25px">丁腈橡膠(NBR)閥座:耐油、耐熱、耐磨同時(shí)具有良好的耐水性、氣密性及優(yōu)良的粘結(jié)性能。在石油管道中應(yīng)用較多，缺點(diǎn)是不耐低溫、不耐臭氧、絕緣性能很差，彈性也一般。聚四氟乙烯(PTFE):一種氟塑料，這種材料有著很強(qiáng)的抗酸抗堿、抗各種有機(jī)溶劑性能。同時(shí)該材料耐高溫，可以在260°C連續(xù)使用，較高使用溫度可以達(dá)到290-320°C聚四氟乙烯的出現(xiàn)，成功解決了化工、石油、制藥等行業(yè)領(lǐng)域的諸多問題。金屬硬密封(硬質(zhì)合金):金屬硬密封閥座的材質(zhì)有著非常好的耐高溫高壓、耐腐蝕、耐磨損等特性，很好的彌補(bǔ)了軟密封材質(zhì)不耐高溫高壓的缺陷。聚四氟乙烯閥座導(dǎo)熱系數(shù)為025W/(mc)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄭州電磁閥座,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582166787755/8558756.png"></div><p style="text-indent:25px">金屬硬密封閥座有以下特點(diǎn)：利用標(biāo)準(zhǔn)元件或標(biāo)準(zhǔn)參數(shù)的元件，按典型動(dòng)作與塊體構(gòu)成標(biāo)準(zhǔn)回路，選塊疊積組成系統(tǒng)，很大的的縮短了液壓系統(tǒng)的占地面積。結(jié)構(gòu)較為復(fù)雜，加工有難度。閥門的密封性能是指閥門各密封部位阻止介質(zhì)泄漏的能力，它是閥門重要的技術(shù)性能指標(biāo)。閥門的密封部位有三處：啟閉件與閥座兩密封面間的接觸處；填料與閥桿和填料函的配合處；閥體與閥蓋的連接處。其中前一處的泄漏叫做內(nèi)漏，也就是通常所說的關(guān)不嚴(yán)，它將影響閥門截?cái)嘟橘|(zhì)的能力。對于截?cái)嚅y類來說，內(nèi)漏是不允許的。閥座結(jié)構(gòu)簡略、體積小、重量輕，只由少量幾個(gè)零件組成。鄭州電磁閥座</p><p style="text-indent:25px">聚三氟氯乙烯閥座具有優(yōu)良的耐寒性,強(qiáng)度和硬度高。鄭州電磁閥座</p><p style="text-indent:25px">閥座有哪些優(yōu)點(diǎn)？1、啟閉方便迅速、省力、流體阻力小，可以經(jīng)常操作。2、結(jié)構(gòu)簡單，外形尺寸小，結(jié)構(gòu)長度短，體積小，重量輕，適用于大口徑的閥座。3、可以運(yùn)送泥漿，在管道口積存液體少。4、低壓下，可以實(shí)現(xiàn)良好的密封。5、調(diào)節(jié)性能好。6、全開時(shí)閥座通道有效流通面積較大，流體阻力較小。7、啟閉力矩較小，由于轉(zhuǎn)軸兩側(cè)閥板受介質(zhì)作用基本相等，而產(chǎn)生轉(zhuǎn)矩的方向相反，因而啟閉較省力。8、密封面材料一般采用橡膠、塑料、故低壓密封性能好。9、安裝方便。10、操作靈活省力，可選擇手動(dòng)、電動(dòng)、氣動(dòng)、液壓方式。鄭州電磁閥座</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司專注技術(shù)創(chuàng)新和產(chǎn)品研發(fā)，發(fā)展規(guī)模團(tuán)隊(duì)不斷壯大。一批專業(yè)的技術(shù)團(tuán)隊(duì)，是實(shí)現(xiàn)企業(yè)戰(zhàn)略目標(biāo)的基礎(chǔ)，是企業(yè)持續(xù)發(fā)展的動(dòng)力。上海含商建設(shè)工程有限公司主營業(yè)務(wù)涵蓋維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。一直以來公司堅(jiān)持以客戶為中心、維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨市場為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2691820.html</p></div></div></div></div></div><div id="82qm3w8" class="page-right twoColRt"><div id="axikozv" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cvb2io2" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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