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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nxz78ri" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581930586981/8695791.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3a3vnpr" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>浙江球閥閥座檢修,閥座</p><p><span>***更新：</span>2021-01-01 08:23:42</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="zd87spw" 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: </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L區(qū)228室(上海富盛經(jīng)濟開發(fā)區(qū))</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m2wdkm7" class="page-proshow02"><p class="title">詳細說明</p><div id="vk39q2m" class="box"><p><p style="text-indent:25px">閥座在修理拆裝減壓元件時，要謹慎細心，調(diào)換內(nèi)密封件；清理雜物時，浙江球閥閥座檢修，應因勢利導，不要用金屬棒、硬梗撬閥座的活動部位，使用木榔頭和木柄敲擊震動，慢慢拆卸閥座內(nèi)部件，浙江球閥閥座檢修。修理完畢后重新安裝時，一定要和閥座上的流向指示保持一致，浙江球閥閥座檢修。如果需要將閥座安裝在熱水系統(tǒng)時，您必須在閥座和膨脹水箱之間安裝止回閥座。這樣既可以讓膨脹水箱吸收由于熱膨脹而增加的水的體積，又可以防止熱水回流或壓力波動對閥座的影響，確保閥座長期正常工作。閥座因應考慮拉仲和壓縮強度。浙江球閥閥座檢修</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江球閥閥座檢修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581930586981/8695791.png"></div><p style="text-indent:25px">上海含商建設工程有限公司小編介紹，閥座與閥體配合的外圓精度為4~6級、光潔度不低于△5。閥座基面的光潔度一般不低于△6。與閥體配合的螺紋精度為3級，光潔度為△5。密封面的光潔度一般為△7~△9。閥門主要為了滿足高溫、高壓及零泄漏等惡劣環(huán)境，為了達到閥門零泄漏的密封性能要求，很大程度上取決于閥門閥座密封面（見圖1）的加工精度，因此對閥門閥座密封面加工精度要求較高，閥門閥座密封面精度的影響因素主要有3個方面：表面粗糙度、角度精度和錐表面的硬度。浙江球閥閥座檢修閥座因應考慮破裂前的變形。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江球閥閥座檢修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582046612006/8114490.png"></div><p style="text-indent:25px">在主軸上設置一環(huán)形支架，各滾柱的中心軸在同一錐面上，滾柱由支架支撐*能產(chǎn)生轉(zhuǎn)動，滾柱的外緣母線形成的錐面與待加工的閥門閥座密封面的錐度相同，滾柱為圓柱形滾柱或圓錐形滾柱，為了便于加工滾柱通常采用圓柱形滾柱，且滾柱的中心所在的錐面與待加工的閥門閥座密封面的錐度相同。采用滾柱冷擠壓研磨的方式對閥門閥座密封面精軋加工，常溫狀態(tài)下對閥門閥座密封面施加壓力，使閥門閥座密封面表面層產(chǎn)生塑性變形，修正閥門閥座密封面表面微觀幾何形狀，同時可使閥門閥座密封面表面層的金相組織發(fā)生改變，形成有利的壓應力分布，提高了閥門閥座密封面的耐磨性和硬度。</p><p style="text-indent:25px">波紋管式閥座一般采用電子束焊或氬弧焊與閥座和導向套相連。設計時，應保證閥座密封中心小于波紋管中徑，此結(jié)構(gòu)具有密封性可靠彈性補償范圍大三維空間靈活的特點。注脂密封式閥座可以增加密封性能，減小閥座的摩擦和磨損延長使用壽命，并防止球閥在使用過程中，因閥座損壞或火災而造成事故。可在閥座上增設一組注脂孔。注脂密封*起輔助密封作用或作為臨時應急措施。雙推動式閥座是當N室與控制壓力接通時，閥座與球體壓緊并保持密封。當M室通控制壓力而N室向外界排出壓力時，閥座即后退，使之與球體脫離。金屬密封閥座產(chǎn)品不適合裝置于管路結(jié)尾。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江球閥閥座檢修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581842022132/1905111.png"></div><p style="text-indent:25px">彈簧組合式閥座是沿閥門通道橫向截面圓周均布一組壓縮彈簧或*用一只碟型彈簧的推力，始終保持閥座壓緊球體而達到預緊狀態(tài)?；钊介y座是依靠進口介質(zhì)壓力產(chǎn)生密封力，閥座被推動壓緊球體，密封圈產(chǎn)生彈塑性變形實現(xiàn)密封。截斷泄放閥座在閥腔內(nèi)的壓力異常升高到大于下游端壓力時，形成的壓差作用產(chǎn)生向外推力，克服彈簧力使閥座與球體脫離，實現(xiàn)閥腔的壓力向下游排放，之后在彈簧的作用下，閥座重新與球體貼合。雙倍運動閥座是當中腔壓力大于出口壓力時，使閥座壓緊球體，密封圈產(chǎn)生彈塑性變形實現(xiàn)密封。閥座和密封圈是球閥的關鍵部件。浙江球閥閥座檢修</p><p style="text-indent:25px">波紋管式閥座結(jié)構(gòu)具有密封性可靠的特點。浙江球閥閥座檢修</p><p style="text-indent:25px">閥座密封材料主要有特殊高分子和金屬密封2類。1、特殊高分子材料：高分子材料分通用高分子材料和特殊高分子材料兩大類。通用高分子材料主要有聚氯乙烯、聚乙烯、聚丙烯、環(huán)氧樹脂、酚醛樹脂和呋喃樹脂等。特殊高分子材料主要有聚四氯乙烯、聚三氟氯乙烯、聚全氟乙丙烯、聚醚醚酮和聚酰亞胺等。2、金屬密封材料：金屬密封表面硬度高且有合適的硬度差?？赏ㄟ^表面硬化來提高硬度，增強耐磨性能。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。浙江球閥閥座檢修</p><p style="text-indent:25px">上海含商建設工程有限公司是一家服務型類企業(yè)，積極探索行業(yè)發(fā)展，努力實現(xiàn)產(chǎn)品創(chuàng)新。公司是一家有限責任公司（自然）企業(yè)，以誠信務實的創(chuàng)業(yè)精神、專業(yè)的管理團隊、踏實的職工隊伍，努力為廣大用戶提供***的產(chǎn)品。公司擁有專業(yè)的技術(shù)團隊，具有維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補焊，熱處理、研磨等多項業(yè)務。上海含商建設順應時代發(fā)展和市場需求，通過**技術(shù)，力圖保證高規(guī)格高質(zhì)量的維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補焊，熱處理、研磨。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2658142.html</p></div></div></div></div></div><div id="8ml4dr8" class="page-right twoColRt"><div id="ospu87t" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pog4utq" class="recomPic likePro"><a 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