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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="fdeabc8" 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>閥座廠家直供,閥座</p><p><span>***更新：</span>2020-12-09 08:23:54</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="a7htzvm" 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(kāi)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="3u88prx" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="k2n3kb3" class="box"><p><p style="text-indent:25px">閥座能耐濃酸、濃堿、強(qiáng)氧化劑(如王水)和任何濃度沸騰的氫氟酸等介質(zhì)。聚三氟氯乙烯：聚三氟氯乙烯(PCTFE-F3)具有優(yōu)良的耐寒性，強(qiáng)度和硬度高，閥座廠家直供，尺寸穩(wěn)定性好，無(wú)冷流傾向。使用溫度在-195~120°C，密度為21g/cm3，導(dǎo)熱系數(shù)為0058W/(mc)，閥座廠家直供，線膨脹系數(shù)為(415~710)乘以10-5/°C，抗拉強(qiáng)度為35"40MPa，彈性模量為1300MPa，抗壓強(qiáng)度為50~70MPa，彎曲強(qiáng)度為70MPa。能耐較高溫下的無(wú)機(jī)酸、較低溫度下的鹽溶液強(qiáng)氧化劑，閥座廠家直供，也能耐室溫下的大多數(shù)有機(jī)介質(zhì)。球閥閥座的密封原理依其結(jié)構(gòu)而異常用的閥座結(jié)構(gòu)可分為固定閥座浮動(dòng)球體與浮動(dòng)閥座固定球體兩大類(lèi)。彈性閥座需要借助于彈性元件。閥座廠家直供</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥座廠家直供,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581930586981/8695791.png"></div><p style="text-indent:25px">對(duì)于閥座后兩處的泄漏叫做外漏，即介質(zhì)從閥內(nèi)泄漏到閥外。外漏會(huì)造成物料損失，污染環(huán)境，嚴(yán)重時(shí)還會(huì)造成事故。對(duì)于易燃易爆、有毒或有放射的介質(zhì)，外漏更是不能允許的，因而閥門(mén)必須具有可靠的密封性能。波紋管安全閥閥座上的一個(gè)孔的作用：如果這個(gè)彈簧閥是一般形式的，那么這個(gè)孔會(huì)堵住，防止介質(zhì)從此口泄露。如果這個(gè)彈簧閥是平衡波紋管式的，那么這個(gè)孔是打開(kāi)的。波紋管會(huì)將閥腔與彈簧腔完全隔離，當(dāng)閥門(mén)開(kāi)啟，波紋管壓縮，彈簧腔內(nèi)壓力會(huì)升高，從而阻礙安全閥的起跳性能。閥座廠家直供閥座液壓驅(qū)動(dòng)設(shè)備呈現(xiàn)缺點(diǎn)時(shí)，應(yīng)找到修理人員及時(shí)找到缺點(diǎn)，停止修理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥座廠家直供,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581913281946/7371774.png"></div><p style="text-indent:25px">閥座和閥瓣還有閥芯區(qū)別：三者的作用不同：閥座的作用：用于支撐閥芯全關(guān)位置，并構(gòu)成密封副。閥瓣的作用：閥瓣–球形閥瓣，可以較大限度提升，并使壓降減小到較小程度。經(jīng)過(guò)硬化處理，較大限度延長(zhǎng)使用壽命。閥芯的作用：減壓閥中的閥芯是實(shí)現(xiàn)控制壓力的主要零部件之一。三者的特點(diǎn)不同：閥座的特點(diǎn)：耐腐蝕性和耐磨損性；較長(zhǎng)的工作時(shí)間；耐高壓；尺寸精度高；對(duì)推力負(fù)荷和高溫極好的承受力;適用于大多數(shù)的客運(yùn)汽車(chē)，輕型和重型卡車(chē)，柴油發(fā)動(dòng)機(jī)和固定工業(yè)用發(fā)動(dòng)機(jī)。</p><p style="text-indent:25px">閥座構(gòu)造簡(jiǎn)單、體積小、重量輕，只由少數(shù)幾個(gè)零件組成。而且只需旋轉(zhuǎn)90°即可快速啟閉，操作簡(jiǎn)單，同時(shí)閥座具有良好的流體控制特性。閥座處于完整開(kāi)啟位置時(shí)，閥板厚度是介質(zhì)流經(jīng)閥座體時(shí)獨(dú)一的阻力，因而經(jīng)過(guò)該閥座所產(chǎn)生的壓力降很小，故具有較好的流量控制特性。閥座有彈密封和金屬的密封兩種密封型式。彈性密封閥座，密封圈能夠鑲嵌在閥座體上或附在閥板周邊。采用金屬密封的閥座普通比彈性密封的閥座壽命長(zhǎng)，但很難做到完整密封。金屬密封能順應(yīng)較高的工作溫度，彈性密封則具有受溫度限制的缺點(diǎn)。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="閥座廠家直供,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581842022132/1905111.png"></div><p style="text-indent:25px">儀表截止閥閥座密封面的加工方法：在待加工閥門(mén)閥座密封面粗加工后，將所述的待加工閥門(mén)和本精加工裝置的主軸分別固定，沿待加工閥門(mén)閥座密封面軸向進(jìn)給所述精加工裝置的主軸，當(dāng)滾柱與待加工閥門(mén)閥座密封面貼合后，使待加工閥門(mén)閥座密封面和所述精加工裝置的主軸產(chǎn)生相對(duì)轉(zhuǎn)動(dòng)，通過(guò)所述精加工裝置的滾柱對(duì)待加工閥門(mén)閥座密封面滾壓精加工，加工時(shí)，主軸的轉(zhuǎn)速為每分鐘100～1000轉(zhuǎn)，滾壓深度t＝001～002mm。產(chǎn)品加工現(xiàn)場(chǎng)如圖3所示。本閥門(mén)閥座密封面精加工裝置結(jié)構(gòu)簡(jiǎn)單，加工時(shí)間短，操作方便，閥門(mén)閥座密封面粗加工后，用滾壓頭一次精軋，10s左右可以完成。球閥閥座的密封原理依其結(jié)構(gòu)而異常用的閥座結(jié)構(gòu)可分為固定閥座浮動(dòng)球體與浮動(dòng)閥座固定球體兩大類(lèi)。閥座廠家直供</p><p style="text-indent:25px">隨著防化學(xué)腐蝕的合成橡膠在閥座上的應(yīng)用，閥座的性能得以提高。閥座廠家直供</p><p style="text-indent:25px">金屬密封閥座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。軟密封閥座普通式的特點(diǎn)是在預(yù)緊力或流體壓力作用下閥座與球體壓緊，并使閥座材料產(chǎn)生彈塑性變形而達(dá)到密封，其密封效果取決于閥座在流體壓力或預(yù)緊力的作用下補(bǔ)償球體圓度和表面微觀不平度的能力。因此，閥座與球體之間必須具有足夠大的密封比壓。彈性閥座借助于彈性元件，如金屬?gòu)椈杉芎蛷椈傻?，在預(yù)緊力或流體壓力下產(chǎn)生彈性變形，以補(bǔ)償溫差、壓力和磨損等外界條件變化對(duì)球體密封性能的影響。閥座廠家直供</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，為員工打造良好的辦公環(huán)境。致力于創(chuàng)造***的產(chǎn)品與服務(wù)，以誠(chéng)信、敬業(yè)、進(jìn)取為宗旨，以建汽輪機(jī)軸系檢修維護(hù),汽輪機(jī)轉(zhuǎn)子磨損修復(fù)產(chǎn)品為目標(biāo)，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司以用心服務(wù)為重點(diǎn)價(jià)值，希望通過(guò)我們的專(zhuān)業(yè)水平和不懈努力，將市政公用工程，管道工程，機(jī)電設(shè)備安裝、維修（除特種設(shè)備），化工產(chǎn)品及原料（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）、儀器儀表、五金交電、橡塑制品、建筑材料、裝潢材料、電子產(chǎn)品、日用百貨的銷(xiāo)售，機(jī)械設(shè)備技術(shù)領(lǐng)域內(nèi)的技術(shù)開(kāi)發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)咨詢(xún)和技術(shù)服務(wù)。等業(yè)務(wù)進(jìn)行到底。自公司成立以來(lái)，一直秉承“以質(zhì)量求生存，以信譽(yù)求發(fā)展”的經(jīng)營(yíng)理念，始終堅(jiān)持以客戶的需求和滿意為重點(diǎn)，為客戶提供良好的維修高壓主汽門(mén)、高壓調(diào)門(mén)，維修中壓主汽門(mén)、中壓調(diào)門(mén)，閥座的車(chē)削、堆焊、補(bǔ)焊，熱處理、研磨，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2331690.html</p></div></div></div></div></div><div id="7v9xsyz" class="page-right twoColRt"><div id="nw3g3zi" class="box01 margin10 clearfix"><h3><a 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