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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>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>江蘇球閥閥座大修,閥座</p><p><span>***更新：</span>2021-01-24 07:18:25</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="azt8jqs" 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="aegnzbs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sh2gxya" class="box"><p><p style="text-indent:25px">閥座能耐較高溫下的無機(jī)酸、較低溫度下的鹽溶液強(qiáng)氧化劑，也能耐室溫下的大多數(shù)有機(jī)介質(zhì)。聚全氟乙丙烯（PFEP-F46）具有耐高溫和耐低溫性能，可在-85~205℃范圍內(nèi)長(zhǎng)期工作，密度為21g/cm3，導(dǎo)熱系數(shù)為 025W/（mc），線膨脹系數(shù)為（95~196）×10-5/℃，抗拉強(qiáng)度為19~20MPa，抗壓強(qiáng)度為710MPa，彎曲強(qiáng)度為14MPa。具有與聚四氟乙烯相當(dāng)?shù)幕瘜W(xué)穩(wěn)定性，能耐各種濃度的無機(jī)酸、堿、醇，江蘇球閥閥座大修，江蘇球閥閥座大修、酮、烴類、鹵代烴、芬烴、油脂和去污劑等。聚酰胺（N1010）在常溫下具有較高的抗拉強(qiáng)度，良好的沖擊韌性，高的硬度和疲勞強(qiáng)度，特別是耐磨性和自潤(rùn)滑性能優(yōu)異，低摩擦系數(shù)（003）等特點(diǎn)。各類橡膠，江蘇球閥閥座大修,塑料，金屬材料均可作為閥座材質(zhì)。江蘇球閥閥座大修</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇球閥閥座大修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582221338537/7912539.png"></div><p style="text-indent:25px">聚四氟乙烯閥座有什么特點(diǎn)具有耐低溫、耐磨，耐腐蝕，具有自動(dòng)回彈性等優(yōu)良性能，在軟密封球閥和軟密封蝶閥中普遍應(yīng)用。金屬閥座與閥體連接，其一端面為密封面，與關(guān)閉件的密封面相接觸，以切斷管路介質(zhì)。閥座由內(nèi)外圓柱面、端平面及螺紋面所組成。根據(jù)閥門的用途，閥座可分別用銅、不銹鋼、不銹鋼基體堆焊硬質(zhì)合金或碳素鋼基體堆焊不銹鋼等制成。為保證閥座密封面具有一定的硬度和耐磨性，Cr13型不銹鋼閥座需經(jīng)過熱處理。閥座通常采用鍛、鑄件毛坯，也可以用管材直接加工。江蘇球閥閥座大修閥座在裝置前要確認(rèn)產(chǎn)品功能和介質(zhì)流向箭頭是否與運(yùn)動(dòng)工況相符。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇球閥閥座大修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581774717450/7860008.png"></div><p style="text-indent:25px">閥座密度為15g/cm3，導(dǎo)熱系數(shù)為025W/(m#c)，線膨脹系數(shù)約為105×10-5/℃，抗拉強(qiáng)度為196MPa，彈性模量為1300MPa，抗壓強(qiáng)度為310MPa，彎曲強(qiáng)度為310MPa，耐化學(xué)性能良好，耐弱酸、弱堿和一般溶液，耐油性能優(yōu)異。對(duì)位聚苯：對(duì)位聚苯(PPL)具有耐高溫性，耐化學(xué)腐蝕性，抗溶劑性，自潤(rùn)滑性，耐輻射性，低摩擦系數(shù)(013)等特點(diǎn)。密度為2g/cm3，線膨脹系數(shù)約為51×10-5/℃，硬度為80HS，抗拉強(qiáng)度為16MPa，抗壓強(qiáng)度為48MPa，彎曲強(qiáng)度為28MPa。能耐硫酸、氫氟酸等強(qiáng)酸強(qiáng)堿的腐蝕。聚醚醚酮：聚醚醚酮(PEEK)具有熱固性塑料的耐熱性，化學(xué)穩(wěn)定性和熱塑性塑料的成型加工性能，連續(xù)使用溫度可達(dá)240℃以上，玻璃纖維增強(qiáng)可達(dá)300℃以上，密度為13g/cm3，抗拉強(qiáng)度為162MPa，彎曲強(qiáng)度為233MPa。</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)，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，閥座旋轉(zhuǎn)一個(gè)齒。波紋管式閥座設(shè)計(jì)時(shí)，應(yīng)保證閥座密封中心小于波紋管中徑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇球閥閥座大修,閥座" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408581888252586/135538.png"></div><p style="text-indent:25px">儀表截止閥閥座密封面的加工方法：在待加工閥門閥座密封面粗加工后，將的待加工閥門和本精加工裝置的主軸分別固定，沿待加工閥門閥座密封面軸向進(jìn)給精加工裝置的主軸，當(dāng)滾柱與待加工閥門閥座密封面貼合后，使待加工閥門閥座密封面和精加工裝置的主軸產(chǎn)生相對(duì)轉(zhuǎn)動(dòng)，通過精加工裝置的滾柱對(duì)待加工閥門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＝0.01～0.02mm。閥座應(yīng)具有一定的強(qiáng)度和剛度，間隙適中，受壓時(shí)不易變形。金屬密封閥座應(yīng)滿足高溫、高壓、強(qiáng)腐蝕、零泄漏、長(zhǎng)壽命、防火安全和耐壓耐磨等功能。閥座因應(yīng)考慮破裂前的變形。江蘇球閥閥座大修</p><p style="text-indent:25px">聚四氟乙烯閥座彎曲強(qiáng)度為14MPa。江蘇球閥閥座大修</p><p style="text-indent:25px">閥座是閥門內(nèi)可拆卸面部件，用于支撐閥芯全關(guān)位置，并構(gòu)成密封副。它可將閥座前管路較高的液體壓力減少至閥座后管路所需的水平。這里的傳輸介質(zhì)主要是水。閥座普遍用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場(chǎng)合，以保證給水系統(tǒng)中各用水點(diǎn)獲得適當(dāng)?shù)姆?wù)水壓和流量。鑒于水的漏失率和浪費(fèi)程度幾乎同給水系統(tǒng)的水壓大小成正比，因此閥座具有改善系統(tǒng)運(yùn)行工況和潛在節(jié)水作用，據(jù)統(tǒng)計(jì)其節(jié)水效果約為30%。閥座的構(gòu)造類型很多，以往常見的有薄膜式、內(nèi)彈簧活塞式等。閥座的基本作用原理是靠閥座內(nèi)流道對(duì)水流的局部阻力降低水壓，水壓降的范圍由連接閥座瓣的薄膜或活塞兩側(cè)的進(jìn)出口水壓差自動(dòng)調(diào)節(jié)。江蘇球閥閥座大修</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家服務(wù)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下維修高壓主汽門、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、研磨深受客戶的喜愛。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2985577.html</p></div></div></div></div></div><div id="cwy8zg2" 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