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clearfix"><div id="au3l28q" class="twoCol"><div id="nxeosoq" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/second-wjgj_guanjianbi/">管件</a>?<a href="http://www.cdcfah.com/cp/third-guanjianbi_falanvt/">法蘭</a>?湖南鋼管標(biāo)準(zhǔn) 服務(wù)至上河北長洪管業(yè)供應(yīng)</p><div id="m2mgceb" class="leftbox clearfix"><h1>湖南鋼管標(biāo)準(zhǔn) 服務(wù)至上河北長洪管業(yè)供應(yīng)</h1><div id="qaspmy3" class="proBig"><div id="ziur7of" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211411033320_jiazong01_2080477.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="crt8bya" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211411033320_jiazong01_2080477.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ncz3bd3" 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>河北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖南鋼管標(biāo)準(zhǔn)</p><p><span>***更新：</span>2020-06-06 04:03:30</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="28fc3se" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北長洪管業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>賈世豪</p><p><span>郵箱: </span>2047452166@qq.com</p><p><span>電話: </span>17363075791</p><p><span>傳真: </span>0317_5538516</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0317-5538516</p><p><span>地址: </span>河北省滄州市孟村回族自治縣孟村鎮(zhèn)二街</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="vkce8uw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="o3yvpw8" class="box"><p><p> 螺旋鋼管在表面出現(xiàn)機(jī)械損傷以后，湖南鋼管標(biāo)準(zhǔn)，我們要進(jìn)行修復(fù)，一般情況下我們是采用什么樣的方法來進(jìn)行修復(fù)的呢?我們來了解一下吧!對于表面機(jī)械損傷一般采用加套的辦法加以修復(fù)，套由兩塊組成，兩條縱向焊縫由兩塊板條采用諾焊的辦法焊接。其優(yōu)點(diǎn)為在鋼管的本體上沒有焊縫?？v縫為帶襯板的對接焊縫，管體本身成為上下兩塊套的襯板。無論采用哪種方法.套必須緊箍在鋼管上。 </p> <p> 當(dāng)劃痕未造成泄漏時，套與螺旋鋼管管體之間的兩道環(huán)形角焊縫不必焊接，湖南鋼管標(biāo)準(zhǔn)，如泄漏時，則需焊上，湖南鋼管標(biāo)準(zhǔn)，這時套簡直接承受液體造成的內(nèi)壓，因而，在這種情況下，套簡的厚度一般不低于管壁厚。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南鋼管標(biāo)準(zhǔn)" src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211411033320_jiazong01_2080477.jpg"></div><p> 上面所述的方法是在施工時發(fā)現(xiàn)有機(jī)械損傷的修法。至于在操作狀態(tài)下發(fā)作泄漏時(沒有開裂)，上下兩塊套商之間一般選用螺栓連接，而且在套筒的內(nèi)部有環(huán)狀的密封圈，隨著螺柱上緊，密封因壓緊在螺旋鋼管管體與套筒之間，使油、氣不致漏出，其縱向也有密封。 </p> <p> 直縫焊管生產(chǎn)線2條，直徑57mm-711mmERW高頻焊管，直徑355mm-1820mmJCOE雙面埋弧焊直縫管，年生產(chǎn)5萬噸;產(chǎn)品首要用于石油、天然氣、煤氣、排水、蒸汽等流體遠(yuǎn)程輸送管線及供熱、疏浚、化工、制冷、井壁套管、打樁等工程配套。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南鋼管標(biāo)準(zhǔn)" src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211393063880_jiazong01_6506342.jpg"></div><p> 由于螺旋鋼管的卷板軋制方向不是垂直鋼管軸線方向(其夾解取決于鋼管的螺旋角)，而直縫鋼管的鋼板軋制方向垂直于鋼管軸線方向，因而，螺旋鋼管材料的抗裂性能優(yōu)于直縫鋼管。管子在承受內(nèi)壓時，通常在管壁上產(chǎn)生兩種主要應(yīng)力，即徑向應(yīng)力δY和軸向應(yīng)力δX。焊縫處合成應(yīng)力δ=δY(l/4sin2α+cos2α)1/2，其中，α為螺旋鋼管焊縫的螺旋角。螺旋鋼管焊縫的螺旋角一般為50-75。 </p> <p> 我公司本著“質(zhì)優(yōu)高（gao）效，熟約重譽(yù)”的經(jīng)營理念服務(wù)宗旨為廣大客戶提供質(zhì)優(yōu)價廉產(chǎn)品和售后服務(wù)，得到了各界新老用戶的支持和贊譽(yù)。經(jīng)過多年的經(jīng)營，現(xiàn)已同全國各大鋼廠建立了穩(wěn)固的供貨體系，和使用單位建立了良好的銷售體系。我公司鄭重承諾，在同等的質(zhì)量下，保證的價格，完善的服務(wù)，崇高的信譽(yù)來答謝社會各界朋友的支持和厚愛，愿與各界朋友真誠合作，攜手共進(jìn)，共創(chuàng)偉業(yè)，共鑄輝煌！ </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; 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