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class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="zxjsofb" class="clearfix searchWrap"><div id="f8mqgnz" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="2zzbxzl" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="nizqcyu" class="twoCol"><div id="bprdpvc" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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>?廣西鋼管官網(wǎng) 真誠(chéng)推薦河北長(zhǎng)洪管業(yè)供應(yīng)</p><div id="lam7mm8" class="leftbox clearfix"><h1>廣西鋼管官網(wǎng) 真誠(chéng)推薦河北長(zhǎng)洪管業(yè)供應(yīng)</h1><div id="ihy2oq2" class="proBig"><div id="j2co8zi" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211413845928_jiazong01_8373115.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m2bsw3g" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211413845928_jiazong01_8373115.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8j27wdu" 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>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>廣西鋼管官網(wǎng),鋼管</p><p><span>***更新：</span>2020-06-17 01:14:33</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="s7hovz2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北長(zhǎng)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="lu3qzqc" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="un8dct3" class="box"><p><p> 近年來(lái)，隨著車(chē)輛輕量化發(fā)展要求，局部加厚管這類(lèi)零件需求量也增大，因此管坯鐓壓成形工藝得到發(fā)展。管坯局部鐓粗的零件有以下幾種形式：①管子內(nèi)徑保持不變、外徑加大而加粗管坯；②管子外徑保持不變而內(nèi)徑縮??；③同時(shí)加大外徑縮小內(nèi)徑。不管是哪種形式，管坯鐓粗時(shí)的主要問(wèn)題是防止管壁因縱向彎曲所引起的折紋。通過(guò)長(zhǎng)期生產(chǎn)實(shí)踐經(jīng)驗(yàn)，人們總結(jié)出管坯局部鐓粗時(shí)應(yīng)遵循的工藝原則，即所謂的管坯局部鐓粗規(guī)則。 </p> <p> 概括起來(lái)，主要有兩條：1)當(dāng)管坯變形部分長(zhǎng)度小于管坯壁厚的3倍時(shí)，廣西鋼管官網(wǎng)，允許一次鐓粗到任意外徑而不產(chǎn)生彎曲。2)當(dāng)管坯變形部分長(zhǎng)度大于管坯壁厚的3倍時(shí)（一般是這種鐓粗），廣西鋼管官網(wǎng)，必須在模具中鐓粗，廣西鋼管官網(wǎng)，且一次局部鐓粗所能達(dá)到的比較大厚度不能超過(guò)原始管坯厚度的1.5倍，否則將產(chǎn)生失穩(wěn)變形。廣西鋼管官網(wǎng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西鋼管官網(wǎng),鋼管" src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211413845928_jiazong01_8373115.jpg"></div><p> 上面所述的方法是在施工時(shí)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(shí)(沒(méi)有開(kāi)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(wàn)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。陜西鋼管官網(wǎng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西鋼管官網(wǎng),鋼管" src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211393063880_jiazong01_1037443.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(shí)，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(yíng)理念服務(wù)宗旨為廣大客戶提供質(zhì)優(yōu)價(jià)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(guò)多年的經(jīng)營(yíng)，現(xiàn)已同全國(guó)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(xiāo)售體系。我公司鄭重承諾，在同等的質(zhì)量下，保證的價(jià)格，完善的服務(wù)，崇高的信譽(yù)來(lái)答謝社會(huì)各界朋友的支持和厚愛(ài)，愿與各界朋友真誠(chéng)合作，攜手共進(jìn)，共創(chuàng)偉業(yè)，共鑄輝煌！ </p> <p> <br /> </p><p style="text-indent:25px">加厚管鐓粗不宜同時(shí)擴(kuò)大外徑和縮小內(nèi)徑生產(chǎn)實(shí)踐證明，在管坯局部鐓粗變形過(guò)程中，管壁主要是向外彎曲，向內(nèi)不容易產(chǎn)生彎曲，因此，管坯鐓粗時(shí)要用模具限制管壁向外彎曲，而內(nèi)孔芯軸主要用于使內(nèi)孔獲得一定的孔徑。管坯局部加厚超過(guò)1.5倍時(shí)，不宜采用同時(shí)加大外徑和縮小內(nèi)徑的方法鐓粗成形。因?yàn)檫@時(shí)的變形程度較大，需要聚料較多，管坯鐓粗開(kāi)始時(shí)管坯自由沒(méi)有約束，屬于自由變形，穩(wěn)定性差，容易失穩(wěn)。比較好使外徑保持不變，*縮小內(nèi)徑來(lái)增大管壁厚度，這時(shí)不容易產(chǎn)生折紋。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西鋼管官網(wǎng),鋼管" src="http://tyunfile.71360.com/UpLoadFile/2019/10/16/11/637068211393063880_jiazong01_3785110.jpg"></div><p style="text-indent:25px">跟著石油工業(yè)和輸水輸氣管道工程的飛速開(kāi)展，管子使用日趨廣（guang）泛，觸及管成形的工藝辦法開(kāi)展也很快，如彎管、擴(kuò)管、縮管、翻管、脹管、管部分鐓粗等管成形工藝使用廣（guang）泛。近年來(lái)，跟著車(chē)輛輕量化開(kāi)展要求，部分加厚管這類(lèi)零件需求量也增大，因此管坯鐓壓成形工藝得到開(kāi)展。鋼管部分鐓粗加工時(shí)，有哪些問(wèn)題需要留意：(1)管坯部分鐓粗所能達(dá)到的比較大厚度不能大于原始管坯厚度的1.5倍跟著石油工業(yè)和輸水輸氣管道工程的飛速開(kāi)展，管子使用日趨廣（guang）泛，觸及管成形的工藝辦法開(kāi)展也很快，如彎管、擴(kuò)管、縮管、翻管、脹管、管部分鐓粗等管成形工藝使用廣（guang）泛。廣西鋼管官網(wǎng)</p><p style="text-indent:25px">廣西鋼管官網(wǎng)</p><p style="text-indent:25px">近年來(lái)，隨著五金、工具的類(lèi)型和用途上越來(lái)越多之后，當(dāng)然市場(chǎng)上的品牌競(jìng)爭(zhēng)上也是很激烈的。因此，為了能夠在五金市場(chǎng)上脫穎而出，在營(yíng)銷(xiāo)過(guò)程中還是需要具有一定的特色，這才能夠在銷(xiāo)售階段中占據(jù)優(yōu)勢(shì)，提高了在行業(yè)領(lǐng)域當(dāng)中的性價(jià)比。這樣的五金類(lèi)工具才會(huì)更加**的。經(jīng)過(guò)十多年的快速發(fā)展，中國(guó)的五金工業(yè)已迅速成為世界上比較大的五金制造國(guó)。在五金行業(yè)，品牌意識(shí)得到了增強(qiáng)。打造品牌已成為行業(yè)有限責(zé)任公司企業(yè)發(fā)展的**，打造百年行業(yè)。我國(guó)五金產(chǎn)業(yè)既要發(fā)揮作為傳統(tǒng)產(chǎn)業(yè)的根基優(yōu)勢(shì)，又要不斷推動(dòng)可生產(chǎn)國(guó)標(biāo)、美標(biāo)、日標(biāo)、德標(biāo)，俄標(biāo)等國(guó)際、國(guó)內(nèi)標(biāo)準(zhǔn)的碳鋼、不銹鋼、合金鋼等各種規(guī)格材質(zhì)的法蘭、管件等管道配件產(chǎn)品，擁有先進(jìn)的法蘭管件生產(chǎn)線，中頻推制、機(jī)加工、冷成型、熱擠壓、熱處理等精湛工藝。并與國(guó)內(nèi)各大鋼廠保持長(zhǎng)期穩(wěn)定的合作關(guān)系，常年代理天津無(wú)縫鋼管廠、包鋼、寶鋼等幾大鋼廠所產(chǎn)的無(wú)縫鋼管。產(chǎn)業(yè)結(jié)構(gòu)升級(jí)，提高**產(chǎn)品市場(chǎng)競(jìng)爭(zhēng)力，早日實(shí)現(xiàn)由勞動(dòng)力密集型向技術(shù)密集型產(chǎn)業(yè)的轉(zhuǎn)型，縮短與國(guó)際五金行業(yè)先進(jìn)水平的差距。在五金工具銷(xiāo)售企業(yè)的品牌定位中，首先要確定目標(biāo)市場(chǎng)，然后與競(jìng)爭(zhēng)對(duì)手進(jìn)行比較，找到自己的優(yōu)勢(shì)，將市場(chǎng)需求與企業(yè)優(yōu)勢(shì)相結(jié)合，形成品牌的**價(jià)值，然后再做好品牌定位！廣西鋼管官網(wǎng)</p><p style="text-indent:25px">河北長(zhǎng)洪管業(yè)有限公司是一家可生產(chǎn)國(guó)標(biāo)、美標(biāo)、日標(biāo)、德標(biāo)，俄標(biāo)等國(guó)際、國(guó)內(nèi)標(biāo)準(zhǔn)的碳鋼、不銹鋼、合金鋼等各種規(guī)格材質(zhì)的法蘭、管件等管道配件產(chǎn)品，擁有先進(jìn)的法蘭管件生產(chǎn)線，中頻推制、機(jī)加工、冷成型、熱擠壓、熱處理等精湛工藝。并與國(guó)內(nèi)各大鋼廠保持長(zhǎng)期穩(wěn)定的合作關(guān)系，常年代理天津無(wú)縫鋼管廠、包鋼、寶鋼等幾大鋼廠所產(chǎn)的無(wú)縫鋼管。的公司，創(chuàng)建于2015-11-11。長(zhǎng)洪管業(yè)供應(yīng)作為可生產(chǎn)國(guó)標(biāo)、美標(biāo)、日標(biāo)、德標(biāo)，俄標(biāo)等國(guó)際、國(guó)內(nèi)標(biāo)準(zhǔn)的碳鋼、不銹鋼、合金鋼等各種規(guī)格材質(zhì)的法蘭、管件等管道配件產(chǎn)品，擁有先進(jìn)的法蘭管件生產(chǎn)線，中頻推制、機(jī)加工、冷成型、熱擠壓、熱處理等精湛工藝。并與國(guó)內(nèi)各大鋼廠保持長(zhǎng)期穩(wěn)定的合作關(guān)系，常年代理天津無(wú)縫鋼管廠、包鋼、寶鋼等幾大鋼廠所產(chǎn)的無(wú)縫鋼管。的品牌企業(yè)，為客戶提供質(zhì)量的[ "帶頸對(duì)焊法蘭", "長(zhǎng)半徑彎頭", "變徑三通", "法蘭蓋" ]。公司擁有多年的行業(yè)經(jīng)驗(yàn)，每年以銷(xiāo)售收入達(dá)到50-100萬(wàn)元，如果您想了解更多產(chǎn)品信息，請(qǐng)通過(guò)頁(yè)面上的電話聯(lián)系我們。長(zhǎng)洪管業(yè)供應(yīng)創(chuàng)始人吳洪虎，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠(chéng)為客戶提供比較好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: 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