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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="j7xntjb" class="twoCol"><div id="rdjhv9z" class="page-proshow clearfix"><p class="current"> 當前位置:<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_fengtou/">封頭</a>?上海換熱設(shè)備封頭報價無錫國鑫封頭供應(yīng)</p><div id="9fjhxvj" class="leftbox clearfix"><h1>上海換熱設(shè)備封頭報價無錫國鑫封頭供應(yīng)</h1><div id="vpfdlzp" class="proBig"><div id="zxvtz9f" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178480785204/2623291.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dbzpv7r" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178480785204/2623291.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dhx7jzf" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海換熱設(shè)備封頭報價,封頭</p><p><span>***更新：</span>2020-11-28 01:19:29</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="l77zlz9" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫國鑫封頭制造有限公司</a></p><p><span>聯(lián)系人：</span>魏峰潔</p><p><span>郵箱: </span>239703@qq.com</p><p><span>電話: </span>13861726550</p><p><span>傳真: </span>0510_83898088</p><p><span>網(wǎng)址: </span>http://www.wxgxft.com</p><p><span>手機: </span>0510-83897088</p><p><span>地址: </span>玉祁街道曙光村</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="p777znt" class="page-proshow02"><p class="title">詳細說明</p><div id="7l7tr5f" class="box"><p><p style="text-indent:25px">在現(xiàn)代城市的建設(shè)過程中高壓鍋、大型熱加設(shè)備、石油儲蓄罐等帶有管道的器材在實際應(yīng)用過程中，就會涉及到截斷面封口問題，這樣封頭就誕生了。它就是在封口器材的基礎(chǔ)上經(jīng)過無數(shù)人的努力，經(jīng)過封頭廠專業(yè)的改造而出現(xiàn)的?，F(xiàn)在出現(xiàn)的產(chǎn)品的原材料的選擇上有了比較大的改變，不同于以往選用鋼鐵材料，而是選用新型的耐高壓高熱，抗壓能力強的原料。它具有以往的材料都不具有的優(yōu)點，能適用在各個地方，并且使用年限長，質(zhì)量過硬，不存在維修問題。封頭功能越來越多樣化，上海換熱設(shè)備封頭報價，使得它的發(fā)展也是越來越壯大，在各大機械行業(yè)中頻繁使用到的封口材料，上海換熱設(shè)備封頭報價，上海換熱設(shè)備封頭報價。它的功能得到了比較大的提升，在抗壓能力上它的性能優(yōu)良比較大程度的改變，密封性也比原來更加優(yōu)良。封頭在工業(yè)中占有極其重要的地位。上海換熱設(shè)備封頭報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海換熱設(shè)備封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178480785204/2623291.png"></div><p style="text-indent:25px">在實際應(yīng)用中，封頭產(chǎn)品具有良好的使用效果。對于很多行業(yè)來說，比如石油化工、原子能、食品行業(yè)、及制藥行業(yè)等行業(yè)中，封頭都屬于一款不可或缺的重要部件，其主要是使用在壓力容器上。接下來我們就針對這方面的內(nèi)容為大家做個簡單的介紹，希望能夠幫助到大家。首先在實際應(yīng)用中，封頭產(chǎn)品主要是使用在壓力容器的上端蓋上，是壓力容器中一個非常重要的部分，也是起到密封作用。通常情況下，在使用封頭這一產(chǎn)品的時候，并不是單一使用，而往往需要和配套的管件進行使用。南通儲氣罐封頭生產(chǎn)廠家直銷現(xiàn)在在市面上銷售的封頭大多都有防腐蝕、抗壓能力強、承重量大、密封性能好等特點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海換熱設(shè)備封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177816365410/2698061.png"></div><p style="text-indent:25px">在使用狀態(tài)下的壓力容器產(chǎn)生的主要應(yīng)力有：容器內(nèi)的壓力產(chǎn)生的應(yīng)力；焊接殘余應(yīng)力；由于不銹鋼封頭成形加工產(chǎn)生的殘余應(yīng)力。三個應(yīng)力的疊加，使不銹鋼封頭與筒體連接的環(huán)焊縫部分存在的拉伸應(yīng)力大。所以不銹鋼封頭與筒體連接的環(huán)焊縫兩側(cè)易產(chǎn)生應(yīng)力腐蝕。而表面的劃痕，焊渣，飛濺，表面清洗不，采用含氯離子的保溫材料等因表面防護不當會引起表面點腐蝕并誘發(fā)應(yīng)力腐蝕。封頭是壓力容器的重要受力部件，對于承接容器部件有比較重要的作用，封頭無論在選材還是制造技術(shù)是比較嚴格的，只有達到的要求才能運用到工作的實踐中。1、封頭使用條件比較苛刻。封頭不但承受著大小不同的壓力載荷(在一般情況下還是脈動載荷)和其他載荷，而且有的還是在高溫或深冷的條件下運行，工作介質(zhì)又往往具有腐蝕性，工況環(huán)境比較惡劣。2、封頭容易超負荷。容器內(nèi)的壓力常常會因操作失誤或發(fā)生異常反應(yīng)而迅速升高，而且往往在尚未發(fā)現(xiàn)的情況下，容器即已破裂。破裂后容器的可能力就會降低，從而影響工作的進程，耽誤工作的進度。因此制造的封頭，提高封頭的承載力。</p><p style="text-indent:25px">壓力封頭有什么特點你知道嗎？其一、使用上有優(yōu)良的硬度，要知道我們使用上較關(guān)鍵的就是硬度問題，這種硬度使用上也是我們較關(guān)注的問題，因為這種硬度上一方面也反映了整體的承壓能力，雖然承壓能力上有比較多方面，就連封頭材料的彈性都可以算作其中的因素之一。硬度雖然有一定影響，但是不是主要影響，所以這方面一定要注意，不能只看硬度。不過話說回來，硬度上也會影響比較多方面的影響維持設(shè)備壓力的穩(wěn)定性能，所以也不能不看硬度。其二、封頭本身有著良好的屋里結(jié)構(gòu)，使用上比較多半圓形的封頭抗壓能力上也會更好一些，承受壓力能力也會好比較多，這點上上也是為什么封頭使用上物理性能和結(jié)構(gòu)非常優(yōu)良的原因所在。加上市場對封頭的需求上是剛需，雖然處于低迷期，不過后續(xù)需求增大，封頭的市場也會成為朝陽，而且封頭的質(zhì)量上也會有明顯的提升。封頭一般是采用厚板沖壓成形，由于材料在成形過程中各部分的應(yīng)力應(yīng)變狀態(tài)不同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海換熱設(shè)備封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179532595219/4377952.png"></div><p style="text-indent:25px">封頭拋光時有哪些要求？在鍋爐和一些壓力容器上，為了保證工作的密封性，通常需要封頭進行堵塞，而對于封頭來說，為了讓其與安裝的部件相一致，所以有時會需要做一些拋光處理。在拋光時對封頭的形狀也是有要求的，如不銹鋼橢圓形封頭、蝶形封頭、錐形封頭等可進行內(nèi)外拋光，效果非常好。那么封頭拋光的要求有哪些呢，下面就一起來了解下。封頭拋光通常會用專門的拋光機，這些拋光機的自動化設(shè)計非常高，在進行工作的時候，只要把拋光的工件等放在相應(yīng)的位置上，然后在工作臺上作固定處理，就可以開始進行拋光了。當然拋光的時間需要做下合理的設(shè)定，這樣工作就會變得更簡單。需要注意的是，封頭拋光分為精拋和細拋兩種方式，做粗拋處理的封頭可以所表層的損傷及時去除，拋光速率會比較高；而使用精拋技術(shù)的封頭，不僅能去掉封頭表層的損傷，還能讓拋光損傷減少到較低。它具有以往的材料都不具有的優(yōu)點，能適用在各個地方，并且使用年限長，質(zhì)量過硬，不存在維修問題。封頭功能越來越多樣化，使得它的發(fā)展也是越來越壯大，在各大機械行業(yè)中頻繁使用到的封口材料。它的功能得到了比較大的提升，在抗壓能力上它的性能優(yōu)良比較大程度的改變，密封性也比原來更加優(yōu)良。封頭填料的各部位以及接觸的各部位需要精加工。江蘇平底封頭生產(chǎn)廠家</p><p style="text-indent:25px">封頭在選擇時要選擇大廠家，質(zhì)量是比較有保證的。上海換熱設(shè)備封頭報價</p><p style="text-indent:25px">不銹鋼封頭在加熱和冷卻過程中，不銹鋼封頭由于表層和心部的冷卻速度和時間的不一致，形成溫差，就會導(dǎo)致體積膨脹和收縮不均而產(chǎn)生應(yīng)力，即熱應(yīng)力。在熱應(yīng)力的作用下，由于表層開始溫度低于心部，收縮也大于心部而使心部受拉，當冷卻結(jié)束時，由于心部末尾冷卻體積收縮不能自由進行而使表層受壓心部受拉。即在熱應(yīng)力的作用下較終使工件表層受壓而心部受拉。這種現(xiàn)象受到冷卻速度，材料成分和熱處理工藝等因素的影響。當冷卻速度愈快，含碳量和合金成分愈高，冷卻過程中在熱應(yīng)力作用下產(chǎn)生的不均勻塑性變形愈大，末尾形成的殘余應(yīng)力就愈大。上海換熱設(shè)備封頭報價</p><p style="text-indent:25px">無錫國鑫封頭制造有限公司致力于機械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司業(yè)務(wù)分為封頭，不銹鋼封頭，碳鋼封頭，鋁封頭等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機械及行業(yè)設(shè)備良好品牌。國鑫封頭憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2171013.html</p></div></div></div></div></div><div id="7vjzxdb" class="page-right twoColRt"><div id="tpftrxf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dtbzhnl" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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