上海水泥罐車封頭廠家無(wú)錫國(guó)鑫封頭供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(gè)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"><meta name="keywords" content="上海水泥罐車封頭廠家,封頭"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" 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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="h8wg87v" class="twoCol"><div id="wkhzbiy" 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_fengtou/">封頭</a>?上海水泥罐車封頭廠家無(wú)錫國(guó)鑫封頭供應(yīng)</p><div id="wqnpmj3" class="leftbox clearfix"><h1>上海水泥罐車封頭廠家無(wú)錫國(guó)鑫封頭供應(yīng)</h1><div id="3bdvn7j" class="proBig"><div id="zy8vuwt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178497552657/309419.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xbtacjl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178497552657/309419.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ztgi2rv" 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>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>上海水泥罐車封頭廠家,封頭</p><p><span>***更新：</span>2020-12-11 13:38:05</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="po7prt2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫國(guó)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(jī): </span>0510-83897088</p><p><span>地址: </span>玉祁街道曙光村</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="mvnkxeb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="r2wy7jl" class="box"><p><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(gè)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(hù)不當(dāng)會(huì)引起表面點(diǎn)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(duì)于承接容器部件有比較重要的作用，封頭無(wú)論在選材還是制造技術(shù)是比較嚴(yán)格的，只有達(dá)到的要求才能運(yùn)用到工作的實(shí)踐中。1、封頭使用條件比較苛刻，上海水泥罐車封頭廠家。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(dòng)載荷)和其他載荷，而且有的還是在高溫或深冷的條件下運(yùn)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(fù)荷。容器內(nèi)的壓力常常會(huì)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(huì)降低，上海水泥罐車封頭廠家，從而影響工作的進(jìn)程，耽誤工作的進(jìn)度。因此制造的封頭，上海水泥罐車封頭廠家，提高封頭的承載力。球形的封頭為半個(gè)球殼。上海水泥罐車封頭廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海水泥罐車封頭廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178497552657/309419.png"></div><p style="text-indent:25px">封頭不可以因?yàn)槌霈F(xiàn)溫差而導(dǎo)致封頭的體積出現(xiàn)膨脹或者是收縮，這都是因?yàn)闇夭疃a(chǎn)生的熱應(yīng)力，較終會(huì)導(dǎo)致工件的表面受到壓力而拉傷。在進(jìn)行環(huán)縫處理的時(shí)候，焊縫的兩側(cè)在加熱的寬度上都不能小于整個(gè)壁厚的兩倍。如果只局部加熱的話，較好是可以采用火焰的噴燒或者是其他的形式。正常情況下熱處理的溫度較好是可以控制在620℃±10，而爐內(nèi)的工件溫差也不能大于65℃。在整個(gè)保溫結(jié)束之后，可以隨著爐子慢慢的將溫度降低到00℃以下，之后才可以將工件出爐進(jìn)行冷卻。安徽臥式儲(chǔ)罐封頭加工廠封頭的制作、查驗(yàn)與查驗(yàn)除應(yīng)契合本規(guī)范規(guī)則外，還應(yīng)契合圖樣或訂貨技能協(xié)議需求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海水泥罐車封頭廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179041563010/3671152.png"></div><p style="text-indent:25px">到了寒冷的冬天，如何做好封頭產(chǎn)品的保存就成為了一個(gè)比較重要的問(wèn)題。這是因?yàn)樵谶@樣的天氣條件下，如果保存不當(dāng)，有可能會(huì)影響到封頭的質(zhì)量，導(dǎo)致使用性能下降。那么，究竟該如何來(lái)進(jìn)行保存呢？封頭廠的我來(lái)為大家介紹一下關(guān)于封頭的冬季存放問(wèn)題。首先，如果產(chǎn)品表面有漂白劑或者是酸性物質(zhì)附著的話，那么應(yīng)當(dāng)立即用清水沖洗干凈。之后再使用氨溶液或者是中性碳酸蘇打水溶液浸洗，好再使用中性洗滌劑或者是溫水沖洗干凈。如果封頭表面積存有一部分的灰塵，或者是一些比較容易去除的污物，那么可以使用肥皂，弱洗滌劑或者是溫水將其清洗干凈即可。總之，在長(zhǎng)時(shí)間存放的過(guò)程中，應(yīng)當(dāng)注意保持其表面的清潔。其次，在存放的時(shí)候，應(yīng)當(dāng)選擇比較干燥且通風(fēng)條件比較好的環(huán)境，同時(shí)還要注意到溫濕度的問(wèn)題。切記，不可以直接將封頭產(chǎn)品直接暴漏在溫濕度比較高的密閉空間中，而且不得和酸、堿、鹽類物質(zhì)存放在一起。當(dāng)將其和筒體組焊之后，還需要及時(shí)將焊縫及熱影響區(qū)以及周圍的焊渣、飛濺、污染物等清理干凈。</p><p style="text-indent:25px">那么，封頭具體的酸洗步驟該如何進(jìn)行呢？在酸洗操作過(guò)程中，具體的檢驗(yàn)標(biāo)準(zhǔn)又是什么呢？接下來(lái)我們來(lái)了解一下具體的酸洗操作步驟：1、先根據(jù)待處理的封頭產(chǎn)品情況，確定具體的工藝流程；2、工作時(shí)，戴好勞保物品，將酸液均勻涂滿產(chǎn)品的外表面，進(jìn)行初步清洗；3、結(jié)束后，大量使用大量清水進(jìn)行沖洗。在表面形成一層鈍化膜；4、檢查污物是否處理干凈，凡是不符合要求的產(chǎn)品，要及時(shí)進(jìn)行返工。酸洗作業(yè)的具體參照標(biāo)準(zhǔn)：工作人員首先是參照工藝卡內(nèi)容，和實(shí)物對(duì)照確認(rèn)封頭產(chǎn)品的具體材質(zhì)，數(shù)量，爐批號(hào)，指令號(hào)，單件號(hào)，檢查有無(wú)鼓包，裂紋等缺陷；封頭用于閥門兩端壓差大的工作場(chǎng)景。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海水泥罐車封頭廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178585374457/2979121.png"></div><p style="text-indent:25px">影響封頭較小厚度的因素有哪些？1、剛度的影響：封頭在承受壓力的同時(shí)本身應(yīng)具備一定的剛度，以免發(fā)生變形破壞。因此，GB150規(guī)定，對(duì)碳素鋼、低合金鋼制容器不包括腐蝕裕量的較小厚度應(yīng)不小于3mm；對(duì)高合金鋼制容器不包括腐蝕裕量的較小厚度不小于2mm。2、壓力載荷的影響：封頭是承受一定壓力的受壓元件，首先必須滿足的條件是壓力載荷，無(wú)論承受內(nèi)壓或者外壓載荷的封頭都可通過(guò)GB150第3章有關(guān)計(jì)算公式得到封頭計(jì)算厚度，其中，計(jì)算厚度+腐蝕裕量=設(shè)計(jì)厚度，這個(gè)設(shè)計(jì)厚度是單從壓力載荷方面得到的封頭需要的較小厚度。3、內(nèi)壓失穩(wěn)的影響：內(nèi)壓作用下，標(biāo)準(zhǔn)橢圓封頭的應(yīng)力分布如圖1。由應(yīng)力分布圖可以看出，在封頭底邊處產(chǎn)生周向壓縮應(yīng)力，此處封頭容易發(fā)生周向失穩(wěn)。為防止橢圓封頭在內(nèi)壓作用下失穩(wěn)，GB150規(guī)定，對(duì)于Di/2hi≤2的橢圓形封頭的有效厚度應(yīng)不小于封頭內(nèi)直徑的0.15%，對(duì)于Di/2hi＞2的橢圓形封頭的有效厚度應(yīng)不小于封頭內(nèi)直徑的0.30%。上述雖然限制的是有效厚度，但其實(shí)也間接限制了封頭成形的較小厚度。近年來(lái)由于采用旋壓制造工藝，為制造大直徑橢圓形封頭帶來(lái)了方便。上海橢圓封頭生產(chǎn)廠家電話</p><p style="text-indent:25px">封頭是壓力容器上的端蓋，是壓力容器的一個(gè)主要承壓部件。上海水泥罐車封頭廠家</p><p style="text-indent:25px">封頭在加工時(shí)有許多工序可直接影響到封頭的的質(zhì)量好壞，那么在封頭加工的時(shí)候到底有哪些要求我們?nèi)プ⒁獾哪?1、外圓周長(zhǎng)：在封頭端部直邊部分測(cè)量2、內(nèi)直徑差：在封頭端部直邊部分測(cè)量4點(diǎn)以上任意位置的內(nèi)直徑，取其中直徑的差值。3、封頭總深度：在封頭端面任意兩個(gè)直徑位置上放直尺或拉緊鋼絲，在封頭中心垂直測(cè)量封頭總深度。4、直邊高度：在封頭直邊部位用鋼角尺和鋼直尺測(cè)量，5、直邊傾斜度：在封頭端面直徑部位上拉一鋼絲或放置直尺，用直角尺一邊與拉緊的鋼絲或直尺重臺(tái)，另一邊與封頭接觸，在直邊部位測(cè)量直角尺與封頭的距離。7、厚度：采用超聲波測(cè)厚儀測(cè)定，測(cè)點(diǎn)應(yīng)均勻分布且不小于12個(gè)，主要檢查過(guò)渡區(qū)部分及修磨處上海水泥罐車封頭廠家</p><p style="text-indent:25px">無(wú)錫國(guó)鑫封頭制造有限公司是一家主營(yíng)封頭、橢圓封頭、碟形封頭、球冠封頭、半球封頭、錐形封頭、爐臺(tái)殼體、平底封頭、攪拌車封頭、**車封頭、SF/SS 雙層油罐封頭、方圓封頭、鴨蛋封頭及雙相鋼、鋁鎂合金、鈦合金等特種材料封頭。主要運(yùn)用于壓力容器設(shè)備、制藥設(shè)備、環(huán)保設(shè)備、罐體運(yùn)輸車輛等行業(yè)的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。國(guó)鑫封頭深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的封頭，不銹鋼封頭，碳鋼封頭，鋁封頭。國(guó)鑫封頭致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來(lái)良好體驗(yàn)。國(guó)鑫封頭創(chuàng)始人魏國(guó)中，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: 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