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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178607835180/7544894.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aiaryst" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178607835180/7544894.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3so2jvc" 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>產品關鍵詞：</span>無錫SF雙層油罐封頭加工,封頭</p><p><span>***更新：</span>2021-01-24 11:25:31</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="ixzgxja" 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="qzvmiub" class="page-proshow02"><p class="title">詳細說明</p><div id="lfhea24" class="box"><p><p style="text-indent:25px">拼接焊縫的質量，必須要滿足一定的要求，才能夠確保后期安全使用。大家應當知道，在當前的封頭市面中，由于鋼板原材料的尺寸一般是1500寬，因而當其尺寸較大的情況就選需要進行拼接處理。那么橢圓封頭在進行拼接的時候，你知道應當滿足哪些要求嗎？針對于這一問題，首先橢圓封頭拼接的距離需要滿足一定的要求，無錫SF雙層油罐封頭加工。這是因為焊接熱影響區(qū)是個高應力區(qū)，并且在該區(qū)的化學成分會有燒損，拼接時焊縫方向要求只允許是徑向和環(huán)向，無錫SF雙層油罐封頭加工。兩塊板材拼接時，兩端端口采用倒角傾斜，使兩塊板更加容易焊透，無錫SF雙層油罐封頭加工。封頭的填料在選用方面，需要選用柔性石墨，因其具有氣密性好。無錫SF雙層油罐封頭加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫SF雙層油罐封頭加工,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178607835180/7544894.png"></div><p style="text-indent:25px">封頭產品通常是以開口朝上的入水方式淬火。上封頭、底封頭等一般為厚度均勻、形狀規(guī)則的球冠形狀，并且球形表面為封閉結構。在進行淬火的時候，首先可以采用**料盤淬火方式。此時在對不銹鋼封頭進行淬火的過程中，需要提前設計一個專門的淬火料盤，料盤中間根據(jù)封頭尺寸設計一個合理大小直徑的透孔，淬火加熱以及入水時將封頭開口朝上坐于透孔上，透孔大小保證封頭底面不超出料盤底面，為保證熱均勻以及隨后淬火的冷卻效率，料盤的其它部位合理的開一定大小的透孔。無錫SF雙層油罐封頭加工封頭初度運轉時，要供認電動機滾動的方向是不是精確。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫SF雙層油罐封頭加工,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177834666126/7478975.png"></div><p style="text-indent:25px">封頭根據(jù)實踐經驗，應力衰減長度為大于3δ，且不小于100mm但制冷設備很難達到這一要求，有其特殊性。拼接封頭的焊接接頭系數(shù)先拼接后成型的封頭，拼接焊縫應進行射線或超聲波檢測，合格級別隨設備殼體走。封頭廠較后成型的焊縫檢測級別、比例與設備殼體相同，高了浪費。舉例：假如設備殼體是20%檢測，III合格。那封頭拼接焊縫和較后焊縫也是III合格，焊接接頭系數(shù)為0.85封頭廠假如設備殼體是檢測，II合格。那封頭拼接焊縫和較后焊縫也是II合格，焊接接頭系數(shù)為1。</p><p style="text-indent:25px">封頭是壓力容器上使用的堵塞裝置，對密封性有非常嚴格的要求。因為密封性會關系到壓力容器的使用，嚴重時甚至會出現(xiàn)工作事故，因此，密封性必須要十分注意。我們知道，為了讓封頭具有更好的密封性，通常封頭在制作完成后，會對其進行平口處理，使其與壓力容器可以更好的銜接在一起。那么，封頭的平口應該如何處理？不論瓜瓣封頭還是整體封頭,不論沖壓封頭還是旋壓封頭,不論標準橢圓封頭還是球形封頭或碟形封頭,成型后都較原設計高出一個值,這個值就是修切余量,以備車削或割掉。應根據(jù)封頭規(guī)格和本單位設備情況決定平口方法,若不能在立車床上平口時,則考慮用氣割或等離子切割方法平口。這里介紹的是用氣割(或等離子切割)進行平口的方法。在現(xiàn)實的生活之中比較多的封頭都是使用在高壓容器之上的，這種高壓容器是一種能在內部產生極大壓強的器件，如果我們不對于這種容器進行密封的話，那么其中的壓力能量是不穩(wěn)定的。在封頭的平口工作中，需要根據(jù)具體制造工藝選擇坡口形式，外坡還是內坡，坡角度這些都是有要求的。封頭的使用方式很簡單，不需要進行過多的培訓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫SF雙層油罐封頭加工,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178593831455/1545798.png"></div><p style="text-indent:25px">封頭在加工時有許多工序可直接影響到封頭的的質量好壞，那么在封頭加工的時候到底有哪些要求我們去注意的呢?1、為了避免薄封頭拉伸時起皺和鼓包，可先將毛坯初次予壓成拱形。S/Di=0.6~2%時，壓凸R≈0.8~0.9Di.對于直徑大而壁薄的封頭，可分2~3次壓凸，由淺至深的壓至規(guī)定的R值。2、拼接的毛坯料的焊接接頭余高須全部打磨至與母材平齊后才可以進行壓制。當板料拼接時，其外面一條焊縫距板中心距離應小于0.25Di且小板寬不得小于300mm.(Di--封頭內直徑)3、拼接的毛坯板料壓凸后，需用放大鏡嚴格檢查是否有裂紋，當有懷疑時，可作表面探傷檢查。4、拼接的毛坯板料壓凸時，焊接接頭處產生裂紋時，應把裂紋清理掉，按工藝要求做焊補與探傷。封頭檢驗檢測標準：1、檢驗用量具：檢驗用鋼直尺、銅卷尺應分別符合JJG1和JJG4的規(guī)定。直角尺和角規(guī)或其它量具應符合有關標準或技術文件的規(guī)定。封頭能夠增大調節(jié)閥的輸出效率，減少滯后的情況發(fā)生。上海環(huán)保設備封頭制作廠</p><p style="text-indent:25px">五金封頭零件的外表粗糙度也應當依據(jù)合作外表的實際需要，作出恰當?shù)囊?guī)則。無錫SF雙層油罐封頭加工</p><p style="text-indent:25px">在現(xiàn)行各種封頭中，標準橢圓封頭以其制造加工容易，應力分布狀況理想以及節(jié)省材料等優(yōu)點而被普遍使用。封頭拼接焊縫屬A類，從橢圓封頭的制造來看，一般是先拼接后壓制成型。在壓制過程中，內部缺陷可能會延伸，同時又可能產生新缺陷。因此，探傷實際的選擇顯得非常重要。有明確規(guī)定說：成型后的封頭應在形狀檢查合格后再進行無損探傷。由于壓制成型后的焊縫形狀復雜，如果透明方法選擇不當，容易造成漏檢。通常采用定向曝光機可獲得質量較高的檢測結果，但此法工作效率低、勞動強度大。凡冷成形加工都會產生一定的殘余應力和冷作強化，封頭也不例外。如遇上容器的安裝應力、焊接殘余應力、熱應力時，將產生應力疊加，如果使用在有應力腐蝕的環(huán)境時，在短時間內有可能會產生應力腐蝕裂紋。無錫SF雙層油罐封頭加工</p><p style="text-indent:25px">無錫國鑫封頭制造有限公司是一家主營封頭、橢圓封頭、碟形封頭、球冠封頭、半球封頭、錐形封頭、爐臺殼體、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。主要運用于壓力容器設備、制藥設備、環(huán)保設備、罐體運輸車輛等行業(yè)的公司，致力于發(fā)展為創(chuàng)新務實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于封頭，不銹鋼封頭，碳鋼封頭，鋁封頭，是機械及行業(yè)設備的主力軍。國鑫封頭繼續(xù)堅定不移地走高質量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關鍵領域，實現(xiàn)轉型再突破。國鑫封頭始終關注機械及行業(yè)設備市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2990768.html</p></div></div></div></div></div><div id="h2kcj84" class="page-right twoColRt"><div id="dws7ctq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t3lxevm" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div 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