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href="http://www.cdcfah.com/cp/third-guanjianbi_fengtou/">封頭</a>?南京催化劑罐封頭報價無錫國鑫封頭供應</p><div id="bujzp2b" class="leftbox clearfix"><h1>南京催化劑罐封頭報價無錫國鑫封頭供應</h1><div id="sawnhyj" class="proBig"><div id="3vpgq78" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178907884130/2465970.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cpppjep" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178907884130/2465970.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="twbbb3k" 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>南京催化劑罐封頭報價,封頭</p><p><span>***更新：</span>2020-12-01 11:34:38</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="qj8d28m" 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="eacy393" class="page-proshow02"><p class="title">詳細說明</p><div id="xar3xmc" class="box"><p><p style="text-indent:25px">封頭等到冷卻結束之后，心部的冷卻體積也不能進行自由的收縮，會讓材料和熱處理工藝受到影響。如果冷度速度快，那么相對的碳含量和合金量也越高，南京催化劑罐封頭報價，南京催化劑罐封頭報價，南京催化劑罐封頭報價，在進行冷卻的時候存在不均勻塑形的幾率越高，會形成殘余應力的可能性也越大。其實封頭的變大都表現(xiàn)在表層的受應拉力、心部受壓應力，這都和熱應力是相反的，所以說應力的大小和冷卻速度、形狀、材料的化學成分有關。封頭是安裝在一定體積的容器上的時候，要求其盡可能的起到密封的效果。球形封頭和筒體采用同樣薄厚還有益于降低鑄造缺陷、提升電焊焊接品質，也相對減少器皿制造成本。南京催化劑罐封頭報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京催化劑罐封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178907884130/2465970.png"></div><p style="text-indent:25px">封頭是石油化工、原子能到食品制藥諸多行業(yè)壓力容器設備中不可缺少的重要部件。封頭是壓力容器上的端蓋，是壓力容器的一個主要承壓部件。所起的作用是密封作用。一是做成了罐形壓力容器的上下底，二是管道到頭了，不準備再向前延伸了，那就用一個封頭在把管子用焊接的形式密封住。和封頭的作用差不多的的產品有盲板和管帽，不過那兩種產品是可以拆卸的。而封頭焊好了之后是不可以再拆卸的。與之配套的管件有壓力容器、管道、法蘭盤、彎頭、三通、四通等產品。封頭的品質直接關系到壓力容器的長期安全可靠運行。根據(jù)幾何形狀的不同，可分為球形、橢圓形、碟形、球冠形、錐殼和平蓋等幾種，其中球形、橢圓形、碟形、球冠型封頭又統(tǒng)稱為凸形封頭。在焊接上分為對焊封頭，承插焊封頭。用于各種容器設備，如儲罐、換熱器、塔、反應釜、鍋爐和分離設備等。常州原水處理設備封頭生產廠家電話盲板在選用上,對厚度的要求也要注意,眾所周知,封頭是用中板做的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京催化劑罐封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177816365410/2698061.png"></div><p style="text-indent:25px">工作人員穿戴好勞保用品，配置好封頭酸洗液，將配制好的酸洗液均勻的涂在產品表面；切記，酸洗過程中不得有明顯的腐蝕痕跡；第四，氧化皮徹底去除，焊縫熱影響區(qū)域及熱加工封頭表面不得有氧化色。同時還要注意，在加工封頭產品的時候，其焊縫中的飛濺物以及熔渣等雜質必須要徹底去除干凈；同時在產品表面不得有顏色不均勻的痕跡，表面不得有碳鋼的微粒，碳鋼銹色。較后所得到的鈍化膜應較為均勻統(tǒng)一。需要注意的是，在對封頭產品進行熱處理的過程中，其表面可能會產生一層黑色的氧化層。</p><p style="text-indent:25px">封頭加熱溫度一般不宜超過420度，當式件溫度降至300度以下時，不適宜繼續(xù)熱成形。鈦封頭應該盡量采用熱成形，如成型溫度約為300度－400度。高溫熱成形時工件加熱溫度可以提高到大約650度，但不應該超過800度。冷成形后的熱校形溫度為100－350度。不銹鋼封頭的厚度愈大，隨著產品形狀變量的增多，強度和抗拉強度增卓著進步，硬度值增加，耐塑性下降，產生了卓著的加工硬化現(xiàn)象。不銹鋼封頭對金屬坯料施加外力，使其產生塑性變形、改變尺寸、外形及改善機能。封頭施工、安裝要點：安裝位置、高度、進出口方向有必要契合規(guī)劃要求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京催化劑罐封頭報價,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178640950369/9635590.png"></div><p style="text-indent:25px">封頭淬火時，用天車平穩(wěn)吊起料盤浸入水中。第二種就是焊吊鉤淬火方式。在采用此方式時，需要提前在不銹鋼封頭產品的開口端每隔90°均勻焊接四個相同的吊鉤，淬火時用四個吊鉤同時將鍛件吊起，這樣可以在一定程度上防止封頭過度變形，能夠更加平穩(wěn)的將封頭浸入水中[5]，但是淬火時封頭內會有積水。還有一種叫做**料圈淬火方式進行淬火。事實上，該方式和一種方式較為接近，由于料盤的制造相對要復雜費工，可以將其簡化為料圈形式，省時且節(jié)約成本。封頭在選擇時要選擇大廠家，質量是比較有保證的。無錫制藥設備封頭廠家</p><p style="text-indent:25px">封頭可以克服閥桿的摩擦力，去除不平衡的影響。南京催化劑罐封頭報價</p><p style="text-indent:25px">越大型號的封頭使用過程中會相對的問題較多，我們來看看封頭的使用要注意一些什么?1、封頭的形狀：根據(jù)設備的需求與合理，選擇合適的封頭種類：如橢圓形、蝶形、錐形、球形等；2、封頭的尺寸：是指的內徑還是外徑。如377、426是以外徑為準；350、400、450是以內徑為準；3、封頭的高度：一般封頭的高度我們都是按照國家標準來生產，但是也有客戶的產品設計不一樣，需要的封頭高度不同，所以有特殊要求定貨雙方要協(xié)商一致；4、封頭的材質：一般使用較多的是304不銹鋼和碳鋼兩種，但是也有特殊用途的，如耐高溫必須用310S材質、耐酸性一定要使用316L材質等；5、封頭的周長：封頭是用模具沖壓成形，鋼板在沖壓過種中會有一些應力存在，而且沖壓拉伸過程中會有相對變形，那么封頭的直徑要如何判斷準確與否，就看周長多少，是否標準；6、封頭與筒體焊接：封頭與筒體對焊的時候，一定是先將封頭與筒體用幾個點平均固定，再均勻的進行焊接處理。南京催化劑罐封頭報價</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)。國鑫封頭深耕行業(yè)多年，始終以客戶的需求為向導，為客戶提供***的封頭，不銹鋼封頭，碳鋼封頭，鋁封頭。國鑫封頭不斷開拓創(chuàng)新，追求出色，以技術為先導，以產品為平臺，以應用為重點，以服務為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務。國鑫封頭始終關注自身，在風云變化的時代，對自身的建設毫不懈怠，高度的專注與執(zhí)著使國鑫封頭在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2222693.html</p></div></div></div></div></div><div id="8hitr7t" class="page-right twoColRt"><div id="3awgrzf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="38wpfkk" 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 id="gaqq7kh" class="recomPic likePro"><a 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