江蘇印染機(jī)械封頭廠商無錫國鑫封頭供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(shè)備的需求與合理，選擇合適的封頭種類：如橢圓形、蝶形，江蘇印染機(jī)械封頭廠商、錐形、球形等；2、封頭的尺寸：是指的內(nèi)徑還是外徑。如377，江蘇印"><meta name="keywords" content="江蘇印染機(jī)械封頭廠商,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" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-guanjianbi_fengtou/">封頭</a>?江蘇印染機(jī)械封頭廠商無錫國鑫封頭供應(yīng)</p><div id="37acuwv" class="leftbox clearfix"><h1>江蘇印染機(jī)械封頭廠商無錫國鑫封頭供應(yīng)</h1><div id="qurdvhe" class="proBig"><div id="dwikmta" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178006754867/4509795.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="feb2xce" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178006754867/4509795.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="clnprov" 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>江蘇印染機(jī)械封頭廠商,封頭</p><p><span>***更新：</span>2021-01-18 10:22:48</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="lubduby" 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(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="rlczbik" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vpmtvce" class="box"><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(shè)備的需求與合理，選擇合適的封頭種類：如橢圓形、蝶形，江蘇印染機(jī)械封頭廠商、錐形、球形等；2、封頭的尺寸：是指的內(nèi)徑還是外徑。如377，江蘇印染機(jī)械封頭廠商、426是以外徑為準(zhǔn)；350、400、450是以內(nèi)徑為準(zhǔn)；3、封頭的高度：一般封頭的高度我們都是按照國家標(biāo)準(zhǔn)來生產(chǎn)，但是也有客戶的產(chǎn)品設(shè)計不一樣，江蘇印染機(jī)械封頭廠商，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(zhì)：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(zhì)、耐酸性一定要使用316L材質(zhì)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(yīng)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(zhǔn)確與否，就看周長多少，是否標(biāo)準(zhǔn)；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(diǎn)平均固定，再均勻的進(jìn)行焊接處理。我們大多數(shù)使用不銹鋼封頭，都是要求能夠比較長時間的將建筑物的外貌能夠長期進(jìn)行保持。江蘇印染機(jī)械封頭廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇印染機(jī)械封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178006754867/4509795.png"></div><p style="text-indent:25px">球形封頭的特點(diǎn)：球形封頭的受力比橢圓形封頭和碟形封頭好；球形封頭的計算厚度是相同條件下筒體計算厚度的一半；（依據(jù)是薄壁殼體的無力矩理論，大家可以查詢相關(guān)手冊或者教科書，我就不給大家展示了），但是球形封頭的制造減薄量比橢圓形封頭和碟形封頭都要大一些，約15%。球形封頭的應(yīng)用場合：一般用在高壓設(shè)備中。另外，對于壓力稍微高一點(diǎn)且直徑比較大的塔器，如果用橢圓形封頭，可能計算出來的壁厚比較大。這種情況下，比較多人傾向采用球形封頭，目的是降低厚度，從而節(jié)省材料。但是球形封頭的容積比橢圓形封頭的大，塔釜的積液量也就相對較大，這容易造成工藝介質(zhì)大量積存和浪費(fèi)。所以對于這種情況，到底選擇球形封頭還是橢圓形封頭，還需要斟酌一下。安徽鍋爐設(shè)備封頭廠家對于大型封頭，由于運(yùn)輸和打開等因素，需要將其先分成多個部分，然后組裝并焊接在一起。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇印染機(jī)械封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179022237701/5539545.png"></div><p style="text-indent:25px">球形封頭是壓力罐密封容器中的一種，由是以球殼的球冠部分所形成的封頭，能夠安裝在容器為其提供密封能力和承載壓力。產(chǎn)品的材料通常使用碳鋼、不銹鋼、合金鋼等材料制成，外表光滑形狀呈半圓狀。適用與是氣體、液體和蒸汽等容器中。球形封頭鍛造工藝成熟，表面光滑，耐酸堿耐高溫，外觀美觀，質(zhì)地符合使用要求，主要用在。石油、電子、化工、醫(yī)藥、輕紡、食品、機(jī)械、工程等行業(yè)，具有不錯的效果。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(zhì)，也相對減少器皿制造成本。但當(dāng)壁厚較為大時，從節(jié)省鋼板材、控制成本的視角考慮，那樣的設(shè)計方案看起來不科學(xué)。</p><p style="text-indent:25px">封頭確認(rèn)各部正常后方可正式工作。作業(yè)操作：將封頭平穩(wěn)放置在工裝的園環(huán)上。將2個插銷拉出至適當(dāng)位置，防止封頭受壓后上移。按下按鈕，使壓頭前進(jìn)或后退即可完成封頭橢圓修正工序。該設(shè)備修正封頭直徑為2150-2420mm之間。操作臺上的紅色按鈕是緊急停止按鈕，工作過程中發(fā)生異常時，按下此按鈕。工作結(jié)束后，應(yīng)及時切斷電源。按規(guī)定保養(yǎng)設(shè)備。安全注意要求：油缸不允許超載和超行程使用。液壓系統(tǒng)高壓力不得超過16Mpa。操作工不允許調(diào)整溢流閥。橢圓形的封頭經(jīng)線曲率變化平滑連續(xù)，故應(yīng)力分布比較均勻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇印染機(jī)械封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177834666126/7478975.png"></div><p style="text-indent:25px">不銹鋼封頭組織應(yīng)力變化的結(jié)果是表層受拉應(yīng)力,另一方面鋼在熱處理過程中由于組織的變化即奧氏體向馬氏體轉(zhuǎn)變時,因此容積的增大會隨同工件體積的膨脹,工件各部位先后相變，而組織應(yīng)力則是組織轉(zhuǎn)變過程中產(chǎn)生的,造成體積長短不一致而發(fā)生組織應(yīng)力。內(nèi)部受壓應(yīng)力,恰好與熱應(yīng)力相反。組織應(yīng)力的大小與工件在馬氏體相變區(qū)的冷卻速度,形狀。整個冷卻過程中,熱應(yīng)力與組織應(yīng)力綜合作用的結(jié)果,就是工件中實際存在應(yīng)力。這兩種應(yīng)力綜合作用的結(jié)果是十分復(fù)雜的,受著許多因素的影響,如成分、形狀、熱處置工藝等。就其發(fā)展過程來說只有兩種類型,即熱應(yīng)力和組織應(yīng)力,作用方向相反時二者抵消,作用方向相同時二者相互迭加。由于內(nèi)部冷卻體積收縮不能自由進(jìn)行而使表層受壓內(nèi)部受拉。即在熱應(yīng)力的作用下使工件表層受壓而內(nèi)部受拉。這種現(xiàn)象受到冷卻速度,就會導(dǎo)致體積膨脹和收縮不均而產(chǎn)生應(yīng)力,不銹鋼封頭在加熱和冷卻過程中,不銹鋼封頭由于表層和內(nèi)部的冷卻速度和時間的不一致,形成溫差。封頭填料的各部位以及接觸的各部位需要精加工。南通粉罐運(yùn)輸車封頭制造廠</p><p style="text-indent:25px">封頭的種類比較多，包括凸形封頭、錐殼、變徑段、平蓋及緊縮口的設(shè)計。江蘇印染機(jī)械封頭廠商</p><p style="text-indent:25px">拼接封頭時，需要拼接距離，它應(yīng)大于3δ且不小于100mm。然而，制冷設(shè)備難以滿足該要求并且具有其特殊性，避免在碟形封頭的r處拼接，否則會導(dǎo)致變薄和高應(yīng)力。拼接時焊縫方向要求只允許是徑向和環(huán)向，以后大型封頭可能會取消此要求。拼接封頭的焊接接頭系數(shù)熔接后形成的封頭，拼接焊縫應(yīng)通過100％射線照相或超聲波檢查，并且合格等級遵循設(shè)備外殼。焊縫的檢驗水平和比例與設(shè)備外殼相同，造成高浪費(fèi)。因此，盡管封頭拼接是經(jīng)過100％測試的，但合格級別卻有所不同，并且隨設(shè)備外殼而變化。江蘇印染機(jī)械封頭廠商</p><p style="text-indent:25px">無錫國鑫封頭制造有限公司位于玉祁街道曙光工業(yè)園。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下封頭，不銹鋼封頭，碳鋼封頭，鋁封頭深受客戶的喜愛。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(jī)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(yù)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/2902029.html</p></div></div></div></div></div><div id="3ctahjv" class="page-right twoColRt"><div id="icjgs7r" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tip7893" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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