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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>常州碳鋼封頭,封頭</p><p><span>***更新：</span>2021-01-25 08:20:20</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="cariep3" 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="asytjkq" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zmiugxi" class="box"><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、為了避免薄封頭拉伸時(shí)起皺和鼓包，可先將毛坯初次予壓成拱形。S/Di=0.6~2%時(shí)，壓凸R≈0.8~0.9Di.對(duì)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，常州碳鋼封頭、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(jìn)行壓制。當(dāng)板料拼接時(shí)，其外面一條焊縫距板中心距離應(yīng)小于0.25Di且小板寬不得小于300mm.(Di--封頭內(nèi)直徑)3、拼接的毛坯板料壓凸后，需用放大鏡嚴(yán)格檢查是否有裂紋，當(dāng)有懷疑時(shí)，可作表面探傷檢查。4、拼接的毛坯板料壓凸時(shí)，焊接接頭處產(chǎn)生裂紋時(shí)，應(yīng)把裂紋清理掉，常州碳鋼封頭，按工藝要求做焊補(bǔ)與探傷。封頭檢驗(yàn)檢測(cè)標(biāo)準(zhǔn)：1、檢驗(yàn)用量具：檢驗(yàn)用鋼直尺，常州碳鋼封頭、銅卷尺應(yīng)分別符合JJG1和JJG4的規(guī)定。直角尺和角規(guī)或其它量具應(yīng)符合有關(guān)標(biāo)準(zhǔn)或技術(shù)文件的規(guī)定。封頭建立了閥桿位移量與控制器輸出信號(hào)之間的一一對(duì)應(yīng)關(guān)系。常州碳鋼封頭</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州碳鋼封頭,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177816365410/2698061.png"></div><p style="text-indent:25px">封頭加工的步驟有哪些？1.沖壓成形，封頭進(jìn)行熱壓時(shí)，應(yīng)將上下胎模進(jìn)行預(yù)熱，預(yù)熱溫度應(yīng)在150℃以上。毛坯鋼板出爐后，應(yīng)立即放到胎膜上，同時(shí)還要清理毛坯上的氧化皮和雜物，并迅速校正，以保證沖壓時(shí)溫度不低于終壓溫度。對(duì)于薄壁封頭，為了避免出現(xiàn)鼓包皺褶等現(xiàn)象，可采用兩次成形法。2.脫模，在封頭下部應(yīng)墊上緩沖物，以免碰壞。使用**卡環(huán)，擋住它的邊緣，當(dāng)上模提升時(shí)，它會(huì)發(fā)生脫落。脫模后，需冷至550℃以下時(shí)才能吊運(yùn)，以防發(fā)生變形。如果有試板，則應(yīng)把試板放入其中，一起進(jìn)行冷卻。熱壓成形時(shí)的始?jí)簻囟群徒K壓溫度應(yīng)采用熱電偶溫度計(jì)或其它方法進(jìn)行測(cè)量，并做好記錄。3.坡口加工，它的坡口可選用機(jī)加工和熱切割加工兩種方法，坡口型式應(yīng)嚴(yán)格按照工藝文件要求進(jìn)行。常州碳鋼封頭旋壓法加工封頭的優(yōu)點(diǎn)：不需要大型模具，節(jié)省了大型模具費(fèi)用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州碳鋼封頭,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178601038405/2065035.png"></div><p style="text-indent:25px">拼接封頭時(shí)，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(huì)導(dǎo)致變薄和高應(yīng)力。拼接時(shí)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(huì)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(guò)100％射線照相或超聲波檢查，并且合格等級(jí)遵循設(shè)備外殼。焊縫的檢驗(yàn)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(guò)100％測(cè)試的，但合格級(jí)別卻有所不同，并且隨設(shè)備外殼而變化。</p><p style="text-indent:25px">從受力和制造兩方面比較半球形、橢圓形、碟形、錐殼和平蓋封頭的特點(diǎn)，并說(shuō)明其主要應(yīng)用場(chǎng)合。(1)半球形封頭：在均勻內(nèi)壓作用下，薄壁球形容器的薄膜應(yīng)力為相同直徑圓筒體的一半。但缺點(diǎn)是深度大，直徑小時(shí)，整體沖壓困難，大直徑采用分瓣沖壓其拼焊工作量也較大。半球形封頭常用在高壓容器上。(2)橢圓形封頭：橢球部分經(jīng)線曲率變化平滑連續(xù)，故應(yīng)力分布比較均勻，且橢圓形封頭深度較半球形封頭小得多，易于沖壓成型，是目前中、低壓容器中應(yīng)用較多的封頭之一。(3)碟形封頭：是一不連續(xù)曲面，在經(jīng)線曲率半徑突變的兩個(gè)曲面連接處，由于曲率的較大變化而存在著較大邊緣彎曲應(yīng)力。該邊緣彎曲應(yīng)力與薄膜應(yīng)力疊加，使該部位的應(yīng)力遠(yuǎn)遠(yuǎn)高于其它部位，故受力狀況不佳。但過(guò)渡環(huán)殼的存在降低了封頭的深度，方便了成型加工，且壓制碟形封頭的鋼模加工簡(jiǎn)單，使碟形封頭的應(yīng)用范圍較為普遍。(4)錐殼：結(jié)構(gòu)不連續(xù)，錐殼的應(yīng)力分布并不理想，但其特殊的結(jié)構(gòu)形式有利于固體顆粒和懸浮或粘稠液體的排放，可作為不同直徑圓筒體的中間過(guò)渡段，因而在中、低壓容器中使用較為普遍。球形封頭制造方法有：鍛壓法、滾軋法、彎曲成形法、鼓脹法。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州碳鋼封頭,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178472191754/9493282.png"></div><p style="text-indent:25px">鈦板不銹鋼封頭屬于不銹鋼封頭的一種，主要是用來(lái)對(duì)不銹鋼管道進(jìn)行密封的零件。在它制造的過(guò)程中，有一個(gè)工藝程序是需要謹(jǐn)慎再謹(jǐn)慎的，那是熱處理工藝。在對(duì)鈦板不銹鋼封頭進(jìn)行熱處理的過(guò)程中是比較容易出現(xiàn)熱應(yīng)力的，原因是加熱和冷卻的過(guò)程中，表層和心部的冷卻速度和時(shí)間的不一致，有溫差存在。另外還比較容易出現(xiàn)組織應(yīng)力，主要是由于組織的變化即奧氏體向馬氏體轉(zhuǎn)變時(shí)，因比容的增大會(huì)伴隨工件體積的膨脹，工件各部位先后相變，造成體積長(zhǎng)大不一致。封頭為了防止對(duì)外泄漏，往往將填料壓得很緊。南通球冠形封頭廠家</p><p style="text-indent:25px">封頭是比較適合進(jìn)行多場(chǎng)景工作的。常州碳鋼封頭</p><p style="text-indent:25px">由專業(yè)人員用**的東西或裝置刺進(jìn)8字封頭的焊接部件以及接近焊縫的部件之間直到元部件徹底分離，然后調(diào)查焊點(diǎn)的成形質(zhì)量；五金封頭上的瑕疵是簡(jiǎn)單呈現(xiàn)的。質(zhì)量不合格的封頭直接丟在垃圾箱里，合格的封頭則就可以直接進(jìn)入包裝車間。進(jìn)行嚴(yán)格包裝。整理時(shí)間為1小時(shí)，依照用戶要求規(guī)劃制作的出產(chǎn)線以12m/min的速度輸送沖壓板料。在這樣高的出產(chǎn)效率下，每個(gè)封頭在超聲波清潔室中的停留時(shí)間*有7s。依據(jù)詳細(xì)設(shè)備的結(jié)構(gòu)不同，出產(chǎn)線的出產(chǎn)效率還可以進(jìn)一步的進(jìn)步。除此以外，這種辦法還允許有特別要求的工件在出產(chǎn)線外進(jìn)行加工。原則上它能適應(yīng)各種特別的專業(yè)要求。常州碳鋼封頭</p><p style="text-indent:25px">無(wú)錫國(guó)鑫封頭制造有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)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(ài)。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在機(jī)械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3003929.html</p></div></div></div></div></div><div id="7ef3fwx" class="page-right twoColRt"><div id="2st3ypl" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rz3dpfr" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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