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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>上海球形封頭生產(chǎn)制造廠家,封頭</p><p><span>***更新：</span>2021-01-05 03:16:25</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="8mogxry" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫國(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="2wdv3ca" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="u78su4n" class="box"><p><p style="text-indent:25px">封頭制造時(shí)需要控制好溫度，依據(jù)情況確定是否需要表面高溫的防護(hù)。必要時(shí)應(yīng)留有去除封頭表面氧化層的裕量。依據(jù)封頭的類型，上海球形封頭生產(chǎn)制造廠家、規(guī)格、材質(zhì)、可采用整塊板或者拼板經(jīng)過冷沖壓、熱沖壓、冷旋壓、熱旋壓、冷卷、熱卷等方法成形封頭；也可以分瓣成形后再組焊成封頭，上海球形封頭生產(chǎn)制造廠家。加熱爐內(nèi)的氣氛呈中性或者弱氧化性，加熱的火焰不宜和加工件直接接觸。鋁封頭成型時(shí)，由封頭制造單位依據(jù)情況確定是否需要表面高溫的防護(hù)。必要時(shí)應(yīng)留有去除封頭表面氧化層的裕量，上海球形封頭生產(chǎn)制造廠家。封頭是壓力容器上使用的堵塞裝置，對(duì)密封性有非常嚴(yán)格的要求。上海球形封頭生產(chǎn)制造廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海球形封頭生產(chǎn)制造廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178513314627/1105996.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(chǎn)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(shí)還要注意，在加工封頭產(chǎn)品的時(shí)候，其焊縫中的飛濺物以及熔渣等雜質(zhì)必須要徹底去除干凈；同時(shí)在產(chǎn)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(yīng)較為均勻統(tǒng)一。需要注意的是，在對(duì)封頭產(chǎn)品進(jìn)行熱處理的過程中，其表面可能會(huì)產(chǎn)生一層黑色的氧化層。散裝水泥罐車封頭生產(chǎn)制造廠家封頭就是起到一個(gè)封死管道的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海球形封頭生產(chǎn)制造廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179532595219/4377952.png"></div><p style="text-indent:25px">封頭熱鍛時(shí)，由于變形能和變形阻力都很小，可以鍛造形狀復(fù)雜的大鍛件。要得到高尺寸精度的鍛件，可在900-1000℃溫度域內(nèi)用熱鍛加工。封頭包括凸形封頭、錐殼、變徑段、平蓋及緊縮口的設(shè)計(jì)。凸形封頭包括：半球形封頭橢圓形封頭碟形封頭和球冠形封頭。從受力角度看凸形封頭中從半球形封頭逐漸不好。封頭的拼接位置拼接的間隔應(yīng)有要求，為大于3δ，且不小于100mm焊接熱影響區(qū)是個(gè)高應(yīng)力區(qū)，并且在該區(qū)的化學(xué)成分會(huì)有燒損。所以要避開高應(yīng)力區(qū)，該區(qū)域與厚度有關(guān)。</p><p style="text-indent:25px">封頭等到冷卻結(jié)束之后，心部的冷卻體積也不能進(jìn)行自由的收縮，會(huì)讓材料和熱處理工藝受到影響。如果冷度速度快，那么相對(duì)的碳含量和合金量也越高，在進(jìn)行冷卻的時(shí)候存在不均勻塑形的幾率越高，會(huì)形成殘余應(yīng)力的可能性也越大。其實(shí)封頭的變大都表現(xiàn)在表層的受應(yīng)拉力、心部受壓應(yīng)力，這都和熱應(yīng)力是相反的，所以說應(yīng)力的大小和冷卻速度、形狀、材料的化學(xué)成分有關(guān)。封頭是安裝在一定體積的容器上的時(shí)候，要求其盡可能的起到密封的效果。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海球形封頭生產(chǎn)制造廠家,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178064772164/939965.png"></div><p style="text-indent:25px">球形封頭制造方法如下：1、鍛壓法：用型鍛機(jī)將管子端部或一部分予以沖伸，使外徑減少，常用型鍛機(jī)有旋轉(zhuǎn)式、連桿式、滾輪式。2、滾軋法：一般不用芯軸，適合于厚壁管內(nèi)側(cè)圓緣。在管內(nèi)放置芯子，外周用滾輪推壓，用于圓緣加工。沖壓法：在沖床上用帶錐度的芯子將管端擴(kuò)到要求的尺寸和形狀。3、彎曲成形法：有三種方法較為常用，一種方法叫伸展法，另一種方法叫沖壓法，第三種滾輪法，有3－4個(gè)輥，兩個(gè)固定輥，一個(gè)調(diào)整輥，調(diào)整固定輥距，成品管件就是彎曲的。4、鼓脹法：一種是在管內(nèi)放置橡膠，上方用沖子壓縮，使管子凸出成形；另一種方法是液壓鼓脹成形，在管子中部充入液體，液體壓力把管子鼓成所需要的形狀，波紋管的生產(chǎn)大部分用的是這種方法。被調(diào)介質(zhì)為粘性流體或含有固體懸浮物時(shí)，用封頭可以克服介質(zhì)對(duì)閥桿移動(dòng)的阻力。常州粉罐運(yùn)輸車封頭廠家</p><p style="text-indent:25px">封頭的作用在于對(duì)金屬板材施加外力，讓金屬板材發(fā)生變形從而使尺寸和形狀發(fā)生改變，性能也能得到改善。上海球形封頭生產(chǎn)制造廠家</p><p style="text-indent:25px">球形封頭的性能與特點(diǎn)分析：1、從受力情況看：球形封頭的兩向應(yīng)力相等，而且在相同的P和D條件下，球形封頭上的應(yīng)力*為筒體上的周向應(yīng)力的一半；橢圓形封頭經(jīng)線曲率變化平滑連續(xù)，故應(yīng)力分布比較均勻，對(duì)于標(biāo)準(zhǔn)橢圓形封頭ab2，在相同的P和D條件下，封頭較大的薄膜應(yīng)力數(shù)值上與圓筒中的周向應(yīng)力相等。故橢圓形封頭的受力狀況*次于半球形封頭，而比其它封頭好；2、從制造難易程度看：橢圓形封頭的深度比半球形封頭淺的多，較易制造；3、從制造所使用的材料多少來看：從理論上講，在一些條件均相同之下，標(biāo)準(zhǔn)橢圓形封頭壁厚大約比半球形封頭厚一倍，而與圓筒的壁厚相近。故球形封頭比橢圓形封頭更節(jié)約材料。4、從結(jié)構(gòu)上看：球形封頭為半個(gè)球殼。5、球形封頭因具有受力均勻、應(yīng)力較小的等優(yōu)點(diǎn)被普遍用于壓力較高、直徑較大的高壓容器和特殊需要的場(chǎng)合；橢圓形封頭經(jīng)線曲率變化平滑連續(xù)，易于沖壓成型，是目前應(yīng)用較多的封頭。上海球形封頭生產(chǎn)制造廠家</p><p style="text-indent:25px">無錫國(guó)鑫封頭制造有限公司總部位于玉祁街道曙光工業(yè)園，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。國(guó)鑫封頭擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供封頭，不銹鋼封頭，碳鋼封頭，鋁封頭。國(guó)鑫封頭繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。國(guó)鑫封頭始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使國(guó)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/2707494.html</p></div></div></div></div></div><div id="3qcoqzv" class="page-right twoColRt"><div id="uj7iutz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kzln3jl" 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" 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