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class="proBig"><div id="w23eyfh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177927468306/612836.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pya27sy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177927468306/612836.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="w8cjl2v" 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>徐州碟形封頭廠商,封頭</p><p><span>***更新：</span>2020-11-27 03:20:10</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="qfcjlx7" 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(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="7m2mtq2" class="page-proshow02"><p class="title">詳細說明</p><div id="ymol2r3" class="box"><p><p style="text-indent:25px">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(zhǔn)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(chǎn)品有盲板和管帽，不過那兩種產(chǎn)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(chǎn)品。封頭的品質(zhì)直接關(guān)系到壓力容器的長期安全可靠運行。國鑫封頭廠是專業(yè)從事碳鋼、合金鋼，徐州碟形封頭廠商、不銹鋼等各種高中低壓管道及配件生產(chǎn)銷售的大型企業(yè)，從原材料進廠復(fù)檢，生產(chǎn)過程中間控制直到成品出廠始終堅持全檢制和無損探傷。公司擁有一整套用于管件產(chǎn)品的化學(xué)分析、機械性能、金相分析、磁粉探傷，徐州碟形封頭廠商，徐州碟形封頭廠商、超聲波探傷、X光探傷及水壓爆破等實驗手段，可完全滿足用戶提出的各項檢測要求。從橢圓封頭的制造來看，一般是先拼接后壓制成型。徐州碟形封頭廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州碟形封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177927468306/612836.png"></div><p style="text-indent:25px">壓制封頭前需要做哪些準(zhǔn)備工作？1、運行前檢查：開機前檢查油箱上的油位指示器，如缺油應(yīng)及時補充至正常油位。檢查周圍環(huán)境是否有影響正常工作的障礙物。開機后應(yīng)先使設(shè)備各部空運轉(zhuǎn)2～3次，確認各部正常后方可正式工作。2、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。3、安全注意要求：油缸不允許超載和超行程使用。液壓系統(tǒng)較高壓力不得超過16Mpa。操作工不允許調(diào)整溢流閥。設(shè)備啟動后，操作工不得擅自離開操作臺，如需離開，應(yīng)關(guān)閉設(shè)備，并切斷電源。從事設(shè)備調(diào)試、維修和保養(yǎng)時，必須切斷電源，使設(shè)備完全處于斷電狀態(tài)，并在電控柜上‘有人作業(yè)，禁止合閘’的警示牌，并設(shè)專人監(jiān)護。完畢后，須經(jīng)確認一切正常，方可摘除警示牌，重新啟動設(shè)備。蘇州半球封頭報價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="徐州碟形封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178619026503/2262348.png"></div><p style="text-indent:25px">影響封頭較小厚度的因素有哪些？1、剛度的影響：封頭在承受壓力的同時本身應(yīng)具備一定的剛度，以免發(fā)生變形破壞。因此，GB150規(guī)定，對碳素鋼、低合金鋼制容器不包括腐蝕裕量的較小厚度應(yīng)不小于3mm；對高合金鋼制容器不包括腐蝕裕量的較小厚度不小于2mm。2、壓力載荷的影響：封頭是承受一定壓力的受壓元件，首先必須滿足的條件是壓力載荷，無論承受內(nèi)壓或者外壓載荷的封頭都可通過GB150第3章有關(guān)計算公式得到封頭計算厚度，其中，計算厚度+腐蝕裕量=設(shè)計厚度，這個設(shè)計厚度是單從壓力載荷方面得到的封頭需要的較小厚度。3、內(nèi)壓失穩(wěn)的影響：內(nèi)壓作用下，標(biāo)準(zhǔn)橢圓封頭的應(yīng)力分布如圖1。由應(yīng)力分布圖可以看出，在封頭底邊處產(chǎn)生周向壓縮應(yīng)力，此處封頭容易發(fā)生周向失穩(wěn)。為防止橢圓封頭在內(nèi)壓作用下失穩(wěn)，GB150規(guī)定，對于Di/2hi≤2的橢圓形封頭的有效厚度應(yīng)不小于封頭內(nèi)直徑的0.15%，對于Di/2hi＞2的橢圓形封頭的有效厚度應(yīng)不小于封頭內(nèi)直徑的0.30%。上述雖然限制的是有效厚度，但其實也間接限制了封頭成形的較小厚度。</p><p style="text-indent:25px">封頭的使用特征。1、封頭的不透光性。管材管件應(yīng)不透光。2、封頭的衛(wèi)生性能是否符合國家標(biāo)準(zhǔn)規(guī)定。此項可檢查衛(wèi)生檢驗部門對管材管件的衛(wèi)生性能檢驗報告。3、封頭系統(tǒng)適用性。管材與管件連接后應(yīng)通過8760小時內(nèi)壓和5000次熱循環(huán)兩項組合試驗。4、封頭的物理力學(xué)性能和化學(xué)性能。靜液壓試驗、熔體質(zhì)量流動速率、靜液壓狀態(tài)下熱穩(wěn)定性試驗以及管材的縱向回縮率、簡支梁沖擊試驗是否符合國家標(biāo)準(zhǔn)規(guī)定，此項可檢查材料的檢驗報告內(nèi)容及復(fù)試報告內(nèi)容。5、封頭的管徑和壁厚。根據(jù)GB/T18742.2-2002國家標(biāo)準(zhǔn)，管材按尺寸分為S5、S4、S3.2、S2.5、S2五個系列。封頭管帽系列S與公稱壓力有相應(yīng)的對應(yīng)關(guān)系，管材規(guī)格用管系列S、公稱外徑dn*公稱壁厚en表示，主要檢驗管材的公稱外徑、平均外徑以及與管系列對應(yīng)的壁厚、封頭的承口尺寸與相應(yīng)的公稱外徑。6、封頭外觀。管材的色澤應(yīng)基本一致，內(nèi)外表面應(yīng)光滑、平整，無凹陷、氣泡和其他影響性能的表面缺陷，不應(yīng)含有可見雜質(zhì)；管件表面應(yīng)光滑、平整，不允許有裂紋、氣泡、脫皮和明顯的雜質(zhì)、嚴重的縮形以及色澤不均、分解變色等缺陷。封頭是比較適合進行多場景工作的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州碟形封頭廠商,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178142525591/9957459.png"></div><p style="text-indent:25px">現(xiàn)在，封頭廠的我就來跟大家講一講封頭加工需要注意的一些要點吧！首先，封頭一般是采用厚板沖壓成形，由于材料在成形過程中各部分的應(yīng)力應(yīng)變狀態(tài)不同，使得沖壓成形后的封頭各部分的壁厚也不相同，因此，封頭成形不能忽視壁厚變化。影響封頭壁厚變化的主要因素有成形材料的力學(xué)性能、變形程度以及沖壓模具結(jié)構(gòu)。材料強度越低，壁厚減薄量越大；變形程度越大以及模具間隙和凹模圓角越小，則壁厚減薄量越大；模具潤滑狀況不佳，減薄量增大。其次，封頭沖壓成形模具間隙不能過小。在封頭拉深成形過程中，其直邊急劇增厚，尤其是直邊長度在lOOmm以上時，增厚更為嚴重，其增厚率可達10%以上。因此封頭成形模具間隙不能過小，應(yīng)大于料厚的10%，否則，材料無法通過模具間隙，工件底部嚴重變薄甚至拉破，但模具間隙過大、凹模圓角過大，將降低壓邊效果，又會在封頭上部產(chǎn)生褶皺。因此，封頭沖壓成形模具的間隙要合理選擇。末尾，瓜瓣類厚板成形不能忽視冷校形。瓜瓣類厚板零件，一般采用熱沖壓成形。由于熱壓收縮率難以控制，故在設(shè)計模具時一般不予考慮，而是在成形后進行冷校形，以保證其形狀和尺寸的精度要求，所以瓜瓣類厚板成形不能忽視冷校形。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。南通印染機械封頭加工</p><p style="text-indent:25px">要讓容器封頭加工的作用好，清洗是非常重要的一個步驟，一般都是選用超聲波的方法來進行。徐州碟形封頭廠商</p><p style="text-indent:25px">封頭形成容積長成沒有分歧而發(fā)生機構(gòu)應(yīng)力。不銹鋼封頭的加熱表現(xiàn)不銹鋼封頭在加熱以及冷卻的時候會有什么表現(xiàn)？即正在熱應(yīng)力的作用下使作件表層受壓而心部受拉。不銹鋼封頭正在加熱和結(jié)冰進程中,表層和心部的結(jié)冰進度和工夫的沒有分歧,構(gòu)成時差，招致容積收縮和膨脹沒有均而發(fā)生應(yīng)力,即熱應(yīng)力。沒有銹鋼封頭正在熱應(yīng)力的作用下,因為表層開端量度低于心部,膨脹也大于心部而使心部受拉,當(dāng)結(jié)冰終了時，因為心部結(jié)冰容積膨脹沒有能自正在停止而使表層受壓心部受拉。徐州碟形封頭廠商</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(shè)備、制藥設(shè)備、環(huán)保設(shè)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(wù)實、誠實可信的企業(yè)。國鑫封頭作為主營封頭、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(shè)備、制藥設(shè)備、環(huán)保設(shè)備、罐體運輸車輛等行業(yè)的企業(yè)之一，為客戶提供良好的封頭，不銹鋼封頭，碳鋼封頭，鋁封頭。國鑫封頭繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。國鑫封頭始終關(guān)注機械及行業(yè)設(shè)備行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: 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