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src="https://tyunfile.71360.com/UploadFile/nabore/637383582512402344/7597809.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ga8kh8o" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nabore/637383582512402344/7597809.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="j2jl4ln" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海高溫臺車爐企業(yè),臺車爐</p><p><span>***更新：</span>2020-12-27 08:14:28</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="8b8nkb2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">納博熱（上海）工業(yè)爐有限公司</a></p><p><span>聯(lián)系人：</span>齊秀萍</p><p><span>郵箱: </span>info@nabertherm-cn.com</p><p><span>電話: </span>13816407062</p><p><span>傳真: </span>021_64903107</p><p><span>網(wǎng)址: </span>http://www.nabertherm-cn.com</p><p><span>手機: </span>021-64902960</p><p><span>地址: </span>瓶北路150弄158號</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="3rgpi2k" class="page-proshow02"><p class="title">詳細說明</p><div id="xhzbg2i" class="box"><p><p style="text-indent:25px">臺車爐影響對流換熱的因素：發(fā)生流動的原因：由于流體各部分密度不同發(fā)塵自然流動，自然流動情況下的對流換熱稱自然對流換熱；外力作用下發(fā)生強制流動，強制流動情況下的對流換熱稱強制對流換熱。流體流動的情況：流體按其流動情況分層流和紊流(湍流)兩類。流體內(nèi)質(zhì)點平行于壁面流動時稱層流，此時流體與表面問的傳熱主要依據(jù)傳導方式，流體的熱導率小，層流下的對流換熱很微弱，上海高溫臺車爐企業(yè)。流體內(nèi)質(zhì)點紊亂流動時稱紊流，此時流體表面有一很薄的薄層呈層流流動，稱為層流邊界層。邊界層內(nèi)的傳熱主要為傳導方式，而上流部分兼有對流方式。下的流部分由于質(zhì)點的急劇混合作用，溫度均勻過程迅速，溫降很小，上海高溫臺車爐企業(yè)，較大溫降是在層流邊界層內(nèi)，即邊界層熱阻較大，上海高溫臺車爐企業(yè)。因此此任何減小邊界拐熱阻的措施都可明顯增大對流換熱。增大流速w，會增加流體紊亂程度并使邊界層減薄而減小熱阻，從而增大對流換熱。在臺車爐流動途徑設(shè)置障礙，會增加流體的旋渴和紊亂程度，也可以增強對流換熱。臺車爐使用和維修要點：因電極鹽爐啟動困難而哲時停爐時，可在爐口加蓋并在低檔供電下保溫。上海高溫臺車爐企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高溫臺車爐企業(yè),臺車爐" src="https://tyunfile.71360.com/UploadFile/nabore/637383582512402344/7597809.png"></div><p style="text-indent:25px">臺車爐密封狀況的好壞，直接影響到爐內(nèi)溫度的均勻性和電力消耗。影響臺車式退火爐密封情況的因素主要有三方面： 1. 爐門與爐體、爐車的結(jié)合部：這一結(jié)合部是臺車式爐較難以密封，又是爐子泄露較大的部位，本爐子采用彈簧壓緊加爐門軟邊機構(gòu)密封?？梢允惯@一部位密封很好，調(diào)節(jié)方便。 2.臺車爐的爐體與臺車兩側(cè)的結(jié)合部：因為爐體與爐車有相對進出，考慮到加熱后的膨脹，這一部位應(yīng) 有一定的間隙，所以此部位采用沙封兼應(yīng)用全纖維特性進行軟密封結(jié)構(gòu)密封。這種密封結(jié)構(gòu)的特點是密封可靠，調(diào)節(jié)方便。 3.退火爐臺車與爐體后面的結(jié)合部：采用插入-軟邊密封，利用爐車本身動力壓緊。綜合采用以上密封技術(shù)，確保爐子在生產(chǎn)過程中始終處于密封狀態(tài)，杜絕了高溫爐氣是外逸，改善了工作環(huán)境，并增強節(jié)能效果。如果臺車退火爐保溫是因密封的原因造成的，需要優(yōu)先檢查上述三個環(huán)節(jié)包含的相關(guān)爐體部件。湖北廂式臺車爐廠家臺車爐應(yīng)用兩支熱電偶，分別測定鹽浴及加熱元件附近的爐膛溫度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高溫臺車爐企業(yè),臺車爐" src="https://tyunfile.71360.com/UploadFile/nabore/637383582562802734/4322766.png"></div><p style="text-indent:25px">全纖維臺車爐的特點：1、爐門采用高鋁全纖維耐火甩絲毯與型鋼組合框架結(jié)構(gòu)，電動葫蘆升降，爐門密封機構(gòu)采用長短杠桿彈簧式自動壓緊凸輪機構(gòu)和軟邊密封裝置。保證上下無摩擦、輕松自如、安全可靠。2、煙囪安裝自動爐壓控制、蝶閥等，可調(diào)節(jié)降溫速度。3、加熱采用高速燒嘴，均布兩側(cè)。連續(xù)比例調(diào)節(jié)燃燒。執(zhí)行器調(diào)節(jié)風量的大小，通過比例閥來調(diào)節(jié)燃氣量的大小，達到空燃比例燃燒，燃氣和風量設(shè)有下限限幅，每個燒嘴的燃氣管上設(shè)有控制電磁閥，每個燒嘴配有單獨完整的燃燒控制器，具有自動點火，火焰檢測，滅火報警自動斷氣。這樣充分保證燃燒溫控系統(tǒng)的穩(wěn)定性、安全性。</p><p style="text-indent:25px">臺車爐熱處理電阻爐的設(shè)計是一項綜合性的技術(shù)工作：爐膛尺寸的確定：以箱式爐為例:爐膛尺寸包括爐膛有效尺寸(指工件實際擺放所占的面積作為爐底板有效面積)寬度B和長度L以及堆放工件的有效高度H和爐膛砌磚體內(nèi)腔的尺寸BxLxH兩個部分。確定爐膛尺寸依據(jù):工件尺寸、形狀、技術(shù)要求、生產(chǎn)率等。還考慮爐內(nèi)溫度均勻性、傳熱特以及裝出料和檢修方便。一般臺車爐保證有足夠的生產(chǎn)效率的前提，應(yīng)盡量減小爐膛尺寸。爐底面積：實際排料法(爐子一次裝爐量):(對生產(chǎn)量不大、工件尺寸較大而且形狀特殊者) 原則:工件與電熱元件或工件與爐膛前、后壁之間應(yīng)保持一定距離，一般為0.1~0.15m。加熱能力指標法:(當工件品種多且工藝周期不同時，爐底面積可根據(jù)爐底單位面積的生產(chǎn)能力--生產(chǎn)率計算) 原則:裝料的面積F1(有效面積)一般為總面積的70%-85%。爐底寬度B與長度L之比一般應(yīng)保持在2/3-1/2。標準荷載下，模擬條件的爐身各開孔率均使爐頂封罩孔洞周邊處于彈性狀態(tài)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高溫臺車爐企業(yè),臺車爐" src="https://tyunfile.71360.com/UploadFile/nabore/637383582260166016/4635667.png"></div><p style="text-indent:25px">臺車爐是屬于周期式作業(yè)爐，爐膛不分區(qū)域。臺車爐的結(jié)構(gòu)：爐底為一可移動的臺車。加熱前，臺車在爐外裝料，加熱件放在**的墊鐵上，然后由牽引機構(gòu)將臺車拉入爐內(nèi)進行加熱，加熱之后再由牽引機構(gòu)將臺車拉出爐外卸料，之后或用吊車將加熱的工件吊到鍛壓設(shè)備上進行加工。 1.高溫系列（爐溫0～1200℃）臺車式加熱爐(5噸-100噸)適用于高合金鋼的高溫正火、退火、淬火、軋輥高溫退火和不銹鋼零件的固溶處理加熱； 2.中溫系列（爐溫0～950℃）臺車式加熱爐(5噸-100噸)適用于一般金屬零件，在空氣中進行正火、退火、淬火等熱處理加熱。高速鋼材料和軸承鋼材料的裝罐退火； 3.低溫系列（爐溫0～750℃）臺車式加熱爐(5噸-200噸)適用于鋼制零部件的回火、低溫退火、型芯烘干； 4.臺車爐適用于管材、冷拔型鋼、直線材、盤料的裝罐退火加熱等； 5.雙門雙臺車加熱爐適用于被處理材料半連續(xù)式生產(chǎn)的加熱工藝。爐子效率高。臺車爐使用和維修要點：工件裝爐應(yīng)與電極，浴槽側(cè)壁，爐底及液面保持適當距離。上海高溫臺車爐企業(yè)</p><p style="text-indent:25px">臺車爐炭磚砌體的上表面均應(yīng)平整，并按要求逐層檢查，必要時應(yīng)磨平。上海高溫臺車爐企業(yè)</p><p style="text-indent:25px">臺車爐的臺車框架采用型鋼焊接成形，其鋼性保證在滿負荷下不變形。內(nèi)用耐火磚砌筑，易碰撞部位和承重部位用重質(zhì)磚砌筑，增強爐襯結(jié)構(gòu)強度，臺車的行走采用自行式結(jié)構(gòu)，由減速機傳動鏈輪帶動走輪在軌道上行走。臺車密封采用自動迷宮式結(jié)構(gòu)和軟接觸雙密封，臺車進入爐內(nèi)通過凸輪及滾輪斜面作用，自動升起后進行密封。臺車開出，連鎖控制，即稍打開爐門后，自動切斷加熱元件，同時恢復加熱元件電源。為了縮短冷卻工藝時間，爐頂可設(shè)有加快冷卻用排氣裝置，冷卻到一定溫度打開、關(guān)閉打開操作由操作人員在爐子一側(cè)通過手動機構(gòu)或自動控制來完成。并可選配臺車傾斜卸料機構(gòu)。電控部分主要包括溫控、操作兩部分。溫控采用國產(chǎn)數(shù)顯表交流接觸器實行普通位式控制，另配記錄儀記錄完整工藝曲線，并可超溫報警；操作采用按扭加燈光顯示，實現(xiàn)對臺車進出、加熱元件通斷及爐門升降等動作的控制，并設(shè)有連鎖裝置，當爐門升高工或關(guān)閉至一定位置時臺車可進行動作，安全可靠。上海高溫臺車爐企業(yè)</p></p><br /><p>文章來源地址: 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