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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>武漢堆焊,堆焊</p><p><span>***更新：</span>2020-07-30 00:20:21</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="hugijlc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">箴拓自動化設(shè)備（上海）有限公司</a></p><p><span>聯(lián)系人：</span>黃明</p><p><span>郵箱: </span>ztweld@163.com</p><p><span>電話: </span>18939866305</p><p><span>傳真: </span>021_39907129</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-39907159</p><p><span>地址: </span>寶安公路2940號</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="jifc885" class="page-proshow02"><p class="title">詳細說明</p><div id="lkmyahe" class="box"><p><p> 為了保護鉆具和套管在鉆井過程中不至于過度磨損，采用堆焊方式或(其他方法)將堆焊材料沿鉆桿接頭圓周方向堆焊(或熔敷)寬約30～50mm、厚2～3mm的環(huán)形帶。此環(huán)形帶即稱之為鉆桿接頭耐磨帶。目前在工程上使用的耐磨帶堆焊材料主要有鐵基合金粉末、碳化鎢顆粒和耐磨帶焊絲。 </p> <p> <br /> </p> <p> 一、鐵基合金粉末 </p> <p> <br /> </p> <p> 鐵基合金粉末是通過調(diào)整18-8型或Cr13型不銹鋼的Ni、Cr含量，并添加B，武漢堆焊、Si元素而成的。鐵基合金粉末的噴涂層硬度、致密性、結(jié)合強度等于鎳基合金粉末涂層大體相當(dāng)，武漢堆焊，武漢堆焊，因此在不少場合下可代替鎳基合金粉末，但涂層的韌性低于鎳基合金粉末涂層。鐵基合金粉末涂層具有良好的耐磨性。 </p> <p> <br /> </p> <p> 鉆桿接頭耐磨帶堆焊鐵基合金粉末采用的是等離子弧堆焊方法。等離子弧堆焊是利用轉(zhuǎn)移型等離子弧作為熱源，以鐵基合金粉末作填充金屬的一種堆焊工藝。其焊接溫度較高，容易造成局部組.織變大，且重復(fù)堆焊性變差，在應(yīng)用過程中，容易出現(xiàn)耐磨帶的開裂和剝落。 </p> <p> <br /> 有誰知道上海堆焊的技術(shù)難點。武漢堆焊</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢堆焊,堆焊" src="http://tyunfile.71360.com/UploadFile/ztzdhsb/637193826611796875/8664117.jpg"></div><p style="text-indent:25px"> 在堆焊過程中，焊炬除了按上述方法作階梯式的向前移動外，還需沿著堆焊面作橫向擺動，這樣可以提高堆焊層的均勻性和平整度。每堆焊一層可得到2～3mm厚的堆焊層，每層連續(xù)一次堆焊好。如果需要得到更厚的堆焊層，則須多層堆焊，層間須用砂輪或鋼絲刷進行清理和平整，而后再堆焊下一層。根據(jù)需要可以用火焰重新熔化堆焊層（重熔），以減少堆焊層金屬的缺點，提高堆焊層質(zhì)量。（3）堆焊時，焊絲的熔化端、熔池必須始終處于“三倍乙炔過剩焰”的保護之中，使它們與空氣隔絕。不得將焊炬急速地從熔池表面移開。堆焊搭接時，應(yīng)使接頭重疊15～20mm，收尾時須將焊炬繼續(xù)前移40～50mm，焊炬逐漸抬起，火焰逐漸離開熔池，使熔池逐漸縮小。這樣，接頭處的冷卻速度緩慢，不至于產(chǎn)生接頭疏松、縮孔、火口裂紋等缺點。火焰收口在環(huán)縫的內(nèi)側(cè)為好，這樣可以減少堆焊接頭的收縮應(yīng)力。等離子粉末堆焊是以等離子弧作為熱源，應(yīng)用等離子弧產(chǎn)生的高溫將合金粉末與基體表面迅速加熱并一起熔化、混合、擴散、凝固，等離子束離開后自激冷卻，形成一層高性能的合金層，從而實現(xiàn)零件表面的強化與硬化的堆焊工藝。溫州自動堆焊技術(shù)堆焊設(shè)備是怎么樣的體驗？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢堆焊,堆焊" src="http://tyunfile.71360.com/UploadFile/ztzdhsb/637193826680039062/9979750.jpg"></div><p style="text-indent:25px"> (1)離子氣和保護氣離子氣是等離子弧的工作氣體,對電弧起壓縮作用,并對鎢極和熔池起保護作用。離子氣流量過大,對電弧壓媚過強,增加電弧剛度,使熔深增加,基體沖淡率加大。離子氣過小,電弧無力,等離子弧不穩(wěn),試驗時選擇300400L/h保護氣是保護熔池不被氧化的氬氣流,在電弧周圍呈圓錐狀,其致密度直接影響熔池的保護效果。試驗時選擇750~850L/h離子氣和保護氣均采用工業(yè)用純(含氬99%)。(2)轉(zhuǎn)移弧電流與電壓排絲等離子弧堆焊的非轉(zhuǎn)移弧只起過渡引燃轉(zhuǎn)移弧作用,轉(zhuǎn)移弧引燃后即被切斷。因此轉(zhuǎn)移弧電流規(guī)范是保證堆焊質(zhì)量的主要工藝參數(shù)。電流過小,堆焊金屬與基體得不到良好的冶金結(jié)合。電流過大,自磁壓縮性增大,熔池溫度過高,熱量增加,因而使基體熔深和沖淡率增加。試驗選用電流為180~230A。轉(zhuǎn)移弧電壓受鎢極與工件之間距離影響距離大則電壓高,反之亦然。轉(zhuǎn)移弧電壓過低,電弧軟弱無力,穿透力小,易形成未焊透缺點。一般選為35~40V。</p><p> 等離子熔覆又稱等離子堆焊技術(shù),它是以等離子弧作為熱源,采用合金粉末作填充金屬,將合金粉末與基體表面一起加熱熔化形成合金層的一種堆焊工藝方法?？梢愿鶕?jù)工況不同，選用鎳基合金、鈷基合金、鐵基合金等不同類型的合金粉末進行熔覆過程。下面解說一下，等離子熔覆鎳基碳化鎢的工藝。 </p> <p> <br /> </p> <p> 生產(chǎn)設(shè)備：等離子粉末堆焊機+自動化設(shè)備； </p> <p> <br /> </p> <p> 熔覆目的：主要是耐磨，兼具有耐腐蝕性能； </p> <p> <br /> </p> <p> 硬度指標(biāo)：不同熔覆材料，硬度指標(biāo)不一樣，大約硬度指標(biāo)范圍為HRC58-65； </p> <p> <br /> </p> <p> 基體材料：可選用不銹鋼、碳鋼、合金鋼等； </p> <p> <br /> </p> <p> 熔覆材料：可選用碳化鎢含量為8%-60%的鎳基合金 </p> <p> <br /> </p> <p> 焊前處理：工件預(yù)熱400℃，時間兩小時； </p> <p> <br /> </p> <p> 焊后處理：焊后400℃保溫兩小時，再用保溫棉或保溫沙繼續(xù)保溫，緩降溫度，消除應(yīng)力； </p> <p> <br /> </p> <p> 結(jié)合強度：等強結(jié)合，可保證熔覆層在數(shù)百兆帕的壓力下不出現(xiàn)脫落； </p> <p> <br /> </p> <p> 稀釋率：5%-10%。 </p> <p> <br /> 上海堆焊的發(fā)展方向是什么？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="武漢堆焊,堆焊" src="http://tyunfile.71360.com/UploadFile/ztzdhsb/637193826627910156/9593609.jpg"></div><p style="text-indent:25px"> 關(guān)于焊接電流在等離子堆焊過程中，**重要的工藝參數(shù)是焊接電流，隨著焊接電流的增加，等離子弧能量增大，熔化和穿透能力增加。在堆焊過程中如果電流過小，填充金屬不易熔化，堆焊層與工件無法形成良好的冶金結(jié)合，電弧不穩(wěn)定，容易造成氣孔、夾雜及未熔合等多種缺點。反之，如果電流過大，工件熔化過較多，在增加稀釋率的同時，增加了堆焊材料的燒損，降低堆焊層硬度；此外，由于較大的熱輸入量，工件還易燒穿焊壞，造成保護不良、氧化物多、咬邊等嚴重的焊接缺點，影響堆焊質(zhì)量。焊接電流主要根據(jù)工件材料及堆焊速度和焊粉種類來選定的，電流過大過小都會影響焊后性能。此外，較大的焊接電流還可能引起雙弧現(xiàn)象。因此，在選定焊鎗及噴嘴的結(jié)構(gòu)后，焊接電流只能限定在一定范圍之內(nèi)，而這個范圍是與其他焊接參數(shù)，如等離子氣流量和焊接速度等參數(shù)相關(guān)。在設(shè)定了其他堆焊參數(shù)后，焊接電流和焊接速度的對應(yīng)關(guān)系：焊接速度增加，相應(yīng)焊接電流也須增加；反之，焊接速度降低，焊接電流要減小，當(dāng)?shù)入x子氣流量增加時，焊接電流要減小；反之，當(dāng)?shù)入x子氣流量減小時，焊接電流須增加。上海堆焊的產(chǎn)品培訓(xùn)怎么樣的？溫州三偏心蝶閥堆焊原理</p><p style="text-indent:25px">上海堆焊未來的發(fā)展方向是什么？武漢堆焊</p><p style="text-indent:25px"> 一體機介紹（ZT-PTAQ400-Z2）：該機采用立柜式外形；集等離子電源、送粉器、制冷循環(huán)水箱、等離子焊***、焊接操作室為一體，外形尺寸為:2000(長)×1200(寬)×1800(高)。該機由自動化控制系統(tǒng)單元、等離子堆焊機單元、冷凍式循環(huán)供水單元、堆焊操作室等部分組成。正面左側(cè)為觸摸屏操作面板，右側(cè)為自動化堆焊工裝操作室。操作室正面配置遮弧光玻璃觀察窗。堆焊操作室有固定在機架上的小型“十”字型直線滑軌操作機，由水平滑軌、縱向滑軌、升降滑軌及旋轉(zhuǎn)變位機組合而成。由送粉器、等離子粉末焊***組成的堆焊機頭，安裝在升降滑軌滑板上，由滾珠絲桿傳動，步進電機驅(qū)動，堆焊機頭可以升降，并隨水平滑軌滑板可在水平方向移動。焊***在橫向(水平X向)和垂直方向(Z向)的移動通過PLC設(shè)定可精確定位，堆焊開始時焊***自動移動到工作位，堆焊完畢焊***自動退回到空位（停機位），實現(xiàn)高精度自動化堆焊?？刹僮餍院?，無任何焊接經(jīng)驗者即可在短時間內(nèi)操作設(shè)備。武漢堆焊</p><p style="text-indent:25px">箴拓自動化設(shè)備（上海）有限公司屬于機械及行業(yè)設(shè)備的高新企業(yè)，技術(shù)力量雄厚。箴拓自動化設(shè)備是一家有限責(zé)任公司（國有）企業(yè)，一直貫徹“以人為本，服務(wù)于社會”的經(jīng)營理念;“質(zhì)量高速，誠守信譽，持續(xù)發(fā)展”的質(zhì)量方針。公司始終堅持客戶需求***的原則，致力于提供高質(zhì)量的[ "等離子熔覆堆焊", "等離子噴焊", "自動化堆焊設(shè)備", "激光熔覆" ]。箴拓自動化設(shè)備順應(yīng)時代發(fā)展和市場需求，通過**技術(shù)，力圖保證高規(guī)格高質(zhì)量的[ "等離子熔覆堆焊", "等離子噴焊", "自動化堆焊設(shè)備", "激光熔覆" ]。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/745651.html</p></div></div></div></div></div><div id="q2a2yhd" 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