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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="sr8bvh8" class="twoCol"><div id="mq32l9z" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</a>?<a href="http://www.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/second-wjgj_hjclyfjqh/">焊接材料與附件</a>?<a href="http://www.cdcfah.com/cp/third-hjclyfjqh_hansi/">焊絲</a>?福建焊絲生產廠歡迎來電簡敏精密五金制造供應</p><div id="z3zrikr" class="leftbox clearfix"><h1>福建焊絲生產廠歡迎來電簡敏精密五金制造供應</h1><div id="fuln23a" class="proBig"><div id="xr8f3ev" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/676197.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3w7lqce" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/676197.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mbdk2xu" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>福建焊絲生產廠,焊絲</p><p><span>***更新：</span>2020-07-17 20:21:52</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="oyfhoq8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">簡敏精密五金制造(上海)有限公司</a></p><p><span>聯(lián)系人：</span>龔先生</p><p><span>郵箱: </span></p><p><span>電話: </span>13818473006</p><p><span>傳真: </span>021_69726282</p><p><span>網址: </span></p><p><span>手機: </span>021-69726282</p><p><span>地址: </span>顧北東路365號C區(qū)1101</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="g8vspmt" class="page-proshow02"><p class="title">詳細說明</p><div id="e2elsum" class="box"><p><p> 焊前準備：大直徑厚壁管U形坡口的試件如下圖所示。材料為20鋼，其裝配及定位與第四章水平轉動焊條電弧焊相同。設備：焊條電弧焊的焊機為ZXG-400,埋弧焊焊機為MZ3-500,焊接調速滾輪架一臺，焊接操作架一臺。焊前清理與上述相同，焊劑、焊條須嚴格烘干。焊接參數焊接參數見下表，焊接電源極性釆用直流反接。焊接操作：打底層和填充層都采用焊條電弧焊，焊接操作與第四章第四節(jié)的大直徑管水平轉動焊相同。蓋面層采用埋弧焊，福建焊絲生產廠，焊劑為HJ431，其顆粒度為(14~60目）。采用直流反接。焊接蓋面層時，先預調節(jié)焊接參數，調節(jié)焊接機頭使焊嘴距離焊件20~30mm，下圖中的偏移量B為20~30mm，并使焊絲對準坡口的中心線，開啟焊劑漏斗，使焊劑堆在待焊區(qū)，由于管子表面曲率較大，福建焊絲生產廠，焊劑容易散失，為在焊接過程中更好地保護熔池，可在焊接區(qū)的前方加一如圖所示擋板或采取其它防止焊劑散失的措施。按下“啟動”按鈕，進行焊接，福建焊絲生產廠，并耳聽和觀察焊接過程，注意焊機的電流表和電壓表及調速滾輪的轉速表的指示，隨時進行調節(jié)，以保證焊接過程的穩(wěn)定。在焊完一周后須重疊一段焊縫，***按“停止”按鈕，熄弧后關閉焊劑漏斗。焊后清理與檢驗：用錘子、鋼絲刷***焊渣，并對收弧處進行修磨。線材表面亦需光滑平順且清潔否則將影響送絲的順暢及焊接電流的傳迅。福建焊絲生產廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建焊絲生產廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/676197.png"></div><p> 焊條介紹及1、焊芯及藥皮涂有藥皮的供手弧焊用的熔化電極，叫做焊條。焊條由藥皮和焊芯兩大部分所組成。焊條端部有一段沒有藥皮的夾持端，被焊鉗夾住后可以傳導電流（藥皮不導電），焊條末端的藥皮磨成錐形，便于焊接時引弧。焊條上端藥皮處印有該焊條的型號或牌號，以便焊工使用時識別。（1）焊芯碳素結構鋼和低合金結構鋼焊接用的焊條，其焊芯材料為低碳鋼。常用牌號為H08A，含義如下：H08A焊芯的化學成分，見表3-1。碳在焊接過程中會引起飛濺，并使焊縫產生氣孔和裂紋，所以必須限制焊芯中碳的含量。焊芯的長度與焊芯的直徑（即焊條的直徑）有關，見表3-2。焊芯直徑越細，電阻越大，焊接時由于電流通過焊芯所產生的電阻熱也越大，使藥皮發(fā)紅變質，所以其長度就越短。生產中常用的焊芯直徑是，，。（2）藥皮在焊接過程中藥皮的作用是：1）使電弧穩(wěn)定燃燒。2）產生熔渣和氣體，防止空氣中的氧、氮侵入焊縫金屬，以提高焊縫質量。3）產生的熔渣覆蓋在焊縫上，使焊縫表面成形良好。4）通過熔渣與熔化金屬之間的化學反應，能增加焊縫金屬中合金元素的含量，改善和提高焊縫金屬的力學性能。福建焊絲生產廠焊絲應放在木托盤上，不能將其直接放在地板或緊貼墻壁。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建焊絲生產廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265666699219/955806.png"></div><p> 按適用范圍不同，可分為斜三角形和正三角形兩種運條方法。其中斜三角形運條法適用于焊接T形接頭的仰焊縫和有坡口的橫焊縫。其特點是能夠通過焊條的擺動控制熔化金屬，促使焊縫成形良好。正三角形運條法*適用于開坡口的對接接頭和T形接頭的立焊。其特點是一次能焊出較厚的焊縫斷面，有利于提高生產率，而且焊縫不易產生夾渣等缺點。三角形運條法6)圓圈形運條法。如圖3—22所示，將焊條末端連續(xù)作圓圈運動，并不斷前進。這種運條方法又分正圓圈和斜圓圈兩種。正圓圈運條法只適于焊接較厚工件的平焊縫，其優(yōu)點是能使熔化金屬有足夠高的溫度，有利于氣體從熔池中逸出，可防止焊縫產生氣孔。斜圓圈運條法適用于T形接頭的橫焊(平角焊)和仰焊以及對接接頭的橫焊縫，其特點是可控制熔化金屬不受重力影響，能防止金屬液體下淌，有助于焊縫成形。圓圈形運條法(三)收尾電弧中斷和焊接結束時，應把收尾處的弧坑填滿。若收尾時立即拉斷電弧，則會形成比焊件表面低的弧坑。在弧坑處常出現(xiàn)疏松、裂紋、氣孔、夾渣等現(xiàn)象，因此焊縫完成時的收尾動作不*是熄滅電弧，而且要填滿弧坑。收尾動作有以下幾種：(1)劃圈收尾法。焊條移至焊縫終點時，作圓圈運動，直到填滿弧坑再拉斷電弧。</p><p> 不*能有效地保證焊縫的內在質量，而且可為蓋面層的焊接打好基礎。蓋面層的焊接蓋面層的焊接關系到試板焊縫的正面成形。焊縫余高、余高差、寬度、寬度差等項目都有具體要求，焊工一定要保持冷靜的心態(tài)，充分發(fā)揮技術水平，使正面焊縫高低平整，寬窄一致。蓋面層焊接時難度比較大的是控制咬邊量，多數選手因咬邊量超差嚴重而影響成績。該文章講述了焊條電弧焊仰焊試板的焊接.4、易產生的缺點及克服方法氣孔氣孔是**易產生的缺點，一旦出現(xiàn)表面氣孔，裁判會將試板判0分處***孔產生的原因是焊接過程中產生的氣體及熔池周圍的氣體被液態(tài)金屬吸收后，在凝固過程中溶解度急劇下降，氣體將會板出形成氣泡，上浮過程中如來不及逸出而殘留在焊縫金屬中就形成氣孔。防止產生氣孔的途徑：一是采用短弧施焊，防止有害氣體侵入熔池，以有效地保護熔池，另外可以縮短熔滴過渡的路程，減小其吸收氣體的可能性；二是選擇合理的工藝參數，在填充層和蓋面層焊接時焊接電源不可過大，因為焊接電流增大時，會促進熔滴細化，吸收氣體量也會增加，產生氣孔的可能性會隨之增大；三是試板坡口兩側及層間的鐵銹及污物應盡量***徹底，以減少產生氣孔的根源。夾渣在施焊過程中。按照“先進先出”的原則發(fā)放焊絲，盡量減少產品庫存時間。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建焊絲生產廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> A052不銹鋼焊條說明:A052是鈦鈣型藥皮的**碳Cr18Ni24Mo5不銹鋼焊條，其焊縫金屬具有耐含甲酸、醋酸介質點腐蝕及抗氯離子腐蝕性能，它比A022等焊條耐腐蝕性能為優(yōu)。具有優(yōu)良的焊接工藝性能，可交直流兩用。用途:用于化學耐硫.酸、醋酸、磷酸的反應器、分離器，同時可用于抗海水腐蝕用鋼（00Cr18Ni24Mo5）以及異種鋼的焊接。A062不銹鋼焊條符合GBE309L-16相當AWSE309L-16說明:A062是鈦鈣型藥皮的**碳Cr23Ni13不銹鋼焊條，可交直流兩用，由于含碳量低，故在不含Nb、Ti等穩(wěn)定劑時也能抵抗因碳化物析出而產生的晶間腐蝕。用途:用于合成纖維、石油化工等設備制造的相同類型的不銹鋼結構、復合鋼和異種鋼等構件，也可用于核反應堆、壓力容器內壁過渡層堆焊和塔內構件焊接。A101不銹鋼焊條符合GBE308-16相當AWSE308-16說明:A101是鈦型藥皮的Cr19Ni10不銹鋼焊條，可交直流兩用，施焊時藥皮具有不發(fā)紅、不開裂的特點，焊縫金屬具有良好的力學性能及抗晶間腐蝕性能，特別適宜于薄板平焊。用途:用于工作溫度低于300℃的Cr19Ni9及Cr19Ni11Ti的不銹鋼薄板結構的焊接。特色A102不銹鋼焊條特色符合GBE308-16相當AWSE308-16說明:A102是鈦鈣型藥皮的Cr19Ni10不銹鋼焊條。?焊絲的表面不涂防氧化作用的焊劑。福建焊絲生產廠</p><p style="text-indent:25px">在氣焊和鎢極氣體保護電弧焊時，焊絲用作填充金屬。福建焊絲生產廠</p><p> 使氣孔消除，并且不會留引弧傷痕。為了保證焊縫起點處能夠焊透，焊條可作適當的橫向擺動，并在坡口根部兩側稍加停頓，以形成一定大小的熔池。引弧點的選擇引弧對焊接質量有一定的影響，經常因為引弧不好而造成始焊的缺點。綜上所述，在引弧時應做到以下幾點：(1)工件坡口處無油污、銹斑，以免影響導電能力和防止熔池產生氧化物。(2)在接觸時，焊條提起時間要適當。太快，氣體未電離，電弧可能熄滅；太慢，則使焊條和工件粘合在一起，無法引燃電弧。(3)焊條的端部要有裸露部分，以便引弧。若焊條端部裸露不均，則應在使用前用銼刀加工，防止在引弧時，碰擊過猛使藥皮成塊脫落，引起電弧偏吹和引弧瞬間保護不良。(4)引弧位置應選擇適當，開始引弧或因焊接中斷重新引弧，一般均應在離始焊點后面10～20mm處引弧，然后移至始焊點，待熔池熔透再繼續(xù)移動焊條，以消除可能產生的引弧缺點。(二)運條電弧引燃后，就開始正常的焊接過程。為獲得良好的焊，縫成形，焊條得不斷地運動。焊條的運動稱為運條。運條是電焊工操作技術水平的具體表現(xiàn)。焊縫質量的優(yōu)劣、焊縫成形的好壞，主要由運條來決定。運條由三個基本運動合成。福建焊絲生產廠</p><p style="text-indent:25px">簡敏精密五金制造(上海)有限公司注冊資金100-200萬元，是一家擁有51~100人***員工的企業(yè)。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下[ "模具焊條", "模具焊絲", "特種焊絲", "特種焊條" ]深受客戶的喜愛。公司從事五金、工具多年，有著創(chuàng)新的設計、強大的技術，還有一批**的專業(yè)化的隊伍，確保為客戶提供質量的產品及服務。截止當前，我公司年營業(yè)額度達到1000-2000萬元，爭取在一公分的領域里做出一公里的深度。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/632252.html</p></div></div></div></div></div><div id="hwtqxub" class="page-right twoColRt"><div id="hmjgyfh" class="box01 margin10 clearfix"><h3><a 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