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id="zf8t4jh" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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>?浙江模具焊絲廠歡迎咨詢簡(jiǎn)敏精密五金制造供應(yīng)</p><div id="a8kypvr" class="leftbox clearfix"><h1>浙江模具焊絲廠歡迎咨詢簡(jiǎn)敏精密五金制造供應(yīng)</h1><div id="3ghoza7" class="proBig"><div id="8u7dars" 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="eeh8vri" 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="xu2pdeu" 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>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>浙江模具焊絲廠,焊絲</p><p><span>***更新：</span>2020-10-21 01:09:15</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="c7kqqct" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">簡(jiǎn)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(wǎng)址: </span></p><p><span>手機(jī): </span>021-69726282</p><p><span>地址: </span>顧北東路365號(hào)C區(qū)1101</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="aslmiuv" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="nlizkqc" class="box"><p><p> 圖3—10硅整流電弧焊機(jī)1—硅整流器組2—三相變壓器3—三相磁飽和電抗器4—輸出電抗器5—通風(fēng)機(jī)組(二)工作原理工作原理見(jiàn)圖3—11。接通開(kāi)關(guān)K1，通風(fēng)機(jī)組FM運(yùn)轉(zhuǎn)，風(fēng)壓開(kāi)關(guān)KEY閉合，主接觸器Jc-1閉合，三相弧焊變壓器B1工作。與此同時(shí)Jc-2閉合，控制變壓器B2工作，磁放大器運(yùn)行，硅整流器工作，輸出一定的直流電壓，這就是焊機(jī)的空載電壓。由于沒(méi)有焊接電流，磁放大器的電抗繞組FD電抗壓降幾乎為零，使焊機(jī)輸出端具有較高的空載電壓，便于引弧。當(dāng)施焊時(shí)，由于有輸出，形成電流，電抗繞組FD通過(guò)交流電，使其得到較大的電抗壓降，并隨電流的增大，電抗壓降隨之增大，從而得到陡降外特性，浙江模具焊絲廠，浙江模具焊絲廠。當(dāng)短路時(shí)，由于短路電流很大，F(xiàn)D通過(guò)的交流電急增，它產(chǎn)生的電抗壓降使工作電壓幾乎接近于零，這就限制了短路電流。圖3—11ZXG—300型硅整流電焊機(jī)電氣原理圖改變控制回路磁盤電阻R10，使磁放大器控制繞組FK中直流電發(fā)生變化，鐵芯中的磁通就相應(yīng)發(fā)生變化，浙江模具焊絲廠，從而改變了磁放大器交流繞組FD的電流。為減少網(wǎng)路電壓波動(dòng)對(duì)焊接的影響，在控制回路中采用了鐵磁諧振式穩(wěn)壓器，以保證激磁電流的穩(wěn)定，減少對(duì)焊接電流的影響。按動(dòng)K2，通風(fēng)機(jī)組FM停止工作，風(fēng)壓開(kāi)關(guān)KEY開(kāi)啟，主接觸器Jc-1斷開(kāi)。自保護(hù)藥芯焊絲，是在氣保護(hù)藥芯焊絲問(wèn)市不久，便被發(fā)展出來(lái)，也很快的被工業(yè)界廣為認(rèn)同于特定的用途上。浙江模具焊絲廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/676197.png"></div><p> 1、焊接方法板狀仰焊的焊接有2種方法：連弧法及熄弧法。連弧法是通過(guò)連續(xù)而有規(guī)則地?cái)[動(dòng)焊條進(jìn)行短弧施焊的操作方法；熄弧法是在封底焊時(shí)采用電弧燃燒一定時(shí)即行熄滅，然后再引燃、再熄滅，從而使熔池金屬迭加成形的方法。這2種方法各有所長(zhǎng)。熄弧法可以保證封底焊縫有良好的成形，能有效地控制焊縫下垂、頂面內(nèi)凹，缺點(diǎn)是由于焊接過(guò)程處于間斷狀態(tài)，容易出現(xiàn)氣孔、夾渣等缺點(diǎn)。連弧法可以使焊接過(guò)程連續(xù)化，能夠有效地保證焊接質(zhì)量，但操作方法不當(dāng)將會(huì)造成焊縫下垂，表面內(nèi)凹。比較2種焊接方法，連弧焊更值得推廣。在一些工業(yè)發(fā)達(dá)國(guó)家，如德國(guó)、美國(guó)、日本等，生產(chǎn)中都要求采用這種焊接方法。2試板及工藝要求試板要求試板材質(zhì)為Q235B，規(guī)格為100mm×12mm×300mm。采用E5015（J507）焊條，焊接位置為仰焊，要求單面焊雙面成形。坡口形式如圖1所示。焊接工藝參數(shù)焊接工藝參數(shù)見(jiàn)表1。表1焊接工藝參數(shù)焊條角度施焊過(guò)程中焊條與焊接方向的夾角如圖2所示。3、焊接操作要點(diǎn)封底層的焊接對(duì)整個(gè)試板而言，封底層的焊接是關(guān)鍵，在焊接過(guò)程中，焊接熔池金屬的自身重力在電弧作用力和液態(tài)金屬的表面張力作用下處于平衡狀態(tài)。具體操作是地。蘇州NH45R焊絲銷售廠焊絲主要用于二氧化碳?xì)怏w保護(hù)焊、埋弧焊和電渣焊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685263672/7237309.png"></div><p> 第三節(jié)焊條電弧焊與電弧切割設(shè)備的基本結(jié)構(gòu)和工作原理圖3—6焊機(jī)分類焊條電弧焊所用焊機(jī)按電源的種類可分為交流弧焊機(jī)和直流弧焊機(jī)兩大類。其中直流弧焊機(jī)按變流的方式不同又分為：弧焊整流器、逆變弧焊機(jī)和旋轉(zhuǎn)式直流弧焊發(fā)電機(jī)(現(xiàn)已淘汰)等。每一類型的焊機(jī)根據(jù)原理和結(jié)構(gòu)特點(diǎn)又可分為多種型式，具體見(jiàn)圖3—6一、交流弧焊機(jī)(一)結(jié)構(gòu)交流弧焊機(jī)的三個(gè)類別的結(jié)構(gòu)分別如圖3—7～圖3—9所示。圖3—7BX1—330交流弧焊機(jī)1—初級(jí)繞組；2、3—次級(jí)繞組；4—?jiǎng)予F芯；5—靜鐵芯；6—接線板；7—搖把圖3—8BX2—500型(同體式)焊機(jī)結(jié)構(gòu)示意圖1—固定鐵心2—初級(jí)繞組3—次級(jí)繞組4—電抗線圈5—活動(dòng)鐵心圖3—9BX3—300型(動(dòng)圈式)焊機(jī)結(jié)構(gòu)示意圖1—初級(jí)線圈2—次級(jí)線圈3—鐵心(二)工作原理目前應(yīng)用*****的“動(dòng)鐵式”交流焊機(jī)如圖3—7所示。它是一個(gè)結(jié)構(gòu)特殊的降壓變壓器，屬于動(dòng)鐵芯漏磁式類型。焊機(jī)的空載電壓為60～70V。工作電壓為30V，電流調(diào)節(jié)范圍為50～450A。鐵芯由兩側(cè)的靜鐵芯5和中間的動(dòng)鐵芯4組成，變壓器的次級(jí)繞組分成兩部分，一部分緊繞在初級(jí)繞組1的外部，另一部分繞在鐵芯的另一側(cè)。前一部分起建立電壓的作用，后一部分相當(dāng)于電感線圈。焊接時(shí)。</p><p> 注：1、直徑不大于、E5015、E5016和E5018型焊條及直徑不大于，可適用于立焊和仰焊。2、E4322型焊條適宜單道焊。焊條型號(hào)舉例如下：例14、焊條的選用（1）結(jié)構(gòu)鋼（低碳鋼、中碳鋼、普通低合金鋼）焊條的選用采用結(jié)構(gòu)鋼制造的焊接結(jié)構(gòu)，大多要求焊縫金屬與母材等強(qiáng)度，此時(shí)可按結(jié)構(gòu)鋼的強(qiáng)度選擇相應(yīng)強(qiáng)度等級(jí)的焊條。選擇時(shí)應(yīng)注意以下兩點(diǎn)：1）鋼材的強(qiáng)度等級(jí)是按屈服點(diǎn)劃分的，而結(jié)構(gòu)鋼焊條的強(qiáng)度等級(jí)系指其抗拉強(qiáng)度的比較低保證值，兩者是不一致的。通常應(yīng)選擇抗拉強(qiáng)度保證值與母材相同或稍高的焊條。2）焊縫強(qiáng)度不是比母材高出愈多愈好，而應(yīng)等于或稍高于母材。如果焊縫強(qiáng)度過(guò)高，往往使焊縫的塑性下降，反而有害。當(dāng)焊接接頭不要求焊縫與其等強(qiáng)度時(shí)，可選用抗拉強(qiáng)度較低的焊條。（2）合金結(jié)構(gòu)鋼焊條的選用合金結(jié)構(gòu)鋼焊接時(shí)，通常均不要求焊縫金屬的合金成分與該鋼種的合金成分相同或相近，而主要考慮等強(qiáng)度。但如果母材是耐熱鋼、耐腐蝕鋼時(shí)，從保證焊接接頭的耐熱、耐腐蝕性能出發(fā)，則要求焊縫金屬的主要合金成分與母材相同或相近。此時(shí)，應(yīng)根據(jù)母材的化學(xué)成分選用焊條。（3）根據(jù)母材抗裂性要求選用焊條母材成分中，如果含C或S、P等雜質(zhì)較高時(shí)，很容易在焊縫中形成裂紋。非常適合鑄造件缺點(diǎn)，零件表面拉傷、磨損，模具缺點(diǎn)的修復(fù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江模具焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 使氣孔消除，并且不會(huì)留引弧傷痕。為了保證焊縫起點(diǎn)處能夠焊透，焊條可作適當(dāng)?shù)臋M向擺動(dòng)，并在坡口根部?jī)蓚?cè)稍加停頓，以形成一定大小的熔池。引弧點(diǎn)的選擇引弧對(duì)焊接質(zhì)量有一定的影響，經(jīng)常因?yàn)橐〔缓枚斐墒己傅娜秉c(diǎn)。綜上所述，在引弧時(shí)應(yīng)做到以下幾點(diǎn)：(1)工件坡口處無(wú)油污、銹斑，以免影響導(dǎo)電能力和防止熔池產(chǎn)生氧化物。(2)在接觸時(shí)，焊條提起時(shí)間要適當(dāng)。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(wú)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(yīng)在使用前用銼刀加工，防止在引弧時(shí)，碰擊過(guò)猛使藥皮成塊脫落，引起電弧偏吹和引弧瞬間保護(hù)不良。(4)引弧位置應(yīng)選擇適當(dāng)，開(kāi)始引弧或因焊接中斷重新引弧，一般均應(yīng)在離始焊點(diǎn)后面10～20mm處引弧，然后移至始焊點(diǎn)，待熔池熔透再繼續(xù)移動(dòng)焊條，以消除可能產(chǎn)生的引弧缺點(diǎn)。(二)運(yùn)條電弧引燃后，就開(kāi)始正常的焊接過(guò)程。為獲得良好的焊，縫成形，焊條得不斷地運(yùn)動(dòng)。焊條的運(yùn)動(dòng)稱為運(yùn)條。運(yùn)條是電焊工操作技術(shù)水平的具體表現(xiàn)。焊縫質(zhì)量的優(yōu)劣、焊縫成形的好壞，主要由運(yùn)條來(lái)決定。運(yùn)條由三個(gè)基本運(yùn)動(dòng)合成。實(shí)芯焊絲的分類及特點(diǎn) 實(shí)芯焊絲是目前**常用的焊絲,由熱軋線材經(jīng)拉拔加工而成。蘇州NH45R焊絲銷售廠</p><p style="text-indent:25px">?自保護(hù)藥芯焊絲，是在氣保護(hù)藥芯焊絲問(wèn)市不久，便被發(fā)展出來(lái)，也很快的被工業(yè)界廣為認(rèn)同于特定的用途上。浙江模具焊絲廠</p><p> A502不銹鋼焊條符合GBE16-25MoN-16說(shuō)明:A502是鈦鈣型藥皮的純奧氏體Cr16Ni25Mo6不銹鋼焊條。交直流兩用。用途:用于焊接淬火狀態(tài)下的低合金和中合金鋼、異種鋼及剛性較大的結(jié)構(gòu)以及相應(yīng)的熱強(qiáng)鋼等。如淬火狀態(tài)下的30CrMnSi以及不銹鋼、碳鋼及異種鋼焊接。A507不銹鋼焊條符合GBE16-25MoN-15說(shuō)明:A507是堿***皮的純奧氏體Cr16Ni25Mo6不銹鋼焊條。采用直流反接，可進(jìn)行全位置焊接。用途:用于焊接淬火狀態(tài)下的低合金和中合金鋼、異種鋼及剛性較大的結(jié)構(gòu)，以及相應(yīng)的熱強(qiáng)鋼等。如淬火狀態(tài)下的30CrMnSi、不銹鋼和碳鋼焊接等。A607不銹鋼焊條符合GBE330MoMnWNb-15說(shuō)明:A607是堿***皮的純奧氏體Cr16Ni35不銹鋼焊條，因焊條中加入強(qiáng)化元素，故具有良好的高溫性能。采用直流反接，可進(jìn)行全位置焊接。用途:用于在850-900℃高溫條件下工作的同類型不銹鋼材料的焊接，以及制氫轉(zhuǎn)化爐中**管和膨脹管（如Cr20Ni32和Cr18Ni37材料）的焊接。A902不銹鋼焊條符合GBE320-16相當(dāng)AWSE320-16說(shuō)明:A902是鈦鈣型藥皮的不銹鋼焊條，交直流兩用。具有優(yōu)異的耐腐蝕性和較強(qiáng)的抗氧化能力。在化工、石油和制氫等制造、安裝工程中廣泛應(yīng)用，還可作異種鋼焊接材料。浙江模具焊絲廠</p><p style="text-indent:25px">簡(jiǎn)敏精密五金制造(上海)有限公司總部位于顧北東路365號(hào)C區(qū)1101，是一家精密五金、普通機(jī)械設(shè)備加工(限分支機(jī)構(gòu)經(jīng)營(yíng))、銷售;模具加工(限分支機(jī)構(gòu)經(jīng)營(yíng))及維修;工業(yè)設(shè)備、包裝材料、焊材、五金配件的加工(以上限分支機(jī)構(gòu)經(jīng)營(yíng))、銷售;工業(yè)自動(dòng)化設(shè)備安裝及維修(除特種設(shè)備);自行車及配件(電動(dòng)自行車按本市產(chǎn)品目錄經(jīng)營(yíng))、蓄電池、橡膠制品、電動(dòng)工具、焊接材料、汽車配件、金屬材料、鋼材、建材的批發(fā)兼零售。的公司。簡(jiǎn)敏五金制造擁有一支經(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)著為客戶提供模具焊條，模具焊絲，特種焊絲，特種焊條。簡(jiǎn)敏五金制造繼續(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。簡(jiǎn)敏五金制造始終關(guān)注五金、工具行業(yè)。滿足市場(chǎng)需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1637040.html</p></div></div></div></div></div><div id="dlxtvri" class="page-right twoColRt"><div id="q2ipb2q" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7a2p28i" class="recomPic likePro"><a 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