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class="home-main container clearfix"><div id="lwihtkh" class="twoCol"><div id="tcz7qxz" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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>?南京模具焊條焊絲歡迎來電簡敏精密五金制造供應(yīng)</p><div id="zy2fmdz" class="leftbox clearfix"><h1>南京模具焊條焊絲歡迎來電簡敏精密五金制造供應(yīng)</h1><div id="j7dk2as" class="proBig"><div id="7qujdew" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275546289062/980359.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="faxjahd" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275546289062/980359.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wewy7ul" 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>南京模具焊條焊絲,焊條焊絲</p><p><span>***更新：</span>2021-01-17 05:04:48</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="udkmtax" 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(wǎng)址: </span></p><p><span>手機(jī): </span>021-69726282</p><p><span>地址: </span>顧北東路365號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="sgn7fcz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sbnugc3" class="box"><p><p> 控制層間溫度對避免產(chǎn)生晶問腐蝕及熱裂紋尤為重要，并可控制焊縫根部的氧化，因此焊接時應(yīng)盡量選用小線能量快速焊。層間溫度應(yīng)控制在50~60℃。焊接工藝參數(shù)焊接前將坡口內(nèi)外邊緣10~20mm處焊件表面的油污、水、銹等清理干凈，露出金屬光澤。焊接工藝參數(shù)的選擇，見表4所示。2、焊縫外觀檢驗(yàn)及性能試驗(yàn)焊縫外觀成形良好，尤其是焊縫背面成形美觀，無焊瘤、未熔合、未焊透等缺點(diǎn)。射線檢測按照J(rèn)B/T4730《承壓設(shè)備無損檢測》標(biāo)準(zhǔn)進(jìn)行，II級及以上為合格，經(jīng)評定為合格。力學(xué)性能試驗(yàn)按GB/T228和GB/T2653規(guī)定的試驗(yàn)方法，對焊接接頭試樣進(jìn)行了拉伸試驗(yàn)和彎曲試驗(yàn)，拉伸實(shí)驗(yàn)結(jié)果如表5所示，彎曲試驗(yàn)結(jié)果如表6所示。實(shí)驗(yàn)結(jié)果為合格。3、焊接操作要領(lǐng)不銹鋼藥芯焊絲是利用焊絲中間的藥粉熔化后，在熔敷金屬背面和正面形成熔渣進(jìn)行保護(hù)，所以根部焊接時與實(shí)芯焊絲焊接的操作方法、電弧擺動頻率、填絲量有較大區(qū)別。（1）在焊接過程中，焊要做圓弧形擺動,其目的是使鐵水和熔渣加速分離，便于觀察熔池，同時也可增加母材坡口兩側(cè)的熱輸入量，防止出現(xiàn)單邊未熔合。在填充焊絲時，南京模具焊條焊絲，應(yīng)將焊絲送到熔池根部并向下輕壓一下，以保證根部熔透及根部內(nèi)成形。，南京模具焊條焊絲。?焊絲溫度不會持續(xù)上升至其整段發(fā)紅，南京模具焊條焊絲，抗紅能力***。南京模具焊條焊絲</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京模具焊條焊絲,焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275546289062/980359.png"></div><p> 保溫緩冷至室溫。力學(xué)性能試驗(yàn)結(jié)果如表10所示。（4）藥芯焊絲試驗(yàn)依據(jù)ISO18276：2005《焊接材料——**度鋼氣保護(hù)和自保護(hù)藥芯焊絲——分類》標(biāo)準(zhǔn)進(jìn)行試驗(yàn)。焊接工藝：預(yù)熱溫度為120℃，道間溫度為120～150℃；焊接電流為230～250A，電弧電壓為24～28V，保護(hù)氣體為80%Ar+20%CO2混合氣體保護(hù)。多道焊時，先焊坡口兩側(cè)的焊縫，再焊中間的焊縫。焊后用石棉布覆蓋，保溫緩冷至室溫。試驗(yàn)時實(shí)際的焊接熱輸入：MF745B為～，MF1100M為～。試驗(yàn)結(jié)果如表11、表12所示。試驗(yàn)結(jié)果分析：①M(fèi)F745B藥芯焊絲熔敷金屬中Cr的含量偏高，屈服強(qiáng)度明顯偏低，低溫沖擊韌性略低于標(biāo)準(zhǔn)要求。力學(xué)性能不理想，除與成分有關(guān)外，還可能與焊接熱輸入偏大有關(guān)。②MF1100M藥芯焊絲的化學(xué)成分和力學(xué)性能基本符合標(biāo)準(zhǔn)要求，但屈服強(qiáng)度稍低。表7Q960E的化學(xué)成分（質(zhì)量分?jǐn)?shù)）（%）表8Q960E的力學(xué)性能項(xiàng)目Re/MPaRm/MPaA（%）KV2（-40℃）/J標(biāo)準(zhǔn)值≥960980～1150≥10≥27典型值，76，57表9Mn4Ni2CrMo和okAristRod89焊絲的化學(xué)成分（質(zhì)量分?jǐn)?shù)）（%）成分CSiMnPSCrMoNiCuV其他標(biāo)準(zhǔn)值≤～～≤≤～～～≤≤≤Mn4Ni2-CrMoOk89—表10Mn4Ni2CrMo和okAristRod89熔敷金屬力學(xué)性能項(xiàng)目Re/MPaRm/MPaA（%）KV2。南京模具焊條焊絲?二氧化碳?xì)怏w保護(hù)電弧焊（簡稱CO2焊）的保護(hù)氣體是二氧化碳（有時采用CO2+O2的混合氣體）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京模具焊條焊絲,焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265664882812/4463123.png"></div><p> 通過外力很快就形成小部份短路移動工件上去，由于熔化得少，工件與之相比大很多。溫度很快就散發(fā)掉了。焊絲溫度不會持續(xù)上升至其整段發(fā)紅，抗紅能力***。與普通焊絲相比，如果持續(xù)時間過長，就會出現(xiàn)焊絲嚴(yán)重發(fā)紅，焊點(diǎn)發(fā)黑現(xiàn)象。就算能焊，焊補(bǔ)的時候，容易出現(xiàn)氧化，掉渣，焊不高等現(xiàn)象.，并且影響其后續(xù)加工。焊絲CO2焊編輯二氧化碳?xì)怏w保護(hù)電弧焊（簡稱CO2焊）的保護(hù)氣體是二氧化碳（有時采用CO2+O2的混合氣體）。由于二氧化碳?xì)怏w的0熱物理性能的特殊影響，使用常規(guī)焊接電源時，焊絲端頭熔化金屬不可能形成平衡的軸向自由過渡，通常需要采用短路和熔滴縮頸爆斷、因此，與MIG焊自由過渡相比，飛濺較多。但如采用質(zhì)量焊機(jī)，參數(shù)選擇合適，可以得到很穩(wěn)定的焊接過程，使飛濺降低到**小的程度。由于所用保護(hù)氣體價格低廉，采用短路過渡時焊縫成形良好，加上使用含脫氧劑的焊絲即可獲得無內(nèi)部缺點(diǎn)的高質(zhì)量焊接接頭。因此這種焊接方法目前已成為黑色金屬材料**重要焊接方法之一。CO2立焊雙面成形焊絲型號編輯常用的焊絲型號：常見的氣體保護(hù)藥芯焊絲有：LQ122、LQ172、LQ212、LQ337、LQ423、LQ439、LQ451、LQ537、LQ582、LQ585、LQ605、LQ621、LQ666、LQ707等。</p><p> 成份優(yōu)良材料內(nèi)部組.織均勻，硬度穩(wěn)定，而且耐磨性、韌性、耐高溫等...。特性皆比一般同等級之材料為佳。氮化零件焊補(bǔ)焊絲>～HB～300適用于氮化后模具，零件表面修補(bǔ)。焊絲鑄造類有些合金，如鈷鉻鎢合金，不能鍛、軋和拔絲，而用鑄造方法制成。它主要用于工件表面的手工堆焊，以滿足如抗氧化、耐磨損和高溫下耐腐蝕等特殊性能要求。采用連續(xù)澆注和液態(tài)擠壓可制造出長達(dá)數(shù)米的鈷鉻鎢焊絲，用于自動填絲鎢極氣體保護(hù)電弧焊，以提高焊接效率和堆焊層質(zhì)量，同時還能改善勞動條件。鑄鐵補(bǔ)焊有時也采用鑄造焊絲。焊絲藥芯類用薄鋼帶卷成圓形或異形鋼管，內(nèi)填一定成分的藥粉，經(jīng)拉制成的有縫藥芯焊絲，或用鋼管填滿藥粉拉制成的無縫藥芯焊絲（見圖）。用這種焊絲焊接熔敷效率高，對鋼材適應(yīng)性好，試制周期短，因而它的使用量和使用范圍不斷擴(kuò)大。這種焊絲主要用于二氧化碳?xì)怏w保護(hù)焊、埋弧焊和電渣焊。藥芯焊絲中的藥粉成分一般與焊條藥皮相似。含有造渣、造氣和穩(wěn)弧成分的藥芯焊絲焊接時不需要保護(hù)氣體，稱自保護(hù)藥芯焊絲，適用于大型焊接結(jié)構(gòu)工程的施工。早在1950年代初氣保護(hù)藥芯焊絲便已開始開發(fā)問市，但至1957年才開始廣為商業(yè)上使用。此種方法可說是取自埋弧焊與CO2焊接。大多數(shù)焊絲屬于此類，包括碳鋼焊絲、低合金結(jié)構(gòu)鋼焊絲、合金結(jié)構(gòu)鋼焊絲、不銹鋼焊絲和有色金屬焊絲等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京模具焊條焊絲,焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275563994140/7040916.png"></div><p> 龜裂之焊合。**度焊絲，含鎳鉻合金成份高，用于防破裂底層焊接、填充打底，拉力強(qiáng)，并可修補(bǔ)鋼材之龜裂焊合重建。718>～HRC28～30大型家電、玩具、通信、電子、運(yùn)動器材等塑料產(chǎn)品模具鋼。塑料射出模、耐熱模、抗腐蝕模，切削性、蝕花性良好，研磨后表面光澤性優(yōu)良，使用壽命長。預(yù)熱溫度250～300℃后熱溫度400~500℃，作多層焊補(bǔ)時，采用后退法焊補(bǔ)，較不易產(chǎn)生融合不良及等缺點(diǎn)。738>～HRC32～35半透明及需有表面光澤之塑料產(chǎn)品模具鋼，大型模具，產(chǎn)品形狀復(fù)雜及精度高之塑料模用鋼。塑料射出模、耐熱模、抗腐蝕模、蝕花性良好，具備優(yōu)良加工性能，易切削拋光和電蝕，韌性及耐磨性佳。預(yù)熱溫度250～300℃后熱溫度400～500℃，作多層焊補(bǔ)時，采用后退法焊補(bǔ)，較不易產(chǎn)生熔合不良及等缺點(diǎn)。P20Ni>～HRC30～34塑料射出模、耐熱模（鑄銅模）。以焊接裂開敏感性低的合金成份設(shè)計，含鎳約1%，適合PA、POM、PS、PE、PP、ABS塑料，具良好之拋光性，焊后無氣孔、裂紋，打磨后有良好之光潔度，經(jīng)真空脫氣，鍛造后，預(yù)硬至HRC33度，斷面硬度分布均一，模具壽命達(dá)300,000以上。預(yù)熱溫度250～300℃后熱溫度400～500℃，作多層焊補(bǔ)時，采用后退法焊補(bǔ)。主要用于工件表面的手工堆焊，以滿足如抗氧化、耐磨損和高溫下耐腐蝕等特殊性能要求。南京模具焊條焊絲</p><p style="text-indent:25px">焊絲主要用于二氧化碳?xì)怏w保護(hù)焊、埋弧焊和電渣焊。南京模具焊條焊絲</p><p> 藥芯焊絲的截面形狀多種多樣，下圖各種藥芯焊絲的截面形狀。藥芯焊絲**簡單的截面形狀是“O”形，通常又稱為管狀焊絲。這種焊絲由于芯部粉劑不導(dǎo)電，電弧容易沿四周的鋼皮旋轉(zhuǎn)，使得電弧穩(wěn)定性差。因此“0”形只用于制造細(xì)徑藥芯焊絲。異形焊絲因鋼皮在整個截面上分布比較均勻，所以電弧燃燒穩(wěn)定，焊絲熔化均勻，冶金反應(yīng)進(jìn)行得比較充分，適合于制造直徑。藥芯焊絲的優(yōu)點(diǎn)生產(chǎn)效率高藥芯焊絲可進(jìn)行連續(xù)的自動化和半自動化生產(chǎn)，與焊條相比，**節(jié)約了更換焊條、引弧和收弧等輔助工序的時間。同時它的焊接飛濺小，不易堵塞焊嘴，所以比CO2實(shí)芯焊絲更適于機(jī)器人焊接。熔敷速度快，飛濺?。喝鄯笏俣仁侵溉酆高^程中，單位時間內(nèi)熔敷在焊件上的金屬量。藥芯焊絲之所以比焊條熔敷速度快，主要是因?yàn)樗梢允褂酶蟮暮附与娏鳎煌瑫r，藥芯焊絲中只含質(zhì)量分?jǐn)?shù)為15%~20%左右的藥粉，而焊條的涂料藥皮質(zhì)量分?jǐn)?shù)占25%以上，因此電能可以更有效地用來熔化焊絲的金屬部分。與CO2實(shí)芯焊絲相比，由于其電流集中于外表鋼皮，電流密度大，所產(chǎn)生的電阻熱更大；此外，飛濺小，所熔化金屬可以更有效地進(jìn)入熔池，因而藥芯焊絲甚至比CO2實(shí)芯焊絲的熔敷速度還要快。南京模具焊條焊絲</p><p style="text-indent:25px">簡敏精密五金制造(上海)有限公司致力于五金、工具，是一家生產(chǎn)型的公司。公司業(yè)務(wù)涵蓋模具焊條，模具焊絲，特種焊絲，特種焊條等，價格合理，品質(zhì)有保證。公司從事五金、工具多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。簡敏五金制造立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: 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