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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>江西模具焊條焊絲批發(fā),焊條焊絲</p><p><span>***更新：</span>2020-06-17 06:15:23</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="z29wlcj" 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="uvsprtk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="tsphegi" class="box"><p><p> 收藏查看我的收藏0有用+1已投票0焊絲編輯鎖定討論本詞條由“科普中國(guó)”科學(xué)百科詞條編寫與應(yīng)用工作項(xiàng)目審核。焊絲是作為填充金屬或同時(shí)作為導(dǎo)電用的金屬絲焊接材料，江西模具焊條焊絲批發(fā)。在氣焊和鎢極氣體保護(hù)電弧焊時(shí)，焊絲用作填充金屬；在埋弧焊、電渣焊和其他熔化極氣體保護(hù)電弧焊時(shí)，焊絲既是填充金屬，同時(shí)焊絲也是導(dǎo)電電極。焊絲的表面不涂防氧化作用的焊劑。中文名焊絲外文名Wire抗拉強(qiáng)度760N/mm2廷伸率26%形狀卷成圓形或異形特性焊接過(guò)程中有異味目錄1分類?軋制類?鑄造類?藥芯類?介紹?特點(diǎn)2焊劑功能3電火花類4CO2焊5型號(hào)6存放焊絲分類編輯焊絲軋制類大多數(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[1]。常見焊絲：SKD11>～HRC56～58焊補(bǔ)冷作鋼、五金沖壓模、切模、刀.具、成型模、工件硬面制作具高硬度、耐磨性及高韌性之氬焊條，焊補(bǔ)前先加溫預(yù)熱，否則易產(chǎn)生龜裂現(xiàn)象。63度刀口刃口焊絲>～HRC63～55，主要應(yīng)用于焊拉刀模，熱作高硬度具模，熱鍛總模，熱沖模，螺絲模，耐磨耗硬面，高速鋼，江西模具焊條焊絲批發(fā)，江西模具焊條焊絲批發(fā)，刀口修復(fù)。SKD61>。絕大部分的藥芯焊絲均由一扁平金屬薄片長(zhǎng)條逐段經(jīng)過(guò)滾卷成U型斷面。江西模具焊條焊絲批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西模具焊條焊絲批發(fā),焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 具有工藝性能良好、操作方便、焊接質(zhì)量穩(wěn)定的特點(diǎn)。在不易進(jìn)行背面充氬保護(hù)的管道焊接作業(yè)及高空作業(yè)時(shí)其優(yōu)點(diǎn)更為突出，值得在火力發(fā)電廠安裝工程中推廣應(yīng)用。1、焊接材料與工藝本次試驗(yàn)中母材采用1Cr18Ni9奧氏體不銹鋼，規(guī)格為Ф42mm×5mm，化學(xué)成分及力學(xué)性能見表1、表2。焊絲為昆山京群焊材科技有限公司生產(chǎn)的GTS-F308L藥芯焊絲，符合AWS-95R308LT1-5及GB/T17853-99R308LT1-5標(biāo)準(zhǔn)。焊絲規(guī)格為Ф×915mm，藥芯焊絲熔敷金屬的化學(xué)成分見表3。坡口尺寸的選擇坡口型式、對(duì)口參數(shù)及焊道設(shè)計(jì)見附圖。由于奧氏體不銹鋼的導(dǎo)熱系數(shù)小而線膨脹系數(shù)大，焊接時(shí)變形大。如果在焊接時(shí)選用的坡口較大，則將會(huì)增多填充金屬，增加焊的擺動(dòng)距離，降低焊接速度，加大了變形量，增加了焊縫在高溫段的停留時(shí)間，增加了產(chǎn)生晶間腐蝕及熱裂紋的可能性，所以在保證焊縫質(zhì)量及焊工易操作的前提下，應(yīng)適當(dāng)減少坡口尺寸。經(jīng)過(guò)反復(fù)實(shí)踐，將坡口尺寸選擇為55°±5°。對(duì)口間隙也適當(dāng)增大，有利于熔渣流到焊縫根部以保護(hù)根部焊縫不受氧化。附圖坡口型式與焊道設(shè)計(jì)焊接位置為45°斜焊（6G）。打底層和該面層全部采用藥芯焊絲進(jìn)行焊接。層間溫度的控制奧氏體不銹鋼焊接中。湖南H13焊條焊絲廠家?用合金含量高于母材的焊絲作填充金屬，通?？煞乐购缚p金屬裂紋。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西模具焊條焊絲批發(fā),焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/676197.png"></div><p> 涂抹硅油6.采用高純度co2氣體7.保持合適的焊絲干伸長(zhǎng)焊絲成蛇形狀1.焊絲干伸過(guò)長(zhǎng)2.焊絲矯直輪裝置調(diào)整不合適3.送絲輪壓力過(guò)大4.送絲裝置或送絲軟管有污物5.焊絲質(zhì)量問(wèn)題1.保持合適的干伸長(zhǎng)2.重新調(diào)整3.重新調(diào)整壓力4.***污物5.更換焊絲送絲電機(jī)不轉(zhuǎn)或不送絲1．送絲輪打滑2.焊絲與導(dǎo)電嘴熔合3.送絲輪與導(dǎo)電嘴間焊絲卷曲4.焊開關(guān)接觸不良或損壞，斷開送絲軟管堵塞1.調(diào)整送絲輪壓力2.更換導(dǎo)電嘴3.剪除該段焊絲，重新裝焊絲4.修復(fù)或更換5.清理或更換焊絲與導(dǎo)電嘴融合1.引弧時(shí)送絲太慢或規(guī)范不好2.焊絲干伸過(guò)長(zhǎng)3.導(dǎo)電嘴磨損1.調(diào)節(jié)焊接規(guī)范2.保持合適的干伸長(zhǎng)3.更換導(dǎo)電嘴噴嘴與工件間引弧1.飛濺在噴嘴內(nèi)堆積2.噴嘴絕緣層燒損1.清理飛濺2.更換噴嘴接頭熔深淺，焊縫成形太高1.電流太小，電壓太低，電感太小2.焊絲干伸太長(zhǎng)3.極性接反4.焊絲太細(xì)，焊件太厚1.適當(dāng)調(diào)節(jié)焊接規(guī)范2.減小干伸長(zhǎng)3.負(fù)極接工件4.更換焊絲co2氣體不流出或無(wú)法關(guān)斷1.氣路堵塞：1減壓表凍結(jié)。</p><p> 平焊的缺點(diǎn)與原因平焊的缺點(diǎn)原因熔深不足1.電流電壓過(guò)低2.電壓相對(duì)與電流來(lái)說(shuō)過(guò)高3.焊速過(guò)快凸?fàn)?.焊速過(guò)快2.電壓相對(duì)與電流來(lái)說(shuō)過(guò)低咬邊1.電壓過(guò)高2.焊速過(guò)快焊瘤1.電壓過(guò)低2.焊絲徑與電流范圍不準(zhǔn)確3.焊速慢4.焊操作及角度不好氣孔1.施工物表面不干凈2.焊操作不良3.噴嘴-母材間距過(guò)大4.沒氣裂紋1.熔深過(guò)深2.母材的含碳量高3.施工物的局限性大4.電流過(guò)高2、水平角焊：焊操作方法；1.焊絲前端由中心線對(duì)準(zhǔn)凸側(cè)（避免產(chǎn)生焊瘤，咬邊）。2.后退法（右手右向焊法）產(chǎn)生的余高過(guò)高，作業(yè)性能差，氣體保護(hù)效果不好，切勿使用。水平角焊的缺點(diǎn)與原因缺點(diǎn)的形狀原因焊縫下垂1.焊接電流過(guò)高2.隱弧電壓過(guò)低3.焊速過(guò)慢咬邊，焊瘤1.母材溫度過(guò)高2.焊速過(guò)**.引弧電壓過(guò)高立焊（立向下焊）焊縫小時(shí)可采用直線法，焊角度45度焊接法。焊縫大時(shí)可采用鋸齒形焊接法，焊角度45度角（注意擺動(dòng)時(shí)，在焊縫兩邊應(yīng)稍作停頓，中間速度要快），焊擺動(dòng)慢時(shí)，焊縫兩端部易出現(xiàn)融合不良，應(yīng)在焊縫下垂之前移動(dòng)焊。加入穩(wěn)弧劑使電弧穩(wěn)定，熔滴過(guò)渡均勻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西模具焊條焊絲批發(fā),焊條焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275557041015/2604321.png"></div><p> 生產(chǎn)效率高在相同焊接電流下藥芯焊絲的電流密度大，熔化速度快，其熔敷率約為85%-90%，生產(chǎn)率比焊條電弧焊高約3-5倍。4）可用較大焊接電流進(jìn)行全位置焊接。⑵缺點(diǎn)1）焊絲制造過(guò)程復(fù)雜2）焊接時(shí)，送絲較實(shí)心焊絲困難3）焊絲外表容易銹蝕，粉劑易吸潮，因此對(duì)藥芯焊絲保存一管理的要求更為嚴(yán)格焊絲焊劑功能編輯與被覆焊條相同，藥芯焊絲的制造商對(duì)焊劑成份均為其特有的配方，隨著焊材適用的功能不同，焊劑成份組成亦各不同。焊劑成份的基本功能略述如下：⑴除氧劑與除氮?jiǎng)┯捎诘c氧可使焊道金屬造成氣孔或脆化，焊劑中必須添加錳與硅等除氧劑，至于自保護(hù)藥芯焊絲，焊劑中另需添加AL為除氮?jiǎng)?。以上添加除氧劑及除氮?jiǎng)┠康木谟趦艋厶罱饘?。⑵焊渣形成劑鈣、鉀、鈉或硅等均為焊渣形成劑，添加在焊劑中可以有效保護(hù)熔池不受大氣污染，焊渣可使焊道具較佳的外觀而且快速冷卻后又可以支撐全姿勢(shì)焊接時(shí)的熔池。焊渣的覆蓋更可緩和熔填金屬冷卻速率，此功能對(duì)低合金鋼的焊接尤其重要。⑶電弧穩(wěn)定劑鈉及鉀可以使電弧保持柔和順暢而且降低飛濺。⑷合金元素鉬、鉻、碳、錳、鎳及釩等合金元素的添加，可以提高（改善）熔填金屬的強(qiáng)度、延性、硬度及韌性等。焊絲是作為填充金屬或同時(shí)作為導(dǎo)電用的金屬絲焊接材料。湖南H13焊條焊絲廠家</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。江西模具焊條焊絲批發(fā)</p><p> 一般直徑）常見的自保護(hù)藥芯焊絲有：LZ409、LZ410、LZ411、LZ414N、LZ430、LZ570、LZ590、LZ601、LZ603、LZ606、LZ632、LZ641、LZ642、LZ643、LZ650等（一般直徑：）常見的埋弧堆焊藥芯焊絲有：LM001、LM414、LM414N、LM430、LM462、LM491、LM504、LM509、LM535、LM551、LM552等（一般直徑：）一、常用一般焊絲1、DY-YJ502（Q）鈦型渣系的藥芯焊絲。工藝、力學(xué)性能優(yōu)良，能夠進(jìn)行全位置焊接，特別是優(yōu)良的低溫韌性，以達(dá)到船級(jí)社3y級(jí)認(rèn)證。***用于造船、鋼結(jié)構(gòu)、橋梁等。2、DY-YJ507（Q）堿型渣系的藥芯焊絲。力學(xué)性能優(yōu)良，擴(kuò)散氫含量低，具有優(yōu)良的低溫抗裂性能。-40度沖擊功可達(dá)到80以上。用于機(jī)械制造、水電、石油化工設(shè)備等。3、DY-YJ607（Q）堿型渣系的藥芯焊絲。力學(xué)性能優(yōu)良，擴(kuò)散氫含量低，適用于60公斤級(jí)**高韌性鋼的焊接。4、YJ502CrNiCu（Q）鈦型全位置焊接藥芯焊絲。用于耐大氣腐蝕鋼的焊接。如海洋平臺(tái)的焊接用。5、YJ502Ni（Q）鈦型全位置焊接藥芯焊絲。低溫沖擊吸收功高，滿足-40度氣溫下金屬結(jié)構(gòu)的使用。二、耐熱鋼系列藥芯焊絲1、DY-YR302（Q）鈦型渣系的藥芯焊絲，適用于，***用于鍋爐壓力容器行業(yè)。2、DY-YR312。江西模具焊條焊絲批發(fā)</p><p style="text-indent:25px">簡(jiǎn)敏精密五金制造(上海)有限公司坐落在顧北東路365號(hào)C區(qū)1101，是一家專業(yè)的精密五金、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。公司。公司目前擁有高技術(shù)人才51~100人人，以不斷增強(qiáng)企業(yè)核心競(jìng)爭(zhēng)力，加快企業(yè)技術(shù)創(chuàng)新，實(shí)現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營(yíng)。公司業(yè)務(wù)范圍主要包括：[ "模具焊條", "模具焊絲", "特種焊絲", "特種焊條" ]等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營(yíng)宗旨，深受客戶好評(píng)。公司憑著雄厚的技術(shù)力量、飽滿的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹立了優(yōu)良的[ "模具焊條", "模具焊絲", "特種焊絲", "特種焊條" ]形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/286062.html</p></div></div></div></div></div><div id="33m28y3" class="page-right twoColRt"><div id="mlnpwtv" class="box01 margin10 clearfix"><h3><a 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