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clearfix"><div id="maniuqs" class="twoCol"><div id="3ej34gy" 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>?安徽SKD-11焊絲供貨廠歡迎來(lái)電簡(jiǎn)敏精密五金制造供應(yīng)</p><div id="dmt8swn" class="leftbox clearfix"><h1>安徽SKD-11焊絲供貨廠歡迎來(lái)電簡(jiǎn)敏精密五金制造供應(yīng)</h1><div id="2p7qpls" class="proBig"><div id="bk7lzi8" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265664882812/4463123.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ilxbxyk" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265664882812/4463123.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3k8lxj2" 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>安徽SKD-11焊絲供貨廠,焊絲</p><p><span>***更新：</span>2021-02-01 08:04:21</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="s8q3vmx" 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="kdkmdpw" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="s3es2ho" class="box"><p><p> 如果*是引孤時(shí)使用高頻振蕩器，因時(shí)間較短，影響較小，安徽SKD-11焊絲供貨廠，如果頻繁起弧，或者把高頻振蕩器做為穩(wěn)弧裝置在焊接過(guò)程中持續(xù)使用，則高頻電磁場(chǎng)可成為有害因素之一。放射性的危害氬弧焊使用的釷鎢含有l(wèi)％一％的氧化釷。釷是一種放射性元素，能放射出α，β，安徽SKD-11焊絲供貨廠，γ三種射線。在焊接過(guò)程及與釷鎢棒的接觸過(guò)程中，可能會(huì)受到放射線的影響。通過(guò)大量調(diào)查，每天消耗的釷鎢棒*100--200mg，放射劑量極微，對(duì)人體影響不大，安徽SKD-11焊絲供貨廠。但是在容器內(nèi)焊接時(shí)，通風(fēng)不暢，煙塵中的放射性粒子有可能超過(guò)衛(wèi)生標(biāo)準(zhǔn)；二是在磨削釷鎢棒時(shí)及存放釷鎢棒的地點(diǎn)，放射性氣溶膠和放射性粉塵的濃度，可達(dá)到甚至超過(guò)衛(wèi)生標(biāo)準(zhǔn)。放射性物質(zhì)侵入體內(nèi)，可引起慢性放射性疾病，形成內(nèi)照射，主要表現(xiàn)在一般機(jī)能狀態(tài)減弱，可以看到明顯的衰弱無(wú)力、對(duì)傳染病的抵抗力明顯降低、體重減輕等癥狀。百度百科：放射性氣溶膠，懸浮在空氣或其他氣體中含有放射性核素的固體或液體微粒。固體或液體放射性微粒懸浮在空氣或氣體介質(zhì)中形成的分散體系。氣溶膠的基本特性是不穩(wěn)定,小于；1～10微米的微粒沉降緩慢，懸浮在空氣中較久。放射性氣溶膠的電離效應(yīng)高、濃度低、微粒上易帶電（由放射性衰變產(chǎn)生）。二氧化碳?xì)怏w保護(hù)電弧焊（簡(jiǎn)稱(chēng)CO2焊）的保護(hù)氣體是二氧化碳（有時(shí)采用CO2+O2的混合氣體）。安徽SKD-11焊絲供貨廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽SKD-11焊絲供貨廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265664882812/4463123.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(méi)有藥皮的夾持端，被焊鉗夾住后可以傳導(dǎo)電流（藥皮不導(dǎo)電），焊條末端的藥皮磨成錐形，便于焊接時(shí)引弧。焊條上端藥皮處印有該焊條的型號(hào)或牌號(hào)，以便焊工使用時(shí)識(shí)別。（1）焊芯碳素結(jié)構(gòu)鋼和低合金結(jié)構(gòu)鋼焊接用的焊條，其焊芯材料為低碳鋼。常用牌號(hào)為H08A，含義如下：H08A焊芯的化學(xué)成分，見(jiàn)表3-1。碳在焊接過(guò)程中會(huì)引起飛濺，并使焊縫產(chǎn)生氣孔和裂紋，所以必須限制焊芯中碳的含量。焊芯的長(zhǎng)度與焊芯的直徑（即焊條的直徑）有關(guān)，見(jiàn)表3-2。焊芯直徑越細(xì)，電阻越大，焊接時(shí)由于電流通過(guò)焊芯所產(chǎn)生的電阻熱也越大，使藥皮發(fā)紅變質(zhì)，所以其長(zhǎng)度就越短。生產(chǎn)中常用的焊芯直徑是，，。（2）藥皮在焊接過(guò)程中藥皮的作用是：1）使電弧穩(wěn)定燃燒。2）產(chǎn)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(zhì)量。3）產(chǎn)生的熔渣覆蓋在焊縫上，使焊縫表面成形良好。4）通過(guò)熔渣與熔化金屬之間的化學(xué)反應(yīng)，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(xué)性能。江蘇特種焊絲藥芯焊絲的制造過(guò)程控制非常嚴(yán)謹(jǐn)，熔填金屬來(lái)自鋼片皮材及焊劑所含的成份。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽SKD-11焊絲供貨廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265684541015/1545447.png"></div><p> 焊機(jī)穩(wěn)態(tài)輸出電流和輸出電壓的關(guān)系稱(chēng)為焊機(jī)的外特性。焊機(jī)的外特性如圖3—12所示。焊機(jī)外特性有三種形式：即下降特性(陡降、緩降)、平特性和上升特性。由于熔滴過(guò)渡和熱慣性以及操作等原因，焊接時(shí)電弧長(zhǎng)度總是在不斷的變化，因而電弧電壓和焊接電流也在不斷地變化。為保證焊接質(zhì)量穩(wěn)定，總希望焊接過(guò)程中焊接電流變動(dòng)越小越好。從圖3—13可以看出，具有陡降外特性的焊機(jī)和緩降外特性的焊機(jī)，當(dāng)焊接電流發(fā)生相應(yīng)的變化值△I時(shí)，陡降外特性曲線引起的電壓變化值△U2大于緩降外特性曲線引起的電壓變化值△U1。換句話說(shuō)，對(duì)于相同的弧長(zhǎng)變化，陡降外特性焊機(jī)所引起的電流變化要比緩降外特性焊機(jī)所引起的焊接電流變化小得多。焊條電弧焊過(guò)程中，弧長(zhǎng)變化是經(jīng)常發(fā)生的，為了保證焊接電流穩(wěn)定，顯然要求焊機(jī)具有陡降的外特性。圖3—12焊機(jī)外特性曲線1—陡降外特性曲線2—緩降外特性曲線3—上升特性曲線4—乎特性曲線圖3—13兩種不同下降程度的外特性曲線1—緩降外特性曲線2—陡降外特性曲線五、焊條電弧焊輔助設(shè)備和工具焊條電弧焊輔助設(shè)備和工具包括電焊鉗、焊接電纜、面罩及其它防護(hù)用具。(一)電焊鉗電焊鉗是夾持焊條并傳導(dǎo)焊接電流的操作器具。</p><p> 為防止底層焊道的背面被氧化，背面也需要實(shí)施氣體保護(hù)。7、為使氬氣很好地保護(hù)焊接熔池，和便于施焊操作，鎢極中心線與焊接處工件一般應(yīng)保持80~85°角,填充焊絲與工件表面夾角應(yīng)盡可能地小，一般為10°左右。8、防風(fēng)與換氣。有風(fēng)的地方，務(wù)請(qǐng)采取擋網(wǎng)的措施，而在室內(nèi)則應(yīng)采取適當(dāng)?shù)膿Q氣措施。二、不銹鋼焊接要點(diǎn)及注意事項(xiàng)1、采用平特性焊接電源，直流時(shí)采用反極性(焊絲接正極)2、一般采用純氬氣(純度為)或Ar+2%O2,流量以20~25L/min為宜。3、電弧長(zhǎng)度，不銹鋼的MIG焊接，一般都在噴射過(guò)渡的條件下來(lái)施焊，電壓要調(diào)整到弧長(zhǎng)在4~6mm的程度。4、防風(fēng)。MIG焊接容易受到風(fēng)的影響，有時(shí)微風(fēng)而產(chǎn)生氣孔，所以風(fēng)速在，都應(yīng)當(dāng)采取防風(fēng)措施。三、不銹鋼藥芯焊絲焊接要點(diǎn)及注意事項(xiàng)1、采用平特性焊接電源，直流焊接時(shí)采用反極性。使用一般的CO2焊機(jī)就可以施焊，但送絲輪的壓力請(qǐng)稍調(diào)松。2、保護(hù)氣體一般為二氧化碳?xì)怏w，氣體流量以20~25L/min較適宜。3、焊嘴與工件間的距離以15~25mm為宜。4、干伸長(zhǎng)度，一般的焊接電流為250A以下時(shí)約15mm。藥芯焊絲工藝性能好，焊縫成形美觀采用氣渣聯(lián)合保護(hù)，獲得良好成形。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽SKD-11焊絲供貨廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671318359/8288159.jpg"></div><p> 也可用于硬化性大的鉻鋼（如Cr5Mo、Cr9Mo、Cr13、Cr28等）以及異種鋼的焊接。A407不銹鋼焊條符合GBE310-15相當(dāng)AWSE310-15說(shuō)明:A407是堿***皮的Cr26Ni21純奧氏體不銹鋼焊條。熔敷金屬900~1100℃高溫條件下具有優(yōu)良的抗氧化性。采用直流反接，可進(jìn)行全位置焊接。由于焊縫為純奧氏體，抗熱裂性能不及雙相組.織的好。用途:用于同類(lèi)型的耐熱不銹鋼，不銹鋼襯里以及異種鋼的焊接，也可用來(lái)焊接硬化性大的Cr5Mo、Cr9Mo、Cr13及Cr28鋼等的焊接。A412不銹鋼焊條符合GBE310Mo-16相當(dāng)AWSE310Mo-16說(shuō)明:A412是鈦鈣型藥皮的Cr26Ni21Mo2純奧氏體不銹鋼焊條。由于熔敷金屬中添加了Mo，故耐蝕性、耐熱性、抗裂性能均比A402、A407有所改善。交直流兩用，操作工藝性能良好。用途:用于焊接在高溫下工作的耐熱不銹鋼，也可用來(lái)焊接不銹鋼襯里、異種鋼等。在焊接淬硬性高的碳鋼、低合金鋼時(shí)韌性極好。A422不銹鋼焊條說(shuō)明:A422是鈦鈣型藥皮的Cr25Ni18Mn8不銹鋼焊條,交直流兩用。由于焊縫中加入了較多的Mn，因而提高了焊縫的抗熱裂性能。用途:用于補(bǔ)焊爐卷軌機(jī)上的Cr25Ni20Si2奧氏體耐熱鋼卷筒，也可用于焊接異種鋼等。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)。安徽SKD-11焊絲供貨廠</p><p style="text-indent:25px">低合金鋼焊材的焊劑系統(tǒng)的開(kāi)發(fā)融合了酸性系的作業(yè)性與堿性系的優(yōu)良機(jī)械性。安徽SKD-11焊絲供貨廠</p><p> 補(bǔ)焊要求不高的黃銅鑄件可采用純銅芯焊條，如ECu（T107）。電源采用直流正接，V型坡口角度不應(yīng)小于60°～70°。板厚超過(guò)14mm時(shí)，焊前焊件表面應(yīng)仔細(xì)清理，***一切會(huì)產(chǎn)生氫氣的油類(lèi)雜質(zhì)。操作時(shí)應(yīng)當(dāng)用短弧焊接，焊條不做橫向和前后擺動(dòng)，只沿焊縫的直線移動(dòng)。焊接速度要快，不應(yīng)低于～。多層焊時(shí)，層與層之間的氧化膜及渣應(yīng)***干凈。黃銅的銅液流動(dòng)性大，故溶池比較好處于水平位置，若溶池必須傾斜，則傾角不應(yīng)大于15°3．黃銅的手工氬弧焊手工鎢極氬弧焊時(shí)，焊絲采用錫黃銅焊絲HSCuZ-1（HS221）、鐵黃銅焊絲HSCuZn-2（HS222）、硅黃銅焊絲HSCuZn-4（HS224）。這些焊絲含鋅較高，焊接時(shí)煙霧較大。亦可用青銅焊絲HSCuSi（HS211）、HSCuSn（HS212）。焊接可以用直流正接，也可以用交流。用交流焊接時(shí)，鋅的蒸發(fā)比直流正接時(shí)輕。通常焊前不用預(yù)熱，只有板厚相差比較大時(shí)才預(yù)熱。焊接速度應(yīng)盡可能快。焊件在焊后應(yīng)加熱300~400℃進(jìn)行退火處理，消除焊接應(yīng)力，以防止焊件在使用過(guò)程中裂縫。由于鋅的蒸發(fā)破壞氬氣的保護(hù)效果，所以焊接黃銅時(shí)應(yīng)選用較大的噴嘴孔徑和氬氣流量。焊前一般不預(yù)熱，只有焊接厚度大于10mm的接頭和焊接邊緣厚度相差比較大的接頭時(shí)才需預(yù)熱。安徽SKD-11焊絲供貨廠</p><p style="text-indent:25px">簡(jiǎn)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)型公司。公司業(yè)務(wù)分為模具焊條，模具焊絲，特種焊絲，特種焊條等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造五金、工具良好品牌。簡(jiǎn)敏五金制造憑借創(chuàng)新的產(chǎn)品、專(zhuān)業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3109183.html</p></div></div></div></div></div><div id="yto3s88" class="page-right twoColRt"><div id="s2rdkmo" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qpwdfwd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="xrnpmyp" class="recomPic likePro"><a 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