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href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="3ht2u38" class="twoCol"><div id="8p7khbn" 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>?上海RD12M焊絲廠歡迎來(lái)電簡(jiǎn)敏精密五金制造供應(yīng)</p><div id="j8i9h87" class="leftbox clearfix"><h1>上海RD12M焊絲廠歡迎來(lái)電簡(jiǎn)敏精密五金制造供應(yīng)</h1><div id="72kuw2v" class="proBig"><div id="sce9ti2" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685263672/7237309.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="sqsczyp" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685263672/7237309.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="laxwnug" 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>上海RD12M焊絲廠,焊絲</p><p><span>***更新：</span>2020-08-04 14:17:20</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="jdvsubi" 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="blde78l" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="32is39u" class="box"><p><p> 2、酸性焊條和堿性焊條焊條藥皮是由一定數(shù)量及用途的礦石、礦物、鐵合金、化工材料、有機(jī)物混合而成，其中大部分是金屬和非金屬氧化物。如果藥皮的成分以酸性氧化物為主（如氧化鈦、硅砂）的，稱為酸性焊條，生產(chǎn)中常用的是鈦鈣型焊條；如果藥皮的成分以堿性氧化物為主（如氧化鈣）的，稱為堿性焊條，生產(chǎn)中常用的是以碳酸鹽和螢石為主的低氫型焊條。酸性焊條和堿性焊條的操作性能比較，見(jiàn)表3-3。3、焊條的分類與型號(hào)表示（1）焊條的分類根據(jù)所焊材料的不同，焊條可分為低碳鋼及低合金鋼焊條、鉬和鉻鉬耐熱鋼焊條、不銹鋼焊條（包括奧氏體不銹鋼焊條和鉻不銹鋼焊條兩大類）、堆焊焊條、低溫鋼焊條、鑄鐵焊條、鎳和鎳合金焊條、銅和銅合金焊條以及鋁和鋁合金焊條九類。（2）結(jié)構(gòu)鋼焊條型號(hào)的編制方法根據(jù)GB5117-85“碳鋼焊條”、GB5118-85“低合金鋼焊條”的規(guī)定，焊條型號(hào)編制方法如下：字母E表示焊條；前兩位數(shù)字表示熔敷金屬抗拉強(qiáng)度的最小值；第三位數(shù)字表示焊條的焊接位臵，0及1表示焊條適用于全位臵焊接（平、立，上海RD12M焊絲廠、仰、橫），上海RD12M焊絲廠，上海RD12M焊絲廠，2表示焊條適用于平焊及平角焊，4表示焊條適用于向下立焊；第三位和第四位數(shù)字組合時(shí)表示焊接電流種類及藥皮類型。?焊絲的表面不涂防氧化作用的焊劑。上海RD12M焊絲廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海RD12M焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265685263672/7237309.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。上海RD12M焊絲廠?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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海RD12M焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265669208984/3318362.png"></div><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，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，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。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）。</p><p> 不受阻擋。安裝架13的水平板上方的靠后位置處左右居中安裝有立塊14，立塊14上開有前后貫通的焊條穿孔14a，在立塊14的前方水平安裝有正對(duì)焊條穿孔14a的焊條導(dǎo)向管15。焊條導(dǎo)向管15位于上導(dǎo)向膠輪9與下導(dǎo)向膠輪10圍成的通道的正后方。通過(guò)上導(dǎo)向膠輪和下導(dǎo)向膠輪整形的同時(shí)，結(jié)合左、右限位柱和上、下導(dǎo)向膠輪共同確保焊條順利進(jìn)入焊條導(dǎo)向管。安裝架13的上方通過(guò)“門”形安裝架16安裝有朝向下方的豎直氣缸6，豎直氣缸6的活塞桿與焊條切斷刀7相連，焊條切斷刀7與立塊14的后壁貼合，并能在豎直氣缸6的帶動(dòng)下上下運(yùn)動(dòng)，從而將經(jīng)焊條導(dǎo)向管15、焊條穿孔14a出來(lái)的焊條切斷。比較好是，“門”形安裝架16由兩根立柱16a和一塊支撐板16b組成，兩根立柱16a左右對(duì)稱布置在支撐板16b的下方。安裝架13的豎直板下端帶有兩個(gè)左右間隔布置的條形缺口13a，螺栓8穿過(guò)對(duì)應(yīng)的條形缺口13a，將安裝架13固定在工作臺(tái)12上。上導(dǎo)向膠輪9和下導(dǎo)向膠輪10同步轉(zhuǎn)動(dòng)，首先將焊條穿過(guò)從左、右限位柱11中間穿過(guò)，再?gòu)纳蠈?dǎo)向膠輪9和下導(dǎo)向膠輪10圍成的通道中穿過(guò)，進(jìn)入焊條導(dǎo)向管15，***穿過(guò)焊條穿孔14a，再啟動(dòng)上導(dǎo)向膠輪9和下導(dǎo)向膠輪10各自的驅(qū)動(dòng)電機(jī)。由上導(dǎo)向膠輪9和下導(dǎo)向膠輪10帶動(dòng)焊條向后移動(dòng)。含有造渣、造氣和穩(wěn)弧成分的藥芯焊絲焊接時(shí)不需要保護(hù)氣體，稱自保護(hù)藥芯焊絲。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海RD12M焊絲廠,焊絲" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265671406250/559850.png"></div><p> 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MIG焊要點(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，250A以上時(shí)約20~25mm較為合適?！珰寤『笇?duì)人體有多大危害？一定要重視！焊接技術(shù)氬弧焊的危害程度要比焊條電弧焊相對(duì)來(lái)說(shuō)要大，但是沒(méi)有大到讓人望而生畏的地步。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。上海RD12M焊絲廠</p><p style="text-indent:25px">焊劑為堿性系統(tǒng)的焊材可使熔填金屬獲得非常優(yōu)良的延性與韌性，但作業(yè)性遠(yuǎn)較酸性系為差。上海RD12M焊絲廠</p><p> 不銹鋼焊條簡(jiǎn)介G202不銹鋼焊條符合GBE410-16相當(dāng)AWSE410-16說(shuō)明:G202是鈦鈣型藥皮的Cr13不銹鋼焊條，可交直流兩用。用途:用于焊接0Cr13和1Cr13不銹鋼結(jié)構(gòu)，也用于耐蝕、耐磨的表面堆焊。G207不銹鋼焊條符合GBE410-15相當(dāng)AWSE410-15說(shuō)明:G207是堿***皮的鉻不銹鋼焊條，采用直流反接，可進(jìn)行全位置焊接。用途:用于0Cr13及1Cr13不銹鋼結(jié)構(gòu)焊接，也可用于耐蝕堆焊，可全位置焊接。G217不銹鋼焊條符合GBE410-15相當(dāng)AWSE410-15說(shuō)明:G217是堿***皮的Cr13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0Cr13和1Cr13、2Cr13不銹鋼結(jié)構(gòu)，如汽輪機(jī)葉片的補(bǔ)焊及對(duì)接，也可用于耐蝕、耐磨的表面堆焊。G302不銹鋼焊條符合GBE430-16相當(dāng)AWSE430-16說(shuō)明:G302是鈦型藥皮的Cr17不銹鋼焊條，可交直流兩用。用途:用于焊接耐硝酸腐蝕、耐熱的Cr17不銹鋼結(jié)構(gòu)。G307不銹鋼焊條符合GBE430-15相當(dāng)AWSE430-15說(shuō)明:G307是堿***皮的Cr17不銹鋼焊條，采用直流反接，可進(jìn)行全位置焊接。用途:用于焊接耐硝酸腐蝕、耐熱的Cr17不銹鋼結(jié)構(gòu)。上海RD12M焊絲廠</p><p style="text-indent:25px">簡(jiǎn)敏精密五金制造(上海)有限公司創(chuàng)立于2016-12-05，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)，為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在五金、工具深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為**，發(fā)揮人才優(yōu)勢(shì)，打造五金、工具質(zhì)量品牌。在社會(huì)各界的鼎力支持下，經(jīng)過(guò)公司所有人員的努力，公司自2016-12-05成立以來(lái)，年?duì)I業(yè)額達(dá)到1000-2000萬(wàn)元。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/806145.html</p></div></div></div></div></div><div id="fpwtvx8" class="page-right twoColRt"><div id="au8e7n2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="aewy7m9" 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="c7xzwyf" class="recomPic likePro"><a 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