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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="2oiq424" class="twoCol"><div id="v3nbl4w" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產品供應</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>?江西THW焊條焊絲銷售廠歡迎咨詢簡敏精密五金制造供應</p><div id="y78s8ou" class="leftbox clearfix"><h1>江西THW焊條焊絲銷售廠歡迎咨詢簡敏精密五金制造供應</h1><div id="xt9l9ah" class="proBig"><div id="v2cjyxr" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275547675781/498916.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="eaoqx9n" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275547675781/498916.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="7lnfxby" 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>產品關鍵詞：</span>江西THW焊條焊絲銷售廠</p><p><span>***更新：</span>2020-06-22 18:25:26</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="ywlh2d2" 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: </span>021-69726282</p><p><span>地址: </span>顧北東路365號C區(qū)1101</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="7cjl32q" class="page-proshow02"><p class="title">詳細說明</p><div id="cvxph9f" class="box"><p><p> 焊接時聽到沙……沙的聲音，（小電流時聲音是滋滋聲）。焊接時焊機的電流表，電壓表的指針穩(wěn)定，擺動小。2.比較好規(guī)范的調整方法：根據(jù)焊件厚度，焊縫位置，選擇焊絲直徑，氣體流量，江西THW焊條焊絲銷售廠，焊接電流。在試板上試焊，根據(jù)選擇的送絲速度，細心調整焊接電壓，比較好的浮動焊接電壓一般在1-2V之間。根據(jù)試板上焊縫成形情況，適當調整送絲速度，焊接電壓，達到比較好焊接規(guī)范。在工件上正式焊接過程中，應注意焊接回路，接觸電阻引起的電壓降，及時調整（微調）焊接電壓，確保焊接過程穩(wěn)定。3.焊接規(guī)范匹配不良的焊接現(xiàn)象及排除：當焊絲端頭始終有滴狀金屬小球存在，且過度頻率偏低，此情況說明焊接電壓偏高，此時應加快焊絲速度或降低焊接電壓。當焊絲干伸偏短時能正常焊接，江西THW焊條焊絲銷售廠，稍長就出現(xiàn)頂絲現(xiàn)象，說明焊接電壓偏低，此時應通過降低送絲速度或升高焊接電壓。4、調試焊接參數(shù)時應注意以下幾點：先把送絲速度調低點。再調焊接電壓，焊接電流應根據(jù)焊接母材的厚度來控制。再調送絲速度，這時把送絲調到正好（電弧能夠把焊絲溶解，且溶解的很舒服）。聽聲音，看飛濺。如果溶解的很舒服，聲音是很平穩(wěn)的，不會乒乓作響，江西THW焊條焊絲銷售廠，飛濺也少。5、在保證焊縫熔透（這里不是焊穿的意思）的情況下。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西THW焊條焊絲銷售廠" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179275547675781/498916.png"></div><p> co2氣保焊從不會到精通一、焊接開始先打開配電盤開關，再打開焊機電源開關。（注意：再打開電源開關時，應側身操作，避免因電器短路造成燒傷等）。緩慢打開儲氣瓶閥門。調節(jié)合適的氣壓。調節(jié)合適的電流，電壓。二、焊接結束關閉儲氣瓶閥門，放出氣管內殘留氣體。然后關閉電源。把設備整理好放回原處。三、焊絲盤的安裝選擇合適的焊絲直徑。向焊絲盤軸裝焊絲盤，并固定牢固。將焊絲插入焊絲插口處。用焊絲加壓手柄給焊絲施加合適的壓力。選擇合適的導電嘴，并擰緊。四、焊操作基礎1.引弧及焊接完成時的操作:因為引弧及焊接完成時容易出現(xiàn)缺點，所以操作焊時一定要遵守噴嘴-工件間距離及焊角度。在引弧前的間隔，受到焊絲接觸時的沖擊而回升，注意勿使焊因沖擊而回升。2.噴嘴-工件間距離：噴嘴-工件間距離過大時，容易產生缺點（氣孔，坑等）。一般情況下采用焊絲直徑的10倍距離左右（如焊絲，選用距離為10毫米左右）。3.導電嘴距離噴嘴外緣5mm比較好。4.氣體保護效果不好的識別：根據(jù)電弧聲音及熔池狀態(tài)等就可以很簡單地判斷正常電弧，異常電弧時的熔池成沸騰狀，需經過經驗來掌握正常電弧的狀態(tài)。5.焊絲伸出長度的影響：導電嘴-母材間距離過長時，影響有：產生氣孔。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西THW焊條焊絲銷售廠" src="http://tyunfile.71360.com/UploadFile/shjianmin2/637179265688232422/703661.png"></div><p> -40℃）/J標準值≥890940～1180≥15≥47Mn4Ni2CrMo，44，52，64，54Ok8，53，49，65，48表11MF745B和MF1100M熔敷金屬化學成分（質量分數(shù)）（%）成分CMnSiPSCrNiMoV標準值～～≤≤≤～～～≤MF745BMF1100M—表12MF745B和MF1100M熔敷金屬力學性能項目Re/MPaRm/MPaA（%）KV2（-40℃）/J標準值≥890940～1180≥15≥47MF745B78099044，46，48，47，42MF1100M88995956，56，51，56，56三、結語700MPa級的實芯焊絲與藥芯焊絲均能滿足力學性能要求，并且焊縫的塑性和韌性方面藥芯焊絲略優(yōu)于實芯焊絲。900MPa級的實芯焊絲比藥芯焊絲力學性能優(yōu)良。此外，實芯焊絲焊接煙塵較小，送絲平穩(wěn)，容易保存；藥芯焊絲易吸潮，保存管理的要求更為嚴格。根據(jù)兩類焊材的特點，為公司不同產品的焊材選擇提供了技術支持。作者簡介：吳曉玲，太重（天津）濱海重型機械有限公司質量部；張曉剛，太原重工股份有限公司工程機械分公司。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/353285.html</p></div></div></div></div></div><div id="hk87b2t" class="page-right twoColRt"><div id="wvsfx97" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pyasu4a" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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