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news-datails"> <p class="fs_20 txt_c news-head-p">中頻彎管特點(diǎn)</p> <h3> <img src="/uploads/180411/1-1P4110SPX29-lp.jpg" style="margin-right: 10px; float: left; width: 180px; height: 180px;" /><a href="http://www.chikumakai.com"><span style="font-size:36px;">中頻彎管特點(diǎn)</span></a></h3> <p align="left"> <span style="font-size:20px;">1.中頻彎管采用垂直外特性的電源，直流時(shí)采用正極性（焊絲接負(fù)極）</span></p> <p align="left"> <span style="font-size:20px;">2.<a href="http://www.chikumakai.com">中頻彎管</a>一般適合于6mm以下薄板的焊接，具有焊縫成型美觀，焊接變形量小的特點(diǎn)</span></p> <p align="left"> <span style="font-size:20px;">3.保護(hù)氣體為氬氣，純度為99.99%。當(dāng)焊接電流為50~50A時(shí)，氬氣流量為8~0L/min，當(dāng)電流為50~250A時(shí)，氬氣流量為2~5L/min。</span></p> <p align="left"> <span style="font-size:20px;">4.焊接電弧長(zhǎng)度，焊接普通鋼時(shí)，以2~4mm為佳，而焊接不銹鋼時(shí)，以~3mm為佳，過(guò)長(zhǎng)則保護(hù)效果不好。</span></p> <p align="left"> <span style="font-size:20px;">5.中頻彎管為防止焊接氣孔之出現(xiàn)，焊接部位如有鐵銹、油污等務(wù)必清理干凈。</span></p> <p align="left"> <span style="font-size: 20px;">6.鎢極從氣體噴嘴突出的長(zhǎng)度，以4~5mm為佳，，在角焊等遮蔽性差的地方是2~3mm，在開(kāi)槽深的地方是5~6mm，噴嘴至工作的距離一般不超過(guò)5mm。</span></p> <p align="left"> <span style="font-size:20px;">7.<a href="http://www.chikumakai.com">中頻彎管</a>對(duì)接打底時(shí)，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)。</span></p> <p align="left"> <span style="font-size:20px;">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。</span></p> <p align="left"> <span style="font-size:20px;">9.中頻彎管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0°左右。</span></p> <p> <span style="font-size:20px;">表面夾角應(yīng)盡可能地小，一般為0°左右。</span></p> <div id="5hdn5bl" class="float_c news-page fs_14"> <div id="dzvhrpn" class="f_l"> 上一篇：<a href='/gsxw/1820.html'>什么是三通</a> </div> <div id="tbjtrfl" class="f_r"> 下一篇：<a href='/gsxw/1838.html'>彎頭倒角機(jī)的加工板材注意事項(xiàng)</a> </div> </div> </div> </div> </div> </div> <div id="z5fp755" class="footer"> <div id="5rbljt7" class="w_1200 float_c pos_r"> <div id="tblx5xf" 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