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src="/uploads/180330/1-1P330102135W2-lp.jpg" style="margin-right: 10px; float: left; width: 180px; height: 180px;" /></h3> <div> <div> <h3> <span style="font-size:36px;"><a href="http://www.gdzjsme.cn">管件設(shè)備</a>中的中頻彎管特點(diǎn)</span></h3> </div> <div> <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></div> <div> <span style="font-size:20px;">2.中頻彎管一般適合于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></div> <div> <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></div> <div> <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。 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></div> <div> <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></div> <div> <span style="font-size:20px;">7.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></div> <div> <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></div> <div> <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。彎頭<a >彎管機(jī)</a>結(jié)構(gòu)及工作原理：由電動(dòng)油泵，高壓油管，快速接頭，工作油缸，柱塞，彎管部件組成。由電動(dòng)油泵輸出的高壓油，經(jīng)高壓油管送入工作油缸內(nèi)，高壓油推動(dòng)工作油缸內(nèi)柱塞，產(chǎn)生推力，通過(guò)彎管部件彎曲管子。</span></div> </div> <div id="pbr1jlx" class="float_c news-page fs_14"> <div id="pzjb5ft" class="f_l"> 上一篇：<a href='/hyxw/1980.html'>管件設(shè)備中的中頻彎管機(jī)</a> </div> <div id="9xxxxvj" class="f_r"> 下一篇：<a href='/hyxw/1985.html'>彎管機(jī)在運(yùn)輸和移動(dòng)以及安裝過(guò)程需要注意的事</a> </div> </div> </div> </div> </div> </div> <div id="fld3ztj" class="footer"> <div id="prldhtf" class="w_1200 float_c pos_r"> <div id="pr5t5pr" class="f_l"> <ul class="list_none footer_ul"> <li> 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