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2em;"><span style="font-size: 14px; font-family: 微軟雅黑, "Microsoft YaHei";">地址：武漢市東湖新技術開發區關南四路35號</span></p><p style="line-height: 2em;"><span style="font-size: 14px; font-family: 微軟雅黑, "Microsoft YaHei";">網址 : www.popechart.com </span></p><p><br/></p></div> </div> </div> <div class="right"> <div class="sitemp clearfix"> <h2> 水下焊接技術的工作原理是什么？ </h2> <div class="site">您的當前位置： <a href="http://www.popechart.com/">首頁</a> >> <a href="http://www.popechart.com/news/">新聞中心</a> >> <a href="http://www.popechart.com/news/xydt/">行業新聞</a> </div> </div> <div class="content">  <div class="news_detail"> <h1 class="title">水下焊接技術的工作原理是什么？</h1> <div class="info_title clearfix"> <h3 class="title_bar"> 發布日期：<span>2021-05-07</span> 作者：<span>武漢浩川?？扑鹿こ逃邢薰?/span> 點擊：<span><script src="http://www.popechart.com/data/include/newshits.php?id=712"></script></span> </h3> <div class="share">  <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" 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color=#2086ee><strong>水下焊接</strong></font></a>有濕式焊接和干室焊接兩種方法，濕式焊接法缺點是焊縫又硬又脆，干室焊接法適用于深海焊接，但費用昂貴，人工操作困難。濕式焊接：由發電機在水面上供給500安培左右的強大電流，用絕緣電纜送到潛水焊接處，為防止漏電，在電極上涂了蠟或防水漆。但是這種方法的缺點在于水很快冷卻了焊接的金屬，使焊縫變得又脆又硬。</span></p><p><br/></p><p><br/></p><p><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">焊接的熱量使水分解為氫與氧，熱的氫和氧會穿透焊縫，降低了強度；另外這種方法不能在90米深以下作業，否則水壓太大導致不能產生電弧放電。</span></p><p><br/></p><p><br/></p><p style="text-align:center"><img src="/data/upload/image/20190419/1555661956400624.jpg" alt="水下焊接.jpg" width="546" height="325" border="0" vspace="0" title="水下焊接.jpg" style="width: 546px; height: 325px;"/></p><p><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";"> 干室焊接法：這種方法可用于深水作業，焊縫質量較好，但成本較高。具體方法是，首先，在需要修理的地方用一個堅固透明的塑料罩保護起來，然后充入壓縮氣體，把水排出，這樣在焊縫周圍的金屬是干的。然后，焊接室底部敞開，潛水員可在里面使用焊炬。室內的壓縮氣體阻止水進入。但焊接時產生的煙和蒸汽使工作人員看不清工作情況。</span></p><p><br/></p></div> <h3 class="tag">本文網址：http://www.popechart.com/news/712.html </h3> <h3 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