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font-size: 13px; line-height: 22px;">激光焊是以聚焦的激光束作为能源轰击被焊工件所产生的热量进行焊接的方法。与一般焊接方法相比，激光焊具有下面的特点:</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">① 聚焦后的激光具有很高的功率密度，焊接以深熔方式进行;</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">② 由于激光加热范围小，在同功率和焊接厚度条件下，焊接速度高;</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">③ 激光焊残余应力和变形小;</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">④ 可以焊接一般焊接方法难以焊接的材料，如高熔点金属等，甚至可用于非金属材料的焊接，如陶瓷、有机玻璃等;</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">⑤ 激光能反射、透射，能在空间传播相当距离而衰减很小，可进行远距离或一些难以接近部位的焊接;</span><br style="font-family: 宋体; font-size: 13px; line-height: 22px;" /> <span style="font-family: 宋体; font-size: 13px; line-height: 22px;">⑥ 与电子束焊相比，激光焊***大的特点是不需要真空室、不产生X射线。它的不足之处在于焊接厚度比电子束焊小，焊接一些高反射率的金属还比较困难，另一个问题就是设备投资比其他方法大。</span></p><div class="clear"></div> </div> <div class="blank30"></div> <div class="blank30"></div> <!--自动调用自定义字段--> <div class="blank20"></div> <div class="blank30"></div> <!-- 投票 --> <script src="/index.php?case=vote&act=view&aid=1868"></script> <!-- 自定义表单开始 --> <!-- 自定义表单结束 --> <script language="JavaScript"> function shutwin(){ window.close(); return;} </script> <div class="blank30"></div> <div class="line_2"></div> <div id="tool"> <ul> <li><a href="javascript:window.print()" class="print">打印本文</a></li> <li><a href="javascript:shutwin()" class="close">关闭本页</a></li> <li style="width:90px; padding-left:5px;"><a href='/index.php?case=comment&act=list&aid=1868' class="t_4">评论</a></li> <li style="width:60px; padding-left:5px;">推荐度：</li> <li style="width:100px; padding-left:5px;"><img src="/images/star2.gif" border="0" /><img src="/images/star2.gif" border="0" /><img src="/images/star2.gif" border="0" /><img src="/images/star2.gif" border="0" /><img src="/images/star2.gif" border="0" /></li> </ul> </div><div class="line_2"></div> <div class="blank30"></div> <!-- 上下页开始 --> <div id="page"> <strong>上一篇：</strong><a href="/News/show_1838.html">不锈钢酸洗钝化的工艺处理控制</a> <div class="clear"></div> <strong>下一篇：</strong><a href="/News/show_1877.html">业清洗剂主要用于哪些行业</a> </div> <!-- 上下页结束 --> <!-- 相关文章开始 --> <!-- 相关文章结束 --> <!-- 评论框开始 --> <!-- 评论框结束 --> <div class="blank30"></div> <a title="返回顶部" href="#" class="clear floatright"><img alt="返回顶部" src="/template/ahhcqx_V_147/skin/images/gotop.gif"></a> <div class="blank30"></div></div> </div> </div> <!-- 右侧结束 --> <div class="c_bottom"></div> <div class="clear"></div> </div> <!-- 中部结束 --> <script defer> var obj = document.getElementById("content").getElementsByTagName("img"); 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