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border-left-width: 1px; border-right-style: solid; border-right-width: 1px; border-bottom-style: solid; border-bottom-width: 1px" bordercolor="#1a7db3"> <TABLE width="212" height="48" border="0" align="center" cellPadding="0" cellSpacing="0"> <TBODY> <TR> <TD align="left" vAlign="center" background="/images/contact.jpg"> <table width="210" border="0" cellpadding="0" cellspacing="0"> <tr> <td height="24"> <span><strong>沈阳威克创新焊接讑֤有限公司</strong></span> </td> </tr> <tr> <td height="24">?sh)?024-31029733 31029732</td> </tr> <tr> <td height="24">传真:024-62665536</td> </tr> <tr> <td height="24">手机:13840081050</td> </tr> <tr> <td height="24">E-mail:shenyangweike@163.com</td> </tr> <tr> <td height="24">地址:沈阳?jng)于z区沈大?46-2?/td> </tr> </table> </TD> </TR> </TBODY> </TABLE> </td> </tr> </table> </td> <td height="309" width="10"> </td> <td height="309" width="728" valign="top"> <table cellpadding="0" width="728" style="border-collapse: collapse; border-left-style:solid; border-left-width:1px; border-right-style:solid; border-right-width:1px; border-top-width:1px; border-bottom-style:solid; border-bottom-width:1px" height="484" bordercolor="#1A7DB3"> <tr> <td height="28" background="/images/Title07.jpg"><span id="qsoucqg" class="STYLE4">    新闻中心(j) </span></td> </tr> <tr> <td width="728" align="center" valign="top" style="line-height: 200%; padding-left: 5px; padding-top: 5px; color:#333333"> <table width="700" border="0" align="CENTER" cellpadding="0" cellspacing="0" style="margin-top:5px;"> <tr> <td><table width="722" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="30" height="36"> </td> <td width="673" align="center" style="color:#000000; font-size:16px; font-weight:bold"> <h1>_֯?sh)阻焊机知识讲?/h1> </td> <td width="51"> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> </tr> </table></td> </tr> <tr> <td align="center" style="color:#999999"><strong>发布旉Q?/strong>2017-06-14 <strong>来源Q?/strong>沈阳威克创新焊接讑֤有限公司 </td> </tr> <tr> <td height="20"> </td> </tr> <tr> <td> <p>_֯?sh)阻点焊是利用冶金的方式金属材料高效率的连接在一L(fng)Ҏ(gu)Q在生刉业界被q泛的用,</p> <p>焊接时应注意的几点要素:(x)</p> <p>甉|密度Q这是指单位横截面中的电(sh)|甉|密度保持E_的情况下直接影响焊核的Ş成,当多ơ焊接后Q接头面增大Q电(sh)密度减时Q容易生虚焊或者无法焊接?/p> <p>工g表面的状态:(x)工g表面的氧化物、介质、a(b)污会(x)增加接触?sh)阻Q因与厚重的氧化物不能甉|被顺利的通过Q局部的导通,׃甉|密度q大?x)引起飞溅和表面烧损Q所以彻底清除工件表面是保证优质焊接的基本条件?/p> <p>甉|的极性效应:(x)焊接时电(sh)单方向动Q导致某一侧电(sh)极出发热量较多,q而该电(sh)机的损耗大于另一甉|Q这个现象称为电(sh)极的单侧损耗现象,极性效应可以通过交流点焊机、极性切换式点焊机双向电(sh),使之发热?qing)损耗程度相同消除积极效应?/p> <p>该设备可用于?sh)子、电(sh)器、电(sh)真空、五金等各行业金属结构的l装焊接Q及(qing)各种甉|(镍氢、镍镉、锂甉|)的极ѝ负极针、汇片的焊接?/p> <p> </p> <p> </p> <p> </p> <p>                                --沈阳威克创新焊接讑֤有限公司</p> </td> </tr> <tr> <td height="20"> </td> </tr> </table></td> </tr> </table> </td> </tr> </table> ?table border="0" width="970" height="68" cellspacing="1" cellpadding="0" background="/images/bott_bg.gif" align="center"> <tr> <td height="20" > <p align="center" style="padding-top:10px"> <font color="#FFFFFF">版权所?沈阳威克创新焊接讑֤有限公司Copyright ©2007-2018 </font> </p><br /> </td> </tr> <tr> <td> <p align="center"> 地址Q沈阛_(jng)于洪区沈大\146-2?nbsp; ?sh)话Q?24-31029733 31029732  传真Q?24-62665536  E-mailQ?shenyangweike@163.com   <script type="text/javascript"> var _bdhmProtocol = (("https:" == document.location.protocol) ? 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