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<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>教?zhn)避免点焊中生的飞?/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>2018-05-21 <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>教?zhn)避?a href="http://www.haoyimin123.com/news/news_4105.shtml">点焊</a>中生的飞溅</p> <p>    在点焊过E中Q难免会(x)出现飞溅现象Q那么这U现象是如何产生的呢Q我们应当如何避免呢Q就q个问题Q沈阛_克焊Zؓ(f)大家做下详细讲解Q?/p> <p>正常来讲Q焊接过E中出现火花飞溅是正常的现象Q如果说火花q大的话Q也有可能是一些外在元素所D的,下面来分析几点外在元素:(x)</p> <p>1、工件表面清理不q净Q没有进行修或Ҏ(gu)U篏q多所D的?/p> <p>2、焊接参数设|不规范Q不W合工g标准?/p> <p>而且飞溅也可分ؓ(f)前期飞溅和后期飞溅:(x)</p> <p>前期飞溅Q焊件清理不合格、接触面上压强分布严重不均匀Q造成局部电(sh)密度过高引L(fng)早期熔化Q此时因无塑性保护必然发生飞溅现象?/p> <p>预防措施Q工作中加强焊g清理Q注意预压前的对中,有条件时可采用渐升电(sh)或增加预热甉|来减慢加热速度Q避免早期熔化而引起飞溅?/p> <p>后期飞溅Q熔化核?j)长大过渡,出甉|压力有效作用范围Q从而冲破塑性环在径向造成内飞溅,在u向冲破表面造成外飞溅,q种情况一般生在甉|较大、通电(sh)旉q长的场合,可用~短通电(sh)旉?qing)减?sh)的Ҏ(gu)来防止?/p> <p>通常来讲Q飞溅会(x)影响外观Q其ơ生的疤痕影响耐腐蚀?qing)疲x(chng)能Q内部飞溅的D疾有可能在q行时脱落,如进入管路(如a(b))(j)造成堵塞{严重事故?/p> <p> </p> <p> </p> <p> </p> <p>                                                   --沈阳威克创新焊接讑֤有限公司</p> <p> </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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