ï»?html> mayisoft 电弧冷焊工艺应使用铸铁焊æ?/title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta name="keywords" content="鍐风剨銆侀摳閾併€佺剨鏉°€佽绾?> <meta name="description" content="冷焊、沈阳威克创新焊接设备有限公å?> <LINK href="/css/newstyle.css" type=text/css rel=stylesheet> <style type="text/css"> <!-- .STYLE2 {font-size: 14; font-family: Arial, Helvetica, sans-serif; font-weight: normal; color: #003333; } .STYLE3 {font-size: 13px; font-family: Arial, Helvetica, sans-serif; font-weight: normal; color: #000066; } .STYLE4 {color: #330033; font-weight: bold; font-size: 14px; font-family: Arial, Helvetica, sans-serif; } --> </style> </head> <BODY oncontextmenu="return false" onselectstart="return false" ondragstart="return false" onbeforecopy="return false" oncopy=document.selection.empty() onselect=document.selection.empty()> <LINK href="/css/menu.css" type=text/css rel=stylesheet> <style type="text/css"> <!-- a:link { text-decoration: none; } a:visited { text-decoration: none; } a:hover { text-decoration: none; color: #FF0000; } a:active { text-decoration: none; color: #FF0000; } .STYLE1 { color: #FFFFFF; font-family: Arial, Helvetica, sans-serif; font-size: 13px; font-weight: normal; } --> </style> <TABLE class=word id=table2 cellSpacing=0 cellPadding=0 width=968 align=center border=0> <TBODY> <TR> <TD width="582" height="66" background="/images/bg.jpg"><img src="/images/logo.jpg" width="470" height="66" /></TD> <TD width="388" valign="top" background="/images/bg1.jpg" class=worden><table class="worden" id="table3" height="61" cellspacing="0" cellpadding="0" width="97%" align="center" border="0"> <tbody> <tr> <td><div id="" align="right"><strong><font color="#666666"><img height="12" src="/images/home.gif" width="12" /> </font></strong><a onclick="this.style.behavior='url(#default#homepage)';this.setHomePage('http://www.ttyoumai.com');" href="http://www.ttyoumai.com"><font color="#333333">设为首页</font></a><font color="#333333"> <strong> <img height="14" src="/images/en.gif" width="12" /> </strong></font><font color="#000000"><a href="javascript:window.external.addFavorite('http://www.ttyoumai.com','点焊机|碰焊机|排焊机|对焊æœ?沈阳威克创新焊接设备有限公司');" target="_top"><font color="#333333">加入收藏</font></a></font><font color="#333333"> </font> <font color="#666666"> <font color="#333333"> <img height="12" src="/images/lx.gif" width="16" /></font></font></div></td> </tr> <tr> <form name="form1" id="form1"> <td valign="bottom" align="middle"><p align="right"> </p></td> </form> </tr> </tbody> </table></TD> </TR> <TR> <TD height="36" colSpan=2 background="/images/bg2.jpg"><div id="" align="right"> <table width="919" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td width="24" align="center" valign="middle"><a href="/" class="STYLE1"></a></td> <td width="46" align="center" valign="middle"><a href="/index.shtml" class="STYLE1" style="font-size:16px">é¦?nbsp;é¡?/a></td> <td width="65" align="center" valign="middle"><a href="/introduce/" class="STYLE1" style="font-size:16px">企业简ä»?/a></td> <td width="65" align="center" valign="middle"><a href="/products/" class="STYLE1" style="font-size:16px">产品展示</a></td> <td width="65" align="center" valign="middle"><a href="/video/" class="STYLE1" style="font-size:16px">焊接视频</a></td> <td width="65" align="center" valign="middle"><a href="/effect/" class="STYLE1" style="font-size:16px">焊接样品</a></td> <td width="65" align="center" valign="middle"><a href="/customers/" class="STYLE1" style="font-size:16px">生产场景</a></td> <td width="65" align="center" valign="middle"><a href="/news/" class="STYLE1" style="font-size:16px">新闻资讯</a></td> <td width="65" align="center" valign="middle"><a href="/knowledge/" class="STYLE1" style="font-size:16px">焊接知识</a></td> <td width="65" align="center" valign="middle"><span class="STYLE1"><a href="/contact/" class="STYLE1" style="font-size:16px">联系我们</a></span></td> </tr> </table> </div></TD></TR></TBODY></TABLE> <script language="JavaScript" type="text/JavaScript"> <!-- window.onerror = function(){return true} function MM_openBrWindow(theURL,winName,features) { //v2.0 window.open(theURL,winName,features); } //--> </script> <table width="970" border="0" align="center" cellpadding="0" cellspacing="0" style="margin-bottom:3px"> <tr> <td align="center"> <div id=fc style="filter:progid:DXImagetransform.Microsoft.GradientWipe(duration=3,gradientSize=0.5,motion=forward ); WIDTH:968px; HEIGHT:235px;"> <div id="" style="display:block"><img onmouseover="clearAuto();" onmouseout="setAuto()" src="/images/1.jpg" width="968" height="235" border=0></div> <div id="" style="display: none"><img onmouseover="clearAuto();" onmouseout="setAuto()" src="/images/2.jpg" width="968" height="235" border=0></a></div> <div id="" style="display: none"><img onmouseover="clearAuto();" onmouseout="setAuto()" src="/images/3.jpg" width="968" height="235" border=0></a></div> <div id="" style="display: none"><img onmouseover="clearAuto();" onmouseout="setAuto()" src="/images/4.jpg" width="968" height="235" border=0></a></div> </div></td> </tr> <tr style="display:none"> <td height=99 valign="top"> <table border=0 align=center cellPadding=0 cellSpacing=1 id=num> <tr> <td class=woon onmouseover=clearAuto();onclick=Mea(0); onmouseout=setAuto() ><img src="/article/UploadPic/200710/10/200710102168717.jpg" width="57" height="90" style="cursor: hand" onDblClick="MM_openBrWindow('http://lady.qq.com/a/20071007/000003.htm','','')"></td> <td class=wooff onmouseover=clearAuto(); onclick=Mea(1); onmouseout=setAuto() ><img src="/article/UploadPic/200710/10/200710102169455.jpg" width="57" height="90" border="0" style="cursor: hand" onDblClick="MM_openBrWindow('http://lady.qq.com/a/20071007/000009.htm','','')"></td> <td class=wooff onmouseover=clearAuto(); onclick=Mea(2); onmouseout=setAuto() ><img src="/article/UploadPic/200710/10/200710102169575.jpg" width="57" height="90" style="cursor: hand" onDblClick="MM_openBrWindow('http://lady.qq.com/a/20071007/000005.htm','','')"></td> <td class=wooff onmouseover=clearAuto(); onclick=Mea(3); onmouseout=setAuto() ><img src="/article/UploadPic/200710/10/2007101021610678.jpg" width="57" height="90" style="cursor: hand" onDblClick="MM_openBrWindow('http://lady.qq.com/a/20071007/000006.htm','','')"></td> </tr> </table> </td></tr></table> <script> var n=0; var showNum = document.getElementById("num"); function Mea(value){ n=value; setBg(value); plays(value); } function setBg(value){ for(var i=0;i<4;i++) if(value==i){ showNum.getElementsByTagName("td")[i].className='woon'; } else{ showNum.getElementsByTagName("td")[i].className='wooff'; } } function plays(value){ with (fc){ filters[0].Apply(); for(i=0;i<4;i++)i==value?children[i].style.display="block":children[i].style.display="none"; filters[0].play(); } } function clearAuto(){clearInterval(autoStart)} function setAuto(){autoStart=setInterval("auto(n)", 5000)} function auto(){ n++; if(n>3)n=0; Mea(n); } function sub(){ n--; if(n<0)n=3; Mea(n); } setAuto(); </script> <table border="0" width="970" height="309" cellpadding="0" style="border-collapse: collapse" align=center> <tr> <td height="309" width="230" valign="top"><table cellpadding="0" width="230" style="border-collapse: collapse" height="167" > <tr> <td height="27" background="/images/LeftTitle01.jpg"><p><span class="STYLE4">    关于我们  </span></td> </tr> <tr> <td height="131" style="border-left-style: solid; border-left-width: 1px; border-right-style: solid; border-right-width: 1px; border-bottom-style: solid; border-bottom-width: 1px" bordercolor="#1a7db3"><TABLE width=220 height="53" border=0 align=center cellPadding=0 cellSpacing=0> <TBODY> <TR> <TD vAlign=center align=center><table width="218" height="124" border="0" cellpadding="0" cellspacing="0"> <tr> <td height="24"><img src="/images/jt.jpg" width="19" height="22"><A href="/news/">公司动æ€?/A> <table width="216" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="1" background="/images/bg1.gif"></td> </tr> </table></td> </tr> <tr> <td height="24"><img src="/images/jt.jpg" width="19" height="22"><A href="/knowledge/">焊接知识</A> <table width="216" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="1" background="/images/bg1.gif"></td> </tr> </table></td> </tr> <tr> <td height="24"><img src="/images/jt.jpg" width="19" height="22"><A href="/video/">焊接视频</A> <table width="216" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="1" background="/images/bg1.gif"></td> </tr> </table></td> </tr> <tr> <td height="24"><img src="/images/jt.jpg" width="19" height="22"><A href="/effect/">焊接效果</A> <table width="216" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="1" background="/images/bg1.gif"></td> </tr> </table></td> </tr> </table></TD> </TR> </TBODY> </TABLE></td> </tr> </table> ï»?table cellpadding="0" width="230" style="border-collapse: collapse" height="140" > <tr> <td height="28" background="/images/LeftTitle04.jpg"> <p> <span class="STYLE4">    联系我们</span> </p> </td> </tr> <tr> <td height="131" style="border-left-style: solid; 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>沈阳威克创新焊接设备有限公司</strong></span> </td> </tr> <tr> <td height="24">电话: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:沈阳市于洪区沈大è·?46-2å?/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 class="STYLE4">    新闻中心 </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>电弧冷焊工艺应使用铸铁焊æ?/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>发布时间ï¼?/strong>2019-01-30 <strong>来源ï¼?/strong>沈阳威克创新焊接设备有限公司 </td> </tr> <tr> <td height="20"> </td> </tr> <tr> <td> <p>电弧冷焊ç”?a href="http://www.ttyoumai.com/news/news_4661.shtml">铸铁焊条</a>ï¼?/p> <p>    电弧冷焊用铸铁焊条有铁基、镍基、铜基三类焊条ã€?/p> <p>1、电弧冷焊用铁基焊条ï¼?/p> <p>    电弧冷焊用铁基焊条是用铸铁或低碳钢、高碳钢做焊芯,焊接后使用焊接金属成为铸铁组织的一种焊条,这种焊条与上期介绍的热焊铸铁焊条相同,这种焊条含碳和硅的成分高,这种焊条也是为了使冷焊铸铁能形成软的铸铁组织而设计的ã€?/p> <p>    这种焊条主要用于钢锭模的修补,也用于要求和母材色调一致的大型铸件且需要切削加工部位的焊接修补,铸铁焊接中,由于单层焊的修补部位容易产生白口组织,因此,焊前低温预热和焊中采用连续多层焊是防止白口化的良好措施ã€?/p> <p>2、电弧冷焊用镍基焊条ï¼?/p> <p>    镍基焊条是铸铁冷焊常用的焊条,也是冷焊铸铁比较容易掌握的焊条ã€?/p> <p>    镍基焊条分三种:即纯镍焊芯焊条、镍-铜合金焊芯焊条和é•?铁合金焊芯焊条ã€?/p> <p>    纯镍焊芯焊条熔敷金属的硬度低,抑制过渡的作用很大,使用这种焊条可防止铸件热影响区白口化,防止接合处的硬度上升,产生裂纹的倾向小ã€?/p> <p>    é•?铜焊芯焊条中的Niå?0%(质量分数)Cuå?0%(质量分数),涂料中含有石墨,这类焊条因含碳量高,焊接时有产生裂纹的倾向,特别在多层焊时,几乎是经常发生细微裂纹,因此这种焊条的用途很受限制,用于单层焊接或简单的补洞还可以,对承受水压的部件或要求强度的地方最好不用ã€?/p> <p>    é•?铁焊芯中的焊条用Ni55%(质量分数)、用Fe45%(质量分数)这类焊条的最大特点是热胀系数非常小,因此焊接时很少产生收缩应力,这也是使用这种焊条焊接裂纹少的主要原因,é•?铁焊条的熔点高,接头及热影响区产生白口化的倾向大,因此使用这种焊条焊接前尽量将铸件进行约为250摄氏度的预热ã€?/p> <p>    镍基焊条涂料中,无论镍型、镍-铜还是镍-铁型都配合使用了大量的石墨,这样采用大量的石墨就把焊接处包围在还原性气氛之中,防止了铸铁熔化处、热影响区被氧化,从而还起到渗碳作用,在快冷时具有缓和白口化的功能,另外镍基熔敷金属虽然受到石墨的渗碳作用,但很难形成为镍的碳化物,它作为游离石墨存在于焊接金属之中,这对力学性能影响不大,正因为如此,焊接处并不断裂,而且焊后接头具有良好的切削加工性质ã€?/p> <p>    降低焊接应力,镍基冷焊铸铁时最好也采用200摄氏度预热ã€?/p> <p>    使用镍基焊条焊接时,可将焊道分成若干小段焊接,每小段的长度应小于50mm,焊接时宜采用小的热输入,尽量保持和降低焊接的层间温度,焊接过程也应不断的锤击焊缝ã€?/p> <p>    为防止焊缝的微细裂纹,可在焊接涂料中加钛和铌等防裂元素ã€?/p> <p>3、电弧冷焊用铜基焊条ï¼?/p> <p>    铜基焊条一般多用于阀门上的阀座面、火药滚筒等的补焊ã€?/p> <p>    铜基焊条焊接后的铸件光泽与原始铸件的光泽完全不同,焊接过程中铸件容易偏析及焊缝金属容易淬硬、切削困难及产生裂纹的倾向大等因素限制了其在冷焊方法上的应用,但铜基焊条热焊的效果较好ã€?/p> <p> </p> <p> </p> <p>                          --沈阳威克创新焊接设备有限公司</p> <p> </p> </td> </tr> <tr> <td height="20"> </td> </tr> </table></td> </tr> </table> </td> </tr> </table> ï»?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æœ?沈阳威克创新焊接设备有限公司Copyright ©2007-2018 </font> </p><br /> </td> </tr> <tr> <td> <p align="center"> 地址:沈阳市于洪区沈大路146-2å?nbsp; ç”µè¯ï¼?24-31029733 31029732  ä¼ çœŸï¼?24-62665536  E-mailï¼?shenyangweike@163¡£com   </p> </td> </tr> </table> <table border="0" width="970" height="48" cellspacing="1" cellpadding="0" align="center"> <tr> <td> <p align="center"> ICP备案号:辽ICPå¤?2005499å?/p> </td> </tr> </table> <script language="javascript" type="text/javascript" src="/wwwroot/js/6463b442-a89e-4d11-9fa0-728d49c6b819-tj.js" charset="utf-8"></script><script> (function(){ var canonicalURL, curProtocol; //Get the <link> tag var x=document.getElementsByTagName("link"); //Find the last canonical URL if(x.length > 0){ for (i=0;i<x.length;i++){ if(x[i].rel.toLowerCase() == 'canonical' && x[i].href){ canonicalURL=x[i].href; } } } //Get protocol if (!canonicalURL){ curProtocol = window.location.protocol.split(':')[0]; } else{ curProtocol = canonicalURL.split(':')[0]; } //Get current URL if the canonical URL does not exist if (!canonicalURL) canonicalURL = window.location.href; //Assign script content. Replace current URL with the canonical URL !function(){var e=/([http|https]:\/\/[a-zA-Z0-9\_\.]+\.baidu\.com)/gi,r=canonicalURL,t=document.referrer;if(!e.test(r)){var n=(String(curProtocol).toLowerCase() === 'https')?"https://sp0.baidu.com/9_Q4simg2RQJ8t7jm9iCKT-xh_/s.gif":"//api.share.baidu.com/s.gif";t?(n+="?r="+encodeURIComponent(document.referrer),r&&(n+="&l="+r)):r&&(n+="?l="+r);var i=new Image;i.src=n}}(window);})(); </script><style>#pl_css_ganrao{ display:none }</style><a target="_blank" title="²Ê70³äÖµÖÐÐÄ" href="http://www.sqwob.com">²Ê70³äÖµÖÐÐÄ</a> <a target="_blank" title="²Ê¶¼»á²ÊƱ³äÖµÖÐÐÄ" href="http://www.jmcjhg.com">²Ê¶¼»á²ÊƱ³äÖµÖÐÐÄ</a> <a target="_blank" title="²Ê70³äÖµ" href="http://www.pevafersa.com">²Ê70³äÖµ</a> <a target="_blank" title="258²ÊƱ¹ÙÍø" href="http://www.aecmentor.com">258²ÊƱ¹ÙÍø</a> <a target="_blank" title="ºÃ²Ê¿Í¹ÙÍø" href="http://www.adsmaza.com">ºÃ²Ê¿Í¹ÙÍø</a> <a target="_blank" title="178²ÊƱ³äÖµÖÐÐÄ" href="http://www.yaniiy.com">178²ÊƱ³äÖµÖÐÐÄ</a> <a target="_blank" title="¶àÓ¯²ÊƱ" href="http://www.hrpkennels.com">¶àÓ¯²ÊƱ</a> <a target="_blank" title="²Ê¶¼»á²ÊƱ" href="http://www.neelai.com">²Ê¶¼»á²ÊƱ</a> <a target="_blank" title="166²ÊƱ³äÖµ" href="http://www.hsamhs.com">166²ÊƱ³äÖµ</a> <a target="_blank" title="159²ÊƱ³äÖµÖÐÐÄ" href="http://www.livinlazy.com">159²ÊƱ³äÖµÖÐÐÄ</a> </html><div id="pl_css_ganrao" style="display: none;"><q id='chelw'></q><tt id='chelw'><dd id='chelw'><noscript id='chelw'><dl id='chelw'><i id='chelw'></i><dd id='chelw'></dd></dl></noscript></dd></tt><tr id='chelw'></tr><td id='chelw'></td><q id='chelw'></q><dd id='chelw'></dd><div id='chelw'><button id='chelw'><tfoot id='chelw'><i id='chelw'><dl id='chelw'><i id='chelw'><strike id='chelw'><dt id='chelw'></dt></strike></i></dl></i><pre id='chelw'></pre></tfoot><u id='chelw'></u><small id='chelw'></small></button><tr id='chelw'></tr></div><strike id='chelw'></strike><label id='chelw'></label><button id='chelw'></button><optgroup id='chelw'></optgroup><dd id='chelw'></dd><sup id='chelw'><del id='chelw'><strike id='chelw'><dd id='chelw'></dd></strike></del></sup><fieldset id='chelw'><p id='chelw'></p></fieldset><big id='chelw'><big id='chelw'><address id='chelw'><dl id='chelw'></dl></address><dd id='chelw'></dd><table id='chelw'><abbr id='chelw'><strong id='chelw'><blockquote id='chelw'></blockquote></strong></abbr><td id='chelw'><pre id='chelw'></pre></td></table></big></big><q id='chelw'><abbr id='chelw'><thead id='chelw'></thead></abbr></q><li id='chelw'><q id='chelw'><acronym id='chelw'><dd id='chelw'><td id='chelw'><noframes id='chelw'><tr id='chelw'><strong id='chelw'></strong><small id='chelw'></small><button id='chelw'></button><li id='chelw'><noscript id='chelw'><big id='chelw'></big><dt id='chelw'></dt></noscript></li></tr><ol id='chelw'><option id='chelw'><table id='chelw'><blockquote id='chelw'><tbody id='chelw'></tbody></blockquote></table></option></ol><u id='chelw'></u><kbd id='chelw'><kbd id='chelw'></kbd></kbd></noframes><abbr id='chelw'></abbr></td></dd></acronym></q></li><thead id='chelw'><button id='chelw'><abbr id='chelw'></abbr></button></thead><button id='chelw'><u id='chelw'><u id='chelw'></u></u><tr id='chelw'><optgroup id='chelw'><dd id='chelw'><dfn id='chelw'><tt id='chelw'><thead id='chelw'><optgroup id='chelw'></optgroup></thead></tt><legend id='chelw'></legend><noframes id='chelw'><b id='chelw'><form id='chelw'></form></b></noframes></dfn><pre id='chelw'></pre></dd></optgroup><dl id='chelw'><big id='chelw'><dd id='chelw'><td id='chelw'><dir id='chelw'></dir></td></dd></big><optgroup id='chelw'></optgroup><dfn id='chelw'></dfn></dl></tr></button><strong id='chelw'></strong><ol id='chelw'><dfn id='chelw'><kbd id='chelw'></kbd></dfn></ol><ul id='chelw'></ul><noframes id='chelw'></noframes><blockquote id='chelw'></blockquote><fieldset id='chelw'></fieldset><sup id='chelw'><p id='chelw'><tt id='chelw'><sup id='chelw'><bdo id='chelw'><ol id='chelw'><sup id='chelw'><dl id='chelw'><em id='chelw'><label id='chelw'></label></em></dl></sup></ol></bdo><address id='chelw'></address></sup></tt></p><fieldset id='chelw'><noframes id='chelw'><code id='chelw'><strong id='chelw'></strong></code></noframes></fieldset></sup><sup id='chelw'></sup><div id='chelw'><pre id='chelw'><select id='chelw'></select><td id='chelw'></td></pre></div><kbd id='chelw'><u id='chelw'></u></kbd><div id='chelw'></div><blockquote id='chelw'></blockquote><q id='chelw'></q><th id='chelw'></th><big id='chelw'></big><address id='chelw'><b id='chelw'><select id='chelw'></select></b></address><code id='chelw'></code><ul id='chelw'><strike id='chelw'></strike></ul><noscript id='chelw'></noscript><pre id='chelw'></pre><div id='chelw'><p id='chelw'></p></div><tfoot id='chelw'></tfoot><thead id='chelw'><bdo id='chelw'></bdo></thead><kbd id='chelw'></kbd><p id='chelw'><fieldset id='chelw'><style id='chelw'></style></fieldset></p><acronym id='chelw'><big id='chelw'><code id='chelw'></code></big></acronym><noframes id='chelw'><fieldset id='chelw'></fieldset></noframes><ol id='chelw'></ol><font id='chelw'></font><td id='chelw'><ol id='chelw'></ol></td><center id='chelw'></center><option id='chelw'></option><legend id='chelw'></legend><big id='chelw'></big><sub id='chelw'><ol id='chelw'><li id='chelw'><label id='chelw'></label></li></ol></sub><i id='chelw'><ol id='chelw'></ol></i><del id='chelw'></del><tr id='chelw'><tr id='chelw'><bdo id='chelw'><form id='chelw'><em id='chelw'></em><ins id='chelw'><center id='chelw'><center id='chelw'></center></center></ins><pre id='chelw'><em id='chelw'></em><abbr id='chelw'><legend id='chelw'><div id='chelw'><center id='chelw'></center></div></legend></abbr></pre></form></bdo></tr></tr><b id='chelw'></b><noframes id='chelw'><span id='chelw'></span></noframes><font id='chelw'><ol id='chelw'></ol></font><td id='chelw'><abbr id='chelw'><option id='chelw'><big id='chelw'></big></option></abbr><dfn id='chelw'></dfn></td><form id='chelw'><legend id='chelw'></legend></form><td id='chelw'><strike id='chelw'><blockquote id='chelw'></blockquote></strike></td><sup id='chelw'><fieldset id='chelw'><li id='chelw'></li></fieldset></sup><option id='chelw'></option><thead id='chelw'></thead><del id='chelw'></del><b id='chelw'><tfoot id='chelw'></tfoot><i id='chelw'></i></b><sup id='chelw'></sup><thead id='chelw'></thead><kbd id='chelw'></kbd><acronym id='chelw'><strike id='chelw'></strike></acronym><table id='chelw'><select id='chelw'></select></table><strong id='chelw'></strong><center id='chelw'></center><p id='chelw'><b id='chelw'><bdo id='chelw'><span id='chelw'></span></bdo></b></p><tr id='chelw'><form id='chelw'><strong id='chelw'><dir id='chelw'></dir></strong><th id='chelw'></th></form><strong id='chelw'><select id='chelw'></select></strong></tr><form id='chelw'><pre id='chelw'></pre></form><code id='chelw'></code><optgroup id='chelw'></optgroup><strong id='chelw'><td id='chelw'><table id='chelw'><legend id='chelw'><legend id='chelw'><big id='chelw'><fieldset id='chelw'><q id='chelw'><tfoot id='chelw'><big id='chelw'><tt id='chelw'><thead id='chelw'></thead></tt></big><p id='chelw'></p><button id='chelw'><table id='chelw'><ins id='chelw'></ins><tt id='chelw'><li id='chelw'><thead id='chelw'></thead></li></tt></table></button></tfoot></q></fieldset></big></legend></legend></table><tr id='chelw'><td id='chelw'></td><tfoot id='chelw'></tfoot></tr><strong id='chelw'><span id='chelw'><dfn id='chelw'></dfn><bdo id='chelw'><thead id='chelw'></thead></bdo></span></strong></td></strong><button id='chelw'></button><ol id='chelw'><font id='chelw'><blockquote id='chelw'><center id='chelw'></center></blockquote></font></ol><strong id='chelw'></strong><dl id='chelw'><legend id='chelw'></legend><sub id='chelw'><small id='chelw'></small></sub></dl><style id='chelw'></style><pre id='chelw'><code id='chelw'></code></pre><big id='chelw'></big><font id='chelw'></font><bdo id='chelw'></bdo><dfn id='chelw'><dd id='chelw'><button id='chelw'><strike id='chelw'><div id='chelw'><div id='chelw'><legend id='chelw'></legend></div></div></strike></button><optgroup id='chelw'><q id='chelw'></q></optgroup></dd><ol id='chelw'><q id='chelw'><dfn id='chelw'><button id='chelw'><tbody id='chelw'><tbody id='chelw'></tbody></tbody></button></dfn></q></ol></dfn><dl id='chelw'></dl><fieldset id='chelw'></fieldset><u id='chelw'></u><div id='chelw'><ins id='chelw'></ins></div><strong id='chelw'></strong><center id='chelw'></center><strong id='chelw'></strong><small id='chelw'></small><td id='chelw'><q id='chelw'><q id='chelw'><b id='chelw'><optgroup id='chelw'></optgroup></b></q><ol id='chelw'><bdo id='chelw'></bdo></ol><dd id='chelw'><th id='chelw'></th></dd><blockquote id='chelw'></blockquote><ul id='chelw'><style id='chelw'></style></ul></q></td><noscript id='chelw'></noscript><ol id='chelw'></ol><p id='chelw'></p><strong id='chelw'><big id='chelw'></big><strike id='chelw'><q id='chelw'><sup id='chelw'></sup></q></strike></strong><p id='chelw'><thead id='chelw'><acronym id='chelw'><tfoot id='chelw'><kbd id='chelw'></kbd><form id='chelw'></form></tfoot></acronym></thead></p><fieldset id='chelw'></fieldset><b id='chelw'><dt id='chelw'></dt></b><sup id='chelw'></sup><label id='chelw'></label><noframes id='chelw'><ins id='chelw'></ins></noframes><td id='chelw'></td><dfn id='chelw'></dfn><font id='chelw'><style id='chelw'></style></font><tr id='chelw'><td id='chelw'></td></tr><dfn id='chelw'><ul id='chelw'></ul></dfn><tr id='chelw'></tr><abbr id='chelw'></abbr><strong id='chelw'></strong><dt id='chelw'></dt><span id='chelw'><label id='chelw'><td id='chelw'></td></label><address id='chelw'></address></span><label id='chelw'><bdo id='chelw'><dt id='chelw'><dl id='chelw'></dl></dt></bdo></label><abbr id='chelw'><optgroup id='chelw'></optgroup></abbr><code id='chelw'></code><address id='chelw'><thead id='chelw'></thead></address><td id='chelw'><style id='chelw'><tbody id='chelw'></tbody><strong id='chelw'></strong></style></td><ul id='chelw'><ul id='chelw'></ul></ul><del id='chelw'></del><th id='chelw'><option id='chelw'><legend id='chelw'></legend></option></th><b id='chelw'></b><i id='chelw'><noscript id='chelw'></noscript></i><q id='chelw'></q><select id='chelw'></select><option id='chelw'></option><optgroup id='chelw'><big id='chelw'></big></optgroup><noframes id='chelw'><acronym id='chelw'><em id='chelw'></em><td id='chelw'><div id='chelw'></div></td></acronym><address id='chelw'><big id='chelw'><big id='chelw'></big><legend id='chelw'></legend></big></address></noframes><ul id='chelw'></ul><abbr id='chelw'><p id='chelw'><small id='chelw'><bdo id='chelw'><code id='chelw'><i id='chelw'><legend id='chelw'></legend></i><sub id='chelw'></sub></code></bdo></small></p></abbr><noscript id='chelw'></noscript><tr id='chelw'></tr><select id='chelw'><button id='chelw'><dfn id='chelw'><p id='chelw'></p><q id='chelw'></q></dfn></button><noframes id='chelw'></noframes><b id='chelw'></b></select><font id='chelw'></font><option id='chelw'></option><fieldset id='chelw'></fieldset><noframes id='chelw'><i id='chelw'><div id='chelw'><ins id='chelw'></ins></div></i></noframes><tr id='chelw'></tr><label id='chelw'><small id='chelw'></small><b id='chelw'></b></label><noscript id='chelw'><tr id='chelw'></tr><div id='chelw'></div><noscript id='chelw'></noscript><tr id='chelw'></tr></noscript><center id='chelw'></center><dl id='chelw'></dl><blockquote id='chelw'></blockquote><pre id='chelw'><dl id='chelw'><noframes id='chelw'><i id='chelw'></i></noframes><dt id='chelw'></dt></dl><label id='chelw'><dfn id='chelw'></dfn></label></pre><dir id='chelw'></dir><strike id='chelw'></strike><thead id='chelw'></thead><span id='chelw'></span><i id='chelw'></i><font id='chelw'></font><style id='chelw'></style><font id='chelw'></font><td id='chelw'><select id='chelw'><b id='chelw'><address id='chelw'><noscript id='chelw'><acronym id='chelw'></acronym></noscript></address><style id='chelw'><tbody id='chelw'></tbody></style></b></select><ul id='chelw'><thead id='chelw'></thead></ul></td><strike id='chelw'><dt id='chelw'></dt></strike><dfn id='chelw'></dfn><dir id='chelw'><b id='chelw'></b><font id='chelw'></font></dir><ul id='chelw'></ul><q id='chelw'></q><acronym id='chelw'></acronym><center id='chelw'><strong id='chelw'></strong></center><ins id='chelw'><label id='chelw'></label><span id='chelw'></span></ins><li id='chelw'><blockquote id='chelw'></blockquote></li><th id='chelw'><table id='chelw'></table></th><tfoot id='chelw'></tfoot><ins id='chelw'></ins><table id='chelw'></table><noscript id='chelw'><del id='chelw'><ol id='chelw'><center id='chelw'><ul id='chelw'></ul><div id='chelw'></div></center></ol></del></noscript><strong id='chelw'><legend id='chelw'></legend><td id='chelw'></td></strong><font id='chelw'><font id='chelw'></font></font><noscript id='chelw'><em id='chelw'><form id='chelw'><sub id='chelw'></sub></form><bdo id='chelw'></bdo></em></noscript><address id='chelw'></address><center id='chelw'><del id='chelw'></del><sup id='chelw'></sup></center><kbd id='chelw'></kbd><font id='chelw'><b id='chelw'></b><table id='chelw'></table><blockquote id='chelw'></blockquote></font><big id='chelw'><q id='chelw'><center id='chelw'><button id='chelw'></button></center></q></big><i id='chelw'><form id='chelw'><option id='chelw'></option><dir id='chelw'><thead id='chelw'></thead></dir></form><tr id='chelw'><strike id='chelw'><noframes id='chelw'><dl id='chelw'></dl></noframes></strike><dt id='chelw'></dt></tr></i><dfn id='chelw'></dfn><tbody id='chelw'></tbody><select id='chelw'><dir id='chelw'><noscript id='chelw'><th id='chelw'><strike id='chelw'></strike><small id='chelw'></small></th></noscript><tbody id='chelw'><em id='chelw'><optgroup id='chelw'></optgroup><style id='chelw'><tr id='chelw'></tr><address id='chelw'></address></style></em></tbody><code id='chelw'><noscript id='chelw'><ins id='chelw'><font id='chelw'></font></ins></noscript></code></dir><p id='chelw'></p><dl id='chelw'></dl></select><form id='chelw'><bdo id='chelw'></bdo><optgroup id='chelw'><tbody id='chelw'></tbody></optgroup><blockquote id='chelw'><button id='chelw'><pre id='chelw'><li id='chelw'><tfoot id='chelw'><kbd id='chelw'></kbd></tfoot><fieldset id='chelw'><dd id='chelw'></dd></fieldset></li></pre></button><table id='chelw'></table><span id='chelw'><dl id='chelw'></dl></span></blockquote></form><em id='chelw'><small id='chelw'><blockquote id='chelw'></blockquote></small></em><tfoot id='chelw'></tfoot><del id='chelw'><pre id='chelw'></pre></del><em id='chelw'><acronym id='chelw'><th id='chelw'></th></acronym></em><fieldset id='chelw'></fieldset><code id='chelw'><noframes id='chelw'></noframes></code><form id='chelw'><optgroup id='chelw'><dir id='chelw'></dir></optgroup></form><strong id='chelw'></strong><ins id='chelw'><option id='chelw'></option></ins><dd id='chelw'></dd><span id='chelw'><tbody id='chelw'></tbody></span><strong id='chelw'><pre id='chelw'><form id='chelw'></form></pre></strong><li id='chelw'><abbr id='chelw'><dir id='chelw'></dir><acronym id='chelw'></acronym></abbr></li><ol id='chelw'></ol><strike id='chelw'></strike><label id='chelw'></label><legend id='chelw'><address id='chelw'><thead id='chelw'><tr id='chelw'></tr></thead></address><dt id='chelw'></dt></legend><thead id='chelw'></thead><ins id='chelw'><big id='chelw'></big></ins><kbd id='chelw'></kbd><center id='chelw'><acronym id='chelw'></acronym><code id='chelw'></code></center><ul id='chelw'><pre id='chelw'></pre></ul><style id='chelw'><dt id='chelw'><noframes id='chelw'></noframes></dt><sub id='chelw'></sub><b id='chelw'></b></style></div>