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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>碳素钢侧用碳素钢材焊条焊接理è®?/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>2018-10-25 <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><a href="/index.html">碳素钢侧用碳素钢材焊条焊æŽ?/a></p> <p>    对于基本较厚的复合板,在碳素钢侧采用碳素钢焊条施焊,此时碳素钢侧开35°å¡å£ï¼Œæ¿è¾¹ç•™1.5-2.0mm的钝边,对口后在碳素钢一侧用碳素焊条焊接,碳素钢侧焊好后,在不锈钢侧进行封底焊,最后在不锈钢侧用不锈钢焊条进行焊接ã€?/p> <p>复合钢板的角焊:</p> <p>    复合钢板有时因结构布置的需要也布置成角焊缝,角焊接的注意事项一般和对接焊的情况相同,只是A材和B材都是复合钢材的情况,而且复合钢材比较薄时,则要求熔深要浅ã€?/p> <p>角焊焊条的选择一般按以下几个要求ï¼?/p> <p>1、A材、B材都在基层侧的情况下,使用同一组成金属焊条ã€?/p> <p>2、A材、B材都是复合钢材时,可用复合钢材处使用的焊条ã€?/p> <p>焊接完成后,特别是复合钢材焊接处及其周围的熔渣和飞溅物必须清理干净,这点与固态焊情况相同ã€?/p> <p>不锈钢复合钢板的应用与焊接工艺:</p> <p>1、不锈钢复合钢板的组成与应用:钢复合钢板是一种新型材料,一般是由复层(不锈钢)和基层(普通碳素钢或低合金钢组),复层通常只有1.5-3.5mm厚,比单体不锈钢可节çœ?0-70%不锈钢,具有很大的经济效益,不锈钢复合钢板导热系数比单体不锈钢高1.5-2倍,因此特别淘气传热效率高的设备ã€?/p> <p>2、不锈钢复合板的焊接性:对于不锈钢复合板的焊接,既要满足基层的焊接结构强度要求,又要使较薄的复层满足腐蚀性能要求,既要避免基层铬、镍等合金增多影响焊缝强度,又要避免复层增碳降低其耐腐蚀性能,因此焊接工作比单层钢板复杂很多,工艺上要求采用不锈钢复合钢板特殊的焊接工艺ã€?/p> <p>3、不锈钢复合钢板的焊接工艺:不锈钢复合钢板的焊接工艺一般来说是先焊接基层,焊接焊接过渡层,最后焊接复层(不锈钢),由于复合钢板焊接分三部分,所以也要采用三种不同的焊条来工件同一焊条焊缝,以保证焊缝质量、例如、基层与基层焊接采用与基层材质相应的碳钢焊条,复层与复层的焊接采用与复层材质相应的焊条,基层与复合交界处-过渡的焊接可以采用铬、镍含量高的é“?5é•?3(奥302、奥307),é“?5é•?3é’?(奥312)型焊条,以减少碳钢合金组成的稀释作用和补充焊接过程中合金成分的烧损,焊条选用上注意不能用碳钢或低合金钢焊条焊接高合金材料,因此焊接顺序应注意要先焊碳钢或低合金,后焊不锈钢ã€?/p> <p>    在进行不锈复合钢板特定的焊接工艺设计时,应采用小焊电流,直流反极性焊接线,直道多道焊,焊时焊条不宜做横向摆动ã€?/p> <p>4、不锈钢复合钢板的焊接实例:基材选用Q235钢板,复层选用1Cr18Ni9Ti不锈钢ã€?/p> <p>    不锈复合钢板的焊接在基层点焊时,必须用碳钢焊条,当靠近复层时,需适当控制焊接电流,小些为好,以防止复层产生增碳现象,影响复层的耐腐蚀性,要防止碳钢焊条的飞溅落在复层的坡面上,如有溅落要清除干净,否则飞溅物粘附在复层表面上会破坏其表面氧化膜,遇腐蚀性介质就是腐蚀点。为防止后续使用过程的腐蚀发生,焊前应分别在坡口两ä¾?50mm范围内涂上石灰浆以防止飞溅物的粘附ã€?/p> <p> </p> <p> </p> <p>                        --沈阳威克创新焊接设备有限公司</p> <p> </p> <p> </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> </body> </html>