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scrolling="no"></iframe></span> </div> </div> <div class="pics"> <div class="pagination"></div> </div> <div class="contents"> <p>  对于<a href="http://www.ideactivaexterior.com">¼„³é’¢å¼¯å¤´</a>而言åQŒå…¶¼„³é’¢å¼¯å¤´æœºç»„的运行是否正常化åQŒç›´æŽ¥å¯¹äºŽèžºæ—‹é’¢½Ž¡çš„生äñ”èµïL€å…³é”®æ€§çš„影响作用。而螺旋钢½Ž¡æœº¾l„çš„˜qè¡ŒåQŒå´å—到螺旋钢管焊接工艺的限åˆÓž¼Œç„ŠæŽ¥å·¥è‰ºè¾ƒå¥½åˆ™èžºæ—‹é’¢½Ž¡æ•´ä½“运行良好,反之åQŒåˆ™ä¼šåª„响到螺旋钢管的有序化前行。基于此åQŒåœ¨æœ¬æ–‡ä¸­ï¼Œé’ˆå¯¹èžºæ—‹é’¢ç®¡çš„金属焊接问题进行深入分析,针对金属焊接工艺中存在问题,提出了相应的解决对策和方法ã€?/p> <p>  ¼„³é’¢å¼¯å¤´å·¥è‰ºçš„缺陷äñ”生原å›?/p> <p>  (1)金属焊接的气孔缺陗÷€‚在实际螺旋钢管˜qè¡Œä¸­ï¼Œåœ¨å¯¹é‡‘属˜q›è¡Œç„ŠæŽ¥ä¸­ï¼Œ¾~ºé™·æœ€ä¸ºé¢‘发的ž®±æ˜¯æ°”孔斚w¢çš„缺陗÷€‚如果焊接的部位存在水分或者锈˜q¹ï¼Œé‚£ä¹ˆåQŒè¯¥éƒ¨ä½å‘生严重气孔¾~ºé™·çš„几率就会骤然增大。尤其是在焊接的坡口处,˜q™ä¸ªéƒ¨ä½æ˜¯æœ€ä¸ºå®¹æ˜“发生气孔缺é™ïLš„地方。另外,在进行焊接中åQŒå¦‚果焊剂受潮或者含有杂质,很容易发生气孔缺陗÷€‚发生气孔缺é™ïL„ŠæŽ¥åŽåQŒéœ€è¦ç„ŠæŽ¥çš„地方其可利用的面¿U¯ï¼Œè‡ªç„¶ž®×ƒ¼š¾~©å°åQŒåŒæ—Óž¼Œæ°”å­”¾~ºé™·ç„ŠæŽ¥çš„存在,对于金属构äšg的强度而言åQŒä¹Ÿä¼šé€ æˆè¾ƒå¤§çš„破坏,减少金属的致密性。因此,在进行金属焊接中åQŒå¯¹äºŽæ°”孔缺é™ïL„ŠæŽ¥çš„‹‚€æŸ¥æ˜¯éžå¸¸é‡è¦çš„一个环节ã€?/p> <p>  (2)金属焊接的夹渣缺陗÷€‚在焊接的过½E‹ä¸­åQŒäñ”生一定数量的熔渣是肯定的åQŒè¿™äº›ç„ŠæŽ¥ä¸­å‡ºçŽ°çš„熔渣,很容易在焊缝中残留,¾l§è€Œå¯¼è‡´äº†å¤ÒŽ¸£¾~ºé™·çš„出现。熔渣的产生和夹渣缺陷äñ”生的原因˜q™ä¸¤è€…之间有很大密切的关¾p…R€‚在螺旋钢管焊接中,¼„±æ€§ç„Šæ¡åœ¨èžºæ—‹é’¢ç®¡ç„ŠæŽ¥˜q‡ç¨‹ä¸­ï¼Œå—到˜q‡é•¿çš„电弧的影响åQŒå¦å¤–,˜q˜æœ‰ä¸å‡†¼‹®çš„极性和焊条错位½{‰åŽŸå› çš„òq²æ‰°åQŒé€šè¿‡ä¸€å®šçš„焊接¾~éš™æ—Óž¼Œå„种的熔渣也ž®±é¡ºåŠ¿è¿›å…¥åˆ°äº†ç„Š¾~é‡Œé¢ï¼Œæœ€¾lˆå¯¼è‡´å¤¹æ¸£ç¼ºé™ïLš„产生ã€?/p> <p>  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(5)裂纹¾~ºé™·ã€‚裂¾U¹ç¼ºé™äh˜¯èžºæ—‹é’¢ç®¡ç„ŠæŽ¥ä¸­ï¼Œæœ€ä¸¥é‡çš„缺陷之一åQŒèžºæ—‹é’¢½Ž¡ç›¸å…³äh员在˜q›è¡Œé‡‘属焊接中,要对该种¾~ºé™·˜q›è¡Œè§„避。在各种的螺旋钢½Ž¡ç¼ºé™ïL ”½I¶ä¸­åQŒè£‚¾U¹ç¼ºé™·é¦–当其å†ÔŒ¼Œæˆäؓ了最关键性的研究重点。在螺旋钢管日常工作中,需要运用不同的æ–ÒŽ³•åQŒå¯¹äºŽç„ŠæŽ¥çš„质量¾l™äºˆ‹‚€éªŒï¼Œé’ˆå¯¹å­˜åœ¨çš„裂¾U¹ç¼ºé™øP¼Œ¾l™äºˆåŠæ—¶çš„补救ã€?/p> </div> </div> <br /> <div class="other clearfix"> <ul class="left"> <p>上一æ? <a href="/jswz/3500.html">法兰外表¾_—糙度对密封效果的媄</a> </p> <p> 下一æ? <a href="/jswz/3575.html">不锈钢弯头表面处理工艺有哪些</a></p> </ul> </div> </div> </div> </div> </div> </div> <!--底部--> <div class="foot wow fadeInUp" aos="fade-up" aos-easing="ease" aos-duration="700"> <div class="foot-top w1200"> <div class="footl"> <h3><span>Navigation</span>底部å¯ÆDˆª</h3> <li><span>关于我们</span> <p> <a href="/honor/">荣誉证书</a> <a href="/shfw/">售后服务</a> <a href="/scsb/">工程案例</a> <a href="/Contact/">联系我们</a> <a href="/about/">公司介绍</a> </p> </li> <li><span>产品中心</span> <p> <a href="/falan/index.html">弯头½Ž¡äšg</a> <a 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