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width="575" height="326" title="拉萨拉萨钢结构焊接中6大质量缺é™ïLš„成因分析及处理办æ³? align="" /> </p> <h2> 孔穴 </h2> <p> 孔穴åQšé€šå¸¸åˆ†äؓ气孔和孔坑羃孔两¿Uã€‚äñ”生气孔的主要原因是焊条药皮损坏严重、焊条和焊剂未烘烤、母材有æ²ÒŽ±¡æˆ–锈和氧化物、焊接电‹¹è¿‡ž®ã€å¼§é•¿è¿‡é•¿ï¼Œç„ŠæŽ¥é€Ÿåº¦å¤ªå¿«½{‰ï¼Œå…¶å¤„理方法是铲去气孔处的焊缝金属åQŒç„¶åŽè¡¥ç„Šã€‚äñ”生弧坑羃孔的主要原因是焊接电‹¹å¤ªå¤§ä¸”焊接速度太快、熄弧太快,未反复向熄弧处补充填充金属等åQŒå…¶å¤„理æ–ÒŽ³•æ˜¯åœ¨å¼§å‘处补焊ã€?</p> <p style="text-align:center;"> <img style="max-width:100%;" src="/uploads/image/20200702/20200702225740_9010.jpg" alt="" width="575" height="336" title="" align="" /> </p> <h2> å›ÞZ½“å¤ÒŽ‚ </h2> <p> å›ÞZ½“å¤ÒŽ‚åQšæœ‰å¤ÒŽ¸£å’Œå¤¹é’¨ä¸¤¿Uç¼ºé™—÷€‚äñ”生夹渣的主要原因是焊接材料质量不好、焊接电‹¹å¤ªž®ã€ç„ŠæŽ¥é€Ÿåº¦å¤ªå¿«ã€ç†”渣密度太大、阻¼„ç†”渣上‹¹®ã€å¤šå±‚焊时熔渣未清除òq²å‡€½{‰ï¼Œå…¶å¤„理方法是铲除å¤ÒŽ¸£å¤„的焊缝金属åQŒç„¶åŽç„Šè¡¥ã€‚äñ”生夹钨的主要原因是氩弧焊旉™’¨æžä¸Žç†”池金属接触åQŒå…¶å¤„理æ–ÒŽ³•æ˜¯æŒ–åŽÕd¤¹é’¨å¤„¾~ºé™·é‡‘属åQŒé‡æ–°ç„Šè¡¥ã€?</p> <p style="text-align:center;"> <img style="max-width:100%;" src="/uploads/image/20200702/20200702225800_4792.jpg" alt="拉萨拉萨钢结构焊接中6大质量缺é™ïLš„成因分析及处理办æ³? width="575" height="386" title="拉萨拉萨钢结构焊接中6大质量缺é™ïLš„成因分析及处理办æ³? align="" /> </p> <h2> 未熔合、未焊é€?</h2> <p> 未熔合、未焊透:产生的主要原因是焊接甉|µå¤ªå°ã€ç„ŠæŽ¥é€Ÿåº¦å¤ªå¿«ã€å¡å£è§’度间隙太ž®ã€æ“ä½œæŠ€æœ¯ä¸ä½³ç­‰ã€‚对于未熔合的处理方法是铲除未熔合处的焊¾~é‡‘属后焊补。对于未焊透的处理æ–ÒŽ³•æ˜¯å¯¹å¼€æ•žæ€§å¥½çš„结构的单面未焊透,可在焊缝背面直接补焊。对于不能直接焊补的重要焊äšgåQŒåº”铲去未焊透的焊缝金属åQŒé‡æ–°ç„ŠæŽ¥ã€?</p> <p style="text-align:center;"> <img style="max-width:100%;" src="/uploads/image/20200702/20200702225820_7603.jpg" alt="" width="575" height="336" title="" align="" /> </p> <h2> 形状¾~ºé™· </h2> <p> 形状¾~ºé™·åQšåŒ…括咬辏V€ç„Šç˜¤ã€ä¸‹å¡Œã€æ ¹éƒ¨æ”¶¾~©ã€é”™è¾V€è§’度偏差、焊¾~è¶…高、表面不规则½{‰ã€?</p> <p> 产生咬边的主要原因是焊接工艺参数选择不当åQŒå¦‚甉|µ˜q‡å¤§ã€ç”µå¼§è¿‡é•¿ç­‰;操作技术不正确åQŒå¦‚焊枪角度不对åQŒè¿æ¡ä¸å½“ç­‰;焊条药皮端部的电弧偏å?焊接零äšg的位¾|®å®‰æ”¾ä¸å½“等。其处理æ–ÒŽ³•æ˜¯è½»å¾®çš„、浅的咬边可用机械方法修锉,使其òqÏx»‘˜q‡æ¸¡;严重的、深的咬边应˜q›è¡Œç„Šè¡¥ã€?</p> <p> 产生焊瘤的主要原因是焊接工艺参数选择不正¼‹®ã€æ“ä½œæŠ€æœ¯ä¸ä½Ÿë€ç„Šä»¶ä½¾|®å®‰æ”¾ä¸å½“等。其处理æ–ÒŽ³•æ˜¯ç”¨é“ŒÓ€é”‰ã€ç£¨½{‰æ‰‹å·¥æˆ–机械æ–ÒŽ³•é™¤åŽ»å¤šä½™çš„å †¿U¯é‡‘属ã€?</p> <p style="text-align:center;"> <img style="max-width:100%;" src="/uploads/image/20200702/20200702225843_6354.jpg" alt="" width="575" height="338" title="" align="" /> </p> <h2> 其他¾~ºé™· </h2> <p> 主要有电弧擦伤、飞溅、表面撕裂等ã€?</p></p> </div> <div class="clear"></div> <div class="tag">相关标签åQ?a href='/key.aspx?k=%e6%8b%89%e8%90%a8%e9%92%a2%e7%bb%93%e6%9e%84'>拉萨钢结æž?/a>,<a href='/key.aspx?k=%e9%92%a2%e7%bb%93%e6%9e%84'>钢结æž?/a>,</div> <p><div>上一æ?<a href="102.html">拉萨钢结构厂房抗风柱如何计算才能准确?</a></div> <div>下一æ?<a href="100.html">2020òqß_¼Œæƒ›_œ¨æ‹‰è¨å®‰è£…彩钢房一定要了解其的ä»äh ¼ã€?/a></div> </p> <div class="related_list"> <h4>相关新闻</h4> <ul class="related_news"> <li><a rel="nofollow" href="/news/106.html">拉萨钢结构在安裝的情况下必须留意的关键点</a><span>2020-07-12</span></li> <li><a rel="nofollow" href="/news/102.html">拉萨钢结构厂房抗风柱如何计算才能准确?</a><span>2020-07-03</span></li> <li><a rel="nofollow" href="/news/101.html">【行业知识】拉萨拉萨钢¾l“构焊接ä¸?大质量缺é™ïLš„成因分析及处理办æ³?/a><span>2020-07-02</span></li> <li><a rel="nofollow" href="/news/97.html">日常生活在拉萨市的äh们在应用钢结构厂房时要留意下列三炏V€?/a><span>2020-06-26</span></li> </ul> </div> <div class="clear"></div> <div class="related_list"> <h4>相关产品</h4> <ul class="related_pro"> <li> <div class="related_img"><a rel="nofollow" href="/supply/67.html"><img src="http://cmsimgshow.zhuchao.cc/35445/202005141031214103544576666.jpg?path=www.022072.tw/uploads/cp/202005141031214103544576666.jpg" alt="拉萨防火钢结构厂房连接方æ³? 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