[1]刁凤东,张展,汪兰天.PWT全自动外根焊气孔产生的机理及控制措施[J].焊管,2009,32(11):59-62.[doi:1001－3938（2009）11－0059－04]
　DIAO Feng--dong,ZHANG Zhan,WANG Lan-tian.Gas Pocket Generation Mechanism and Control Measures During PWT Automatic Outside Root Welding[J].,2009,32(11):59-62.[doi:1001－3938（2009）11－0059－04]
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PWT全自动外根焊气孔产生的机理及控制措施
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
32
期数:
2009年第11期
页码:
59-62
栏目:
管道建设
出版日期:
2009-11-28

文章信息/Info

Title:
Gas Pocket Generation Mechanism and Control Measures During PWT Automatic Outside Root Welding
文章编号:
1001－3938（2009）11－0059－04
作者:
刁凤东; 张展; 汪兰天
(中国石油天然气管道局第四工程分公司，河北 廊坊 065000)
Author(s):
DIAO Feng--dong; ZHANG Zhan; WANG Lan-tian
(China Petroleum Pipeline Bureau No.4 Construction Corporation,Langfang 065000,hebei，China)
关键词:
PWT; 根焊; 气孔; 技术措施
Keywords:
PWT; root welding; gas pocket; technical measures
分类号:
TG441.4
DOI:
1001－3938（2009）11－0059－04
文献标志码:
B
摘要:
PWT全自动外根焊技术具有焊接速度快、劳动强度低、焊接质量稳定等优点。由于焊接参数、环境因素、气体纯度等因素的影响，焊缝中容易产生气孔缺欠。介绍了PWT全自动根焊工艺特点，详细分析了气孔产生的机理。针对PWT根焊气孔缺欠，制定了防止气孔产生的技术措施。
Abstract:
PWT automatic outside root welding technology posses some advantages,such as high welding speed,low labor intensity and stable welding quality,etc.Owning to the influence of welding parameter,environment factors and gas purity,etc.,gas pocket is easy to be caused in weld.The process characteristics of PWT automatic root welding was introduced,and gas pocket generation mechanism was analyzed in details.According to gas pocket imperfection of PWT root welding,technical measures of preventing gas pocket from generating were established.

参考文献/References:

［1］周振丰，张文钺.焊接冶金与金属焊接性［M］.北京：机械工业出版社，1987：52-67.
［2］陈伯蠡.焊接工程缺欠［M］.北京：机械工业出版社，2006：22-35.

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备注/Memo

备注/Memo:
作者简介：刁凤东（1979-），男，焊接工程师，主要从事焊接工艺研究和焊工培训工作。
收稿日期：2009－04－22
更新日期/Last Update: