国产天然气管道內焊机和双焊炬外焊机的应用  

Combined Application of Homemade Internal Welding Machine and External Welding Machine with Dual Welding Torches in Natural Gas Pipeline Construction

作　　者：周晓辉 

机构地区：[1]中国石油天然气管道局河北华北石油工程建设有限公司,河北任丘062552

出　　处：《石油工程建设》2010年第S1期254-258,311-312,共7页Petroleum Engineering Construction

摘　　要：对国产PIW48管道内环缝自动焊机根焊和PAW3000管道自动双焊炬焊机热焊、填充及盖面的焊接技术进行了研究,并对其焊接缺陷产生的原因做了较详细的分析,提出了改进措施,并得到了验证。对西气东输二线管道焊接中的大量施工经验进行了总结。The research on welding technique with backing by PIW48 pipe automatic internal girth welding machine and hot welding, filling and capping by pipe automatic dual torches is conducted. The causes ofwelding defects are analyzed in certain detail, and the improving measures are offered and confirmed. At last, a plenty of construction experience from Second West to East Gas Pipeline welding practice are summarized.

关 键 词：大口径管道 自动焊 焊接缺陷 改进措施 全位置自动焊机 

分 类 号：TE973.3[石油与天然气工程—石油机械设备]