Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline

DENG Li; LIU Yongzhen; LI Zixuan; SUN Youhui; GUO Lianjing; QIN Zhenwei

DENG Li, LIU Yongzhen, LI Zixuan, SUN Youhui, GUO Lianjing, QIN Zhenwei. Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline[J]. MW Metal Forming, 2024, (5): 58-60,66.

Citation:

DENG Li, LIU Yongzhen, LI Zixuan, SUN Youhui, GUO Lianjing, QIN Zhenwei. Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline[J]. MW Metal Forming, 2024, (5): 58-60,66.

Citation:

DENG Li, LIU Yongzhen, LI Zixuan, SUN Youhui, GUO Lianjing, QIN Zhenwei. Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline[J]. MW Metal Forming, 2024, (5): 58-60,66.

Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline

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According to the STT root and FCAW-G filling＆ capping welding, an automatic welding technology has been developed. The mechanical test results meet the DNV OS F101:2017《Submarine Pipeline System》requirements. Which can be guided as the welding of X65 carbon steel of casing pipe for pipe-in-pipe pipeline laying.

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Research on auto welding process for X65 casing pipe of pipe-in-pipe submarine pipeline

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