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xiang xia li han zai da kou jing chang shu guan dao gong cheng zhong de ying yong
Author(s): 
Pages: 79-80
Year: Issue:  1
Journal: WELDING TECHNOLOGY

Keyword:  向下立焊长输管道根焊操作;
Abstract: 向下立焊技术在长输管道施工中应用极为广泛,具有焊接速度快、生产率高、适合流水线作业、焊缝成形美观、内在质量好、无损检测合格率高的优点,尤其是单面焊背面成形平缓、均匀,与普通焊条电弧焊相比,具有明显的优势.介绍了管道向下立焊的焊接工艺及注意事项,并重点叙述了焊接过程中的焊接操作要领.
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