上向与下向复合焊接工艺在大直径厚壁管道建设中的应用
Composite Welding Process of Down-Up-Welding and Up-Down-Welding and Its Application on Pipeline Construction with Large Diameter and Thick Wall of the Pipe
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- DOI:
- 作者:
- 薛枫, 石志华, 宁孝文
Xue Feng, Shi Zhihua, Ning Xiaowen
- 作者单位:
- 石油管道第二工程公司, 江苏省徐州市 221008
Xuzhou, Jiangsu
- 关键词:
- 厚壁管;管道焊接;工艺;应用
Heavy wall pipe;Pipeline welding;Technology;Application
- 摘要:
- 从焊接特点、焊村性能、焊接过程、焊接工艺参数和焊接操作要领等方面报道了上向与下向复合焊接工艺在直径1400mm、壁厚14mm的管道工程中的应用情况。实际应用表明，施工中采用这种复合焊接工艺，可以降低焊工劳动强度、提高工效、焊口一次合格率达90%以上，具有可观的效益。
This article rep0rts composite welding process of down-up-welding and up-down-welding and itsapplication on pipeline construction with 14O0 mm diameter and 14 mm thick wall in aspects of weld-ing feature, performance, procedure, process index and operati0n. The practice results that the pro-cess can reduce labor strength and raise efficiency in 90% qualification 0f welding seam at 0ne time.1998,3(3): 23-25,3 收稿日期：1997-10-21