主要介绍了手工下向焊工艺及操作技术在焊工培训过程和天然气输气管道施工现场的应用。
This article mainly introduces the application of vertical down welds technique and operation technology in the course of welders' training and in the site of natural gas pipeline.
介绍了靖边至西安输气管道的概况，对管道的主要环境因素和工艺站场环境因素进行了分析。
The article covers the general situation of Jingbian-Xi'an Natural Gas Transmission Pipeline and analysis is conducted on pipelines's major environment factors and that o! process plants.
该课题对于忠武输气管线拟采用的X60抗硫化物应力腐蚀管线钢进行了环焊缝焊接工艺研究。
In this paper, focused on researching on welding process of anti-SSCC X60 pipeline steel for ZHONG-WU pipeline.
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