Thread Content
Chemical equipment has developed greatly in the past ten years. Praise for China's prosperity and strength in the prosperous age. It will be more lively and exciting with everyone's participation. You are welcome to participate in the forum for more exchanges and discussions. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * On March 3, 2023, Sinopec Petroleum Engineering Construction Company Jianghan Oil Construction used tungsten argon arc automatic external root welding technology to complete the running-in of the X80 steel grade pipeline with a wall thickness of 18.4 mm and a diameter of 1219 mm in the Qinling Mountains of the ninth bid section of the middle section of the Third West-East Gas Pipeline (Zhongwei-Zaoyang). The pass rate of one-time welding was 99%. This marks a new breakthrough for this technology in the construction of large-diameter, high-steel-grade pipelines in mountainous areas. At present, in the construction of large-diameter, high-grade long-distance pipelines in mountainous areas in my country, the combined automatic welding technology of manual argon arc root welding and automatic welding and filler cover is commonly used in areas with steep slopes, such as steep hills and steep slopes. However, this method takes a long time to weld and has a low qualification rate. In order to make up for this "short board" in the application of fully automatic welding technology, Jianghan Oil Construction finally developed tungsten argon arc automatic external root welding technology after more than 2 years of technical research and repeated verification. The technology successfully passed * * It was reviewed by an expert group organized by the pipeline network and tested on the X70 steel grade Xinjiang coal-to-gas Guangxi branch line project, which was twice as efficient as combined automatic welding. Subsequently, the company researched and completed the welding process related to X80 steel grade pipelines, and successfully tested it on the East Main Line Project of Shandong Pipeline Network. This technology gets * * The pipeline network attaches great importance to and affirms it, and was approved to be officially used in the middle section of the Third West-East Gas Pipeline (Zhongwei-Zaoyang) line project after it passed hundreds of runs. In order to ensure the successful application of this technology in areas with large slopes in mountainous areas, the company organized a team of experts to follow the crew throughout the operation, while further optimizing the construction process to maximize work efficiency and make on-site quality and safety management more scientific and controllable. On March 3, through careful organization and skillful operation, Jianghan Oil Construction set a record of welding 12 passes in a single day. The relevant person in charge of Jianghan Oilfield Construction said that the high-quality and efficient completion of the running-in at Baidaokou in the mountainous area marks the increasing maturity of the tungsten argon arc automatic external root welding technology developed by the company, which has further improved the welding technology in mountainous areas and has positive significance for improving the level of fully automatic welding of domestic large-diameter high-steel long-distance pipelines.