基于铜衬垫根焊 + 药芯气保护焊上向填盖在施工中的质量控制

Quality Control of the Upward Filling and Covering Based on Copper Liner Root Welding + Flux-Cored Gas Shielded Welding during Construction

摘要: 本文聚焦东非原油管道项目中铜衬垫根焊 + 药芯气保护焊上向填盖工艺的施工要点。该项目全长1539公里，焊接质量对工程成败至关重要。从人员、设备、材料、方法、环境五方面分析：人员需具备高素养，严格执行工序管理；设备需定期维护以保障性能稳定；材料把控聚焦保护气体比例(CO₂需20%±1%)、焊丝质量及防潮处理；方法上遵循工艺规程，精准控制熔池与接头处理；环境需应对地形、温湿度等影响。实践表明，通过五维协同管控，可有效避免气孔、未熔合等缺陷，在保证焊接质量的同时提升效率，为项目按时完工奠定基础。

Abstract: This article focuses on the key construction points of the copper liner root welding + fluxes gas shielded welding upward filling and covering process in the East African crude oil pipeline project. The project is 1539 kilometers long, and the quality of welding is crucial to the success or failure of the project. From the five aspects of personnel, equipment, materials, methods and environment: Personnel need to have high quality and strictly implement process management; The equipment needs regular maintenance to ensure stable performance. Material control focuses on the proportion of shielding gas (CO₂ needs to be 20% ± 1%), the quality of welding wire and moisture-proof treatment. In terms of methods, follow the process regulations and precisely control the treatment of the molten pool and joints. The environment needs to cope with the influences of terrain, temperature and humidity, etc. Practice has shown that through five-dimensional collaborative control, defects such as porosity and incomplete fusion can be effectively avoided, ensuring welding quality while enhancing efficiency and laying a foundation for the timely completion of the project.