自升式钻井平台桩腿窗户板超窄间隙热丝TIG焊接工艺研究

Study on the Ultra Narrow Gap Welding Processing of Hot Filament TIG for Leg Window Board of Jack-up Drilling Platform

桩腿是自升式海洋石油钻井平台的关键构件,其焊接质量将会直接影响大型海洋钢结构的安全稳定性能。桩腿窗户板的焊接属于高强钢大厚板焊接,焊接难度大、效率低,为此本文提出一种采用超窄间隙热丝TIG焊接方法实现桩腿窗户板的高效、高质量焊接制作。与传统焊接工艺SMAW相比,采用新工艺可提高窗户板焊接质量及生产效率,缩短生产周期,降低劳动强度,改善生产环境,具有广泛的应用前景。

Pile leg is the key component of the Jack-up offshore drilling platform,and its welding quality has a strong impact on the safety and stability of offshore steel structure.Considering the difficulty and low efficiency of the existing welding process of pile leg window piece,a new ultra narrow gap hot wire TIG welding process is developed to improve the quality and efficiency of its welded joint.Compared with conventional weld process SMAW,this new promising welding process can effectively enhance productivity,reduce the labor intensity and improve production environment.