【Major Industrial Equipment in the Chemical Industry】China’s first X80-grade Ф2050×16.5mm spiral-welded submerged-arc welded steel pipe, 2017

Thread Content

Comply with the Work Safety Law! Take on the role of the primary responsible person! ---------------------------------------------- The past decade has been a period of rapid development in China’s chemical industry, marked by the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift development of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. We invite everyone to share, discuss, and exchange ideas – let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ On November 29, 2017, with a graceful arc traced out by the transport vehicle, an ultra-large-diameter steel pipe was carefully delivered onto the conveyor belt. The successful trial production of X80 grade, Ф2050×16.5mm spiral submerged arc welded steel pipes marks a new breakthrough by Bohai Equipment Huayou Steel Pipe Company in the technology for producing steel pipes of high grades and large diameters. This is the largest-diameter spiral welded pipe ever produced by Huayou Steel Pipe Company to date. Verification through sampling has shown that all performance parameters of the trial-produced steel pipes meet the relevant technical standards for spiral steel pipes as well as the company’s internal control standards. The trial production of spiral submerged arc welded steel pipes of X80 grade and Ф2050×16.5mm size was successful, expanding the company’s product range from Ф219mm to various sizes in the Ф2050mm range. This has opened up new market opportunities for the company, enabled it to better meet the diverse needs of the market for pipes, and enhanced its competitiveness. In mid-November, Huayou Steel Pipe Company began the trial production of \"X80 grade, Ф2050mm ultra-large diameter steel pipes\". To ensure the smooth progress of the trial production, the company adopted the guiding principle of \"progressing steadily, ensuring technical feasibility, guaranteeing safety, and striving for success on the first attempt,\" and assembled the best technicians, operators, and maintenance staff to work diligently on this task. Throughout the entire prototyping process, the company strengthened unified planning and coordination, carefully managing organizational tasks. It convened technical personnel as well as experts in molding and welding skills on multiple occasions to discuss the factors and issues that affected and hindered the progress of prototyping, with the aim of finding the best solutions. In the face of potential issues, everyone’s enthusiasm was fully harnessed, with each member of the task force acting as a key player in the prototype development. By working together and pooling their efforts, it was ensured that every detail was handled smoothly. Local modifications were made to the former, aligner, external welding system, flux circulation system, etc., through drawing review, on-site surveying and measurement, and theoretical layout, in order to enhance the capacity of the unit. On November 28, with the completion of the final renovation project, feeding, guiding, and shape adjustment were carried out; on the 29th, the first steel pipe made of X80 grade with dimensions of Ф2050×16.5mm was successfully produced. From receiving the prototype production task to the successful production of the steel pipe, it took less than 20 days, which fully demonstrates Huagang’s speed.