[Chemical Equipment Powerful Equipment] 381-2018 X80 steel grade 33 mm longitudinal submerged arc welded steel pipe

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This post was last edited by Yuyu in the Desert at 2022-6-23 08:50. Comply with the Safety Production Law! Be the first responsible person! ----------------------------------------------- The past ten years have been an era of great development for China's chemical industry. The emergence of many new processes, new products, and new equipment has also led to a great development in my country's chemical equipment, which has also promoted the rapid development of the petrochemical industry. Here we have collected and sorted out some of the achievements and breakthroughs made by my country's equipment companies in the large-scale and localization of equipment. Welcome everyone to share, discuss, and exchange, cheer for Made in China, and cheer for chemical equipment! ------------------------------------------------------ In 2018, the Petrochemical Machinery Company successfully produced a batch of straight seam submerged arc welded steel pipes with steel grade X80, pipe diameter 1219 mm, and wall thickness 33 mm for the E-Ancang gas pipeline project, setting records for both steel grade and wall thickness. This marks that the company has the mass production capability of X80 steel grade ultra-thick wall steel pipes. As the energy artery in North my country, the E-Ancang gas pipeline project needs to cross geologically complex geographical areas such as plain water networks and densely populated areas many times during construction. The safety and environmental protection requirements for pipeline operation are extremely high. High-grade, large-diameter, thick-walled steel pipes have become the first choice of owners because of their good performance. In order to improve manufacturing capabilities, the Petrochemical Machinery Company established an X80 ultra-thick-walled steel pipe trial production team to carry out technical demonstration, program planning and pilot testing, and officially entered the mass production stage at the end of November 2018. Faced with the problem of exceeding the design and processing capacity of the pipe making unit and the lack of production experience, the company carefully organized the collection of relevant information on forging and forming, repeatedly set and verified the process parameters of the pressing molds for forming, checked the equipment capabilities, and adjusted and optimized the spacing of the pressing molds. Finally, the problem of excessive yield strength of the steel plates was solved, ensuring the successful completion of the production tasks of this batch of steel pipes.