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Key point: Recently, China’s First Heavy Industries Group Co., Ltd. successfully forged the largest diameter Ø 8.8 meter EO reactor ultra large tube plate forging in China for the first time using self-developed external forging technology. Ultra large tube plate forging for EO reactor
Recently, China National Heavy Duty Truck Group Corporation (CNHTC) successfully forged the largest domestically produced ultra large tube plate forging for an EO reactor with a diameter of Ø 8.8 meters using its independently developed external forging technology for the first time. The forging of the super large tube plate in the EO reactor is in the form of a circular iron cake, but this “iron cake” cannot be thrown by manpower because its weight is 210 tons and it stands at the height of a three story building.
In July of this year, the Tianjin R&D Center of Yizhong Group, relying on the Shenghong Refining and Chemical EO Reactor Project, undertook the research and development of the super large tube plate for the EO reactor. R&D personnel and on-site staff liberate their minds, explore and innovate, break through traditional thinking, and independently design a complete set of external forging aids and process control technology solutions.
In forging, the first application of external forging aids and processes in China has been achieved. Integrated forging has broken through the limitations of hydraulic press column spacing on the manufacturing of ultra large forgings, solved the “bottleneck” problem in the manufacturing limit of ultra large forging equipment, and overcome difficulties such as lifting ultra large diameter tube sheets, hot state flipping of large diameter billets by 180 °, design and manufacturing of 9000mm heating furnaces, and precise movement of walking tables during forging processes.
The successful forging of the super large tube plate in the EO reactor of Shenghong Refining and Chemical Co., Ltd. has fulfilled the long cherished wish of many technical personnel for in vitro forging, and is also the first large-scale forging in China to attempt in vitro forging. The smooth implementation of this project not only reduces manufacturing costs, but also significantly enhances China’s market competitiveness in the field of large forging manufacturing due to its integrated manufacturing advantages. (Source: China First Heavy Industry)