Development of new technologies for multi-function and high-precision heat treatment of plate and strip
LIU Hong-yan1,2, CHEN Zi-gang1, DENG Xiang-tao2, WANG Zhao-dong2
1. Hansteel Company, HBIS Group, Handan 056015, Hebei, China; 2. State Key Laboratory of Rolling Technology and Continuous Rolling Automation, Northeast University, Shenyang 110819, Liaoning, China
Abstract：High quality plate and strip products are the important foundation of national economic construction. Multi-function and high-precision heat treatment is the core key to produce high performance and high added value plate and strip. The domestic multi-function and high-precision heat treatment production line is mainly positioned in development and production of 1 000-2 000 MPa gigabit ultra-high strength steel. The quenching process adopts temperature-controlled quenching, constrained quenching, visualization and interactive sequence control and plate area coordinate control technologies with precise and controllable cooling path. The temperature accuracy is ±4.5 ℃ and the time synchronization accuracy is ±0.01 s, reaching the international leading level of similar equipment. The tempering process adopts the forced convection circulation mixed heating technology of "burner open fire + hot air circulation" to strengthen the heat transfer efficiency and accuracy, achieving the tempering temperature accuracy of ±3 ℃ for large temperature span, reducing energy consumption emissions by 15%, and achieving green production and green manufacturing. The research and development of new multi-function and high-precision heat treatment technology is reviewed, which can provide reference for technology innovation, green transformation and product iterative upgrading of China′s high-end deep processing steel materials.
刘红艳, 陈子刚, 邓想涛, 王昭东. 板带材多功能高精度热处理新技术研发进展[J]. 中国冶金, 2023, 33(3): 45-53.
LIU Hong-yan, CHEN Zi-gang, DENG Xiang-tao, WANG Zhao-dong. Development of new technologies for multi-function and high-precision heat treatment of plate and strip[J]. China Metallurgy, 2023, 33(3): 45-53.
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2023, Vol. 33 
