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《Iron and Steel》 2005-05
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Study on Production of Q345 Plate by Controlled Rolling and Cooling

ZHU Fu-xian1, LI Yan-mei1, LIU Yan-chun1, ZHANG Su-yuan2, YI Min2, LIU Jing-zhi3 (1. The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China; 2. Shougang Research Institute of Technology, Beijing 100041, China; 3. Shougang Plate Plant, Beijing 100041, China)  
By simulation and rolling experiments in lab, the static recrystallization, strain accumulating effect and grain refining mechanism of Q345 steel were studied. And the main factors which influence the structure and properties of plate steel were analyzed. The TMCP of Q345 plate was established for 3500 mm rolling mill at Shougang plate plant. The practice showed that the average grain size of the plate produced by this process can reach ASTM No.10-12 grade, and the grade of band structure can decreased to below 1.5.
【Fund】: 国家重大科技攻关计划资助项目(ZZ0113A0101)
【CateGory Index】: TG335.5
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