Effect of Annealing of 00Cr17Ti HotRolled Band on Ridging of ColdRolled and Annealed Sheet
LIU Haitao1,LIU Zhenyu1,WANG Guodong1，JIANG Laizhu2
1.The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China;2.Baosteel Research Institute, Shanghai 201900, China
Abstract：Comparative experiments of 00Cr17Ti coldrolled sheets with or without hot band annealing were carried out. The effect of annealing of hot band on ridging of coldrolled and annealed sheet was investigated by microstructure and texture analysis. The results show that the coldrolled and annealed sheet with annealing of hot band exhibited slighter ridging than that without annealing, and the average roughness and maximum roughness were only 1.27 μm and 12.06 μm, respectively. The difference in ridging characteristics between these two sheets mainly derived from the difference in microstructure and microtexture. The coldrolled and annealed sheet from annealed hot band had more homogenous microstructure in normal direction (ND) and lower texture gradient in transverse direction (TD) in comparison with that without annealing of hot band. Moreover, the grain colonies of the coldrolled and annealed sheet from annealed hot band were shorter, thinner and more scattered. All that reduced ridging of the finished sheet. Thus annealing of hotrolled band is essential to improve the surface quality of finished sheet.
刘海涛;刘振宇;王国栋;江来珠. 00Cr17Ti热带退火对冷轧薄板表面皱折的影响[J]. 钢铁, 2009, 44(1): 55-0.
LIU Haitao;LIU Zhenyu;WANG Guodong;JIANG Laizhu. Effect of Annealing of 00Cr17Ti HotRolled Band on Ridging of ColdRolled and Annealed Sheet. Iron and Steel, 2009, 44(1): 55-0.
2009, Vol. 44 
