冷轧压下率和退火时间对Ti-IF深冲钢性能的影响  

Influences of Cold Rolling Reduction Ratio and Annealing Time on Performances of Ti-IF Deep Drawing Steel

作　　者：薛越[1] 尚秀廷[1] 高军[1] 韩玉龙[2] 樊立峰[3] Xue Yue;Shang Xiu-ting;Gao Jun;Han Yu-long;Fan Li-feng(CSP Plant of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Manufacturing Dept.of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;School of Materials Science and Engineering,Inner Mongolia University of Technology,Hohhot 010000,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司薄板坯连铸连轧厂,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司制造部,内蒙古包头014010 [3]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010000

出　　处：《包钢科技》2022年第1期65-71,共7页Science & Technology of Baotou Steel

摘　　要：针对冷轧罩式退火厚规格深冲钢冲压性能不稳定现象,借助光学显微镜、X射线衍射仪、拉力试验机等设备,研究了冷轧压下率和退火时间对Ti-IF深冲钢冲压性能的影响。结果表明,提高冷轧压下率、r值和抗拉强度呈增大趋势,n值变化不明显;延长退火时间,r值呈增大趋势,抗拉强度呈减小趋势,n值变化不明显。根据试验结果进行了工艺优化,{111}织构密度增强,产品冲压性能改善明显。The influences of cold rolling reduction ratio and annealing time on the stamping performance of Ti-IF deep drawing steel are studied by means of such equipment as optical microscope,X-ray diffractometer and tensile tester aiming at the phenomenon that the stamping performance of cold rolled cover annealing thick deep drawing steel is unstable.The results showed that the r value and tensile strength tended to increase and change of n value was not obvious with the increase of cold rolled reduction ratio;r value increased,tensile strength decreased and change of n value was not obvious with the extension of annealing time.The process is optimized according to the test results so that density of{111}texture is enhanced and stamping performance of product is obviously improved.

关 键 词：Ti-IF深冲钢St14 冷轧压下率 退火时间 r值 织构 

分 类 号：TG142.13[一般工业技术—材料科学与工程]