双辊连铸制备6.5 ％Si硅钢薄带的组织与性能

• 作 者: 张凤泉 刘振宇 骆忠汉 汪汝武 吴章汉
• 机 构: 国家硅钢工程技术研究中心,东北大学轧制技术及连轧自动化国家重点实验室,冶金工业过程系统科学湖北省重点实验室,
• 出 处: 武钢技术
• 发表日期: 2015年03期

分别利用双辊连铸—温轧—退火和双辊连铸—热轧—温轧—退火工艺制备了厚度为0.50mm的6.5%硅钢薄带。利用光学显微镜、X射线衍射仪和磁性测量研究了热轧、温轧和退火工艺对组织、织构和磁性的影响。结果表明:在温轧之前进行一定程度的热轧,可减小温轧变形量,退火后可获得更加满意的{001}再结晶织构和更加均匀的再结晶组织,故与直接温轧工艺相比,温轧之前进行一定程度的热轧可使磁感提高,而铁损降低。 The 6.5% silicon steel strip with a thickness of 0.50 mm was prepared by twin-roll continuous casting-warm rolling-annealing and twin-roll continuous casting-hot rolling-warm rolling-annealing respectively. The effects of hot-rolling, warm-rolling and annealing processes on microstructure, textures and magnetic properties were investigated by optical microscope, X-ray diffraction and magnetic measurements. The results show that a certain degree of hot rolling before hot rolling can reduce the amount of hot rolling deformation and obtain a more satisfactory {001} recrystallization texture and a more uniform recrystallized texture after annealing, Compared with the warm rolling process, some degree of hot rolling before warm rolling can improve the magnetic induction and reduce the iron loss.