Plate shape control method for oriented silicon steel hot-rolled steel strip

• Main Authors: GAO LEI, YANG CHENGYU, WANG ZUNCHENG, GUO BAO'AN, ZHANG SHOUFENG, YOU QINGLEI, LI XIANGKE, LIU ZHIWEI, JIANG QIWU, WANG HONGHAI
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2021
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention relates to a plate shape control method for an oriented silicon steel hot-rolled steel strip. The technological process of the oriented silicon steel hot-rolled steel strip comprises a casting blank heating process, a rolling process and a laminar cooling process, wherein in the rolling process, a mode of cross rolling of oriented silicon steel and common steel is adopted; in the rough rolling process, a 1+5 rolling process of rolling for one time in R1 and rolling for five times in R2 is adopted, and rolling process parameters are controlled; and in the finish rolling process, rolling process parameters from F1 to F7 are controlled. According to the plate shape control method, by setting a reasonable cross rolling process and an oriented silicon steel hot rolling process, the rolling stability of the oriented silicon steel is greatly improved, the plate shape of the oriented silicon steel is well controlled, the convexity is controlled within 30-50 microns, the wedge shape is controlled within