关键词: 取向硅钢, 常化, 冷轧板, 初次再结晶退火, 二次再结晶退火, 组织, 织构, 磁性解

Abstract: The structure, texture and magnetic performance of annealed cold-rolled sheet of oriented silicon steel (/%: 0. 046G, 3. 07Si, 0. 09Mn, 0. 029P, 0. 004S, 0. 005Al, 0. 001 Ti, 0.001 40, 0.009 6N) from 2. 66 mm hot-rolled plate normalizing at 1 100 ℃ for 2 min, air cooling for 10 s to 960 ℃ for 3 min, air cooling, then first cold-rolling, process annealing and second cold-rolling to 0.3 mm sheet, and through primary recrystallizing annealing at 820 TI for 5 min, air cooling and secondary recrystallizing annealing at 1 050 ℃, air cooling have been, tested and studied. As contrasted to the structure and properties of primary recrystallizing annealed samples and secondary recrystallizing annealed samples without via hot-rolled plate normalizing process, the effect of normalizing process on annealing process is obtained. Results show that the normalizing treatment of hot-rolled plate may decrease the primary recrystallizing grain size of the primary annealed cold-rolled sheet, increases the percentage of Σ₉ grain boundaries and high-angle grain boundaries, improves the content of Goss orientation grains, and can coarsen the secondary recrystallizing grains, enhance the magnetic induction and decrease the iron loss.