TSCR流程试制取向硅钢的组织演变

通过研究以Cu2S为主抑制剂的取向硅钢在薄板坯连铸连轧全流程中的组织演变,比较了工艺优化前后的差别。结果表明,TSCR流程试制的取向硅钢经传统的后工序工艺处理,初次再结晶平均晶粒尺寸约为15.5μm,晶粒度为8.61,生产出来的成品中的二次晶粒的尺寸与普通取向硅钢的相当,成品的性能为B8=1.865 T,P1.7/50=1.409 W/kg;后工序的工艺优化后,初次再结晶晶粒更加细小和均匀,平均晶粒尺寸约为13.6μm,晶粒度为9.13,二次再结晶发展更加完善,成品的磁性能得到提升,为B8=1.884 T,P1.7/50=1.394 W/kg;证明以Cu2S为主抑制剂采用TSCR流程生产取向硅钢是可行的。

Microstructure Development of Grain Oriented Silicon Steel Produced by Thin Slab Casting and Rolling Process

Microstructure development of grain oriented silicon steel with main inhibitor Cu2S was studied in thin slab casting and rolling total process, conventional and optimized technological process were compared. The results showed that through optimized technological the microstructure form cast iron to finished product of grain oriented silicon steel produced by TSCR changed greatly, but the subgrain size of finished product is almost same to that of conventional technological; after technological be optimized, primary recryatal grains were finer and more uniform, the secondly recrystallization advances perfectly, the magnetic performance was improved; techniques to produce grain oriented silicon steel with main inhibitor Cu2S by TSCR is viable.