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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。
By studying the microstructure evolution of the oriented silicon steel with Cu2S as the main inhibitor in the whole process of thin slab continuous casting and rolling, the differences before and after the process optimization were compared. The results show that the oriented silicon steel produced by the TSCR process is processed by the conventional post-process process. The average primary crystal grain size of the primary recrystallization is about 15.5 μm and the grain size is 8.61. The secondary crystal grain size and the normal orientation The performance of the finished silicon steel is B8 = 1.865 T, P1.7 / 50 = 1.409 W / kg. After optimization of the process, the primary recrystallized grains are more fine and uniform, the average grain size is about 13.6 μm, Grain size of 9.13, the development of secondary recrystallization is more perfect, the magnetic properties of finished products are improved, B8 = 1.884 T, P1.7 / 50 = 1.394 W / kg; proved to Cu2S inhibitor using TSCR process production orientation Silicon steel is feasible.