短流程CSP和2250 mm轧制生产50W600无取向硅钢组织及性能对比

Comparison of microstructure and properties of 50W600 non-oriented silicon steel produced by CSP short process and 2250 mm rolling process

针对短流程CSP和半连轧2250 mm两种不同热轧工艺所生产的50W600无取向硅钢,进行力学拉伸试验、显微组织观察及织构分析,研究两种工艺生产的无取向硅钢在组织状态和整体性能上的差异。结果表明:短流程CSP工艺生产的50W600无取向硅钢显微组织较为均匀,平均晶粒尺寸较2250 mm热轧工艺生产的粗大,热轧板力学性能略低。短流程CSP工艺生产的50W600无取向硅钢成品板酸轧、连续退火后不利织构相对较少,磁性能优于2250 mm热轧工艺生产的50W600钢。

The mechanical tensile test,microstructure observation and texture analysis for 50 W600 non oriented silicon steel produced by two different hot rolling processes(CSP and 2250 mm semi continuous rolling)were carried out to study the difference of microstructure and comprehensive properties between the two processes.The results show that the microstructure of the non oriented silicon steel 50 W600 produced by CSP process is more uniform,the average grain size is larger than that of produced by 2250 mm hot rolling process,and the mechanical properties of the hot rolled plate are slightly lower.The unfavorable texture of 50 W600 non-oriented silicon steel produced by short-process CSP after acid rolling and continuous annealing is relatively less,and the magnetic properties are better than that of produced by2250 mm hot rolling process.