The microstructure

texture and electromagnetic properties of high-grade cold-rolled 50W300 non oriented electrical steel 2. 3 mm hot-rolled plate with normalizing at low temperature ( 820°C ) and high temperature (920 X.) are studied by means of EBSD ( electron back-scatting diffraction) detection etc analysis and magnetic property measurement technology. It is found that when the normalizing treated process is at 920 T for 2 min (45 m/min)

the iron loss of the finished electrical steel is the lowest and the magnetic induction is the highest. Under such process conditions

the grain structure of the outer layer of the electrical steel coil is rapidly decarburized. The grain growth of the subsurface layer is slow

and the grain is small and uniform. When the center layer structure is recrystallized

they are uniform in size. And the texture level reduces

the surface texture is slow

the texture in sub-surface and the central layer are similar to the cold- rolled textures

the texture ratio of the magnetic properties of electrical steel increase.