Behavior of microinclusions in cold-rolled non-oriented silicon steel

The amount, size distribution and style of microinclusions in non-oriented silicon steel sheets with or without calcium treatment were studied by metalloscope, image analytical meter, scan electron microscope and transmission electron microscope. The results show that microinclusions in the range of 0.1 to 0.4 μm influence the core loss of silicon steel sheets greatly but the style ofmicroinclusions has less influence.