Influence of normalizing on inclusions of high grade non-oriented silicon steel

In this paper, the influence of normalizing on inclusions of the non-oriented silicon steel is studied. The indirect effect of the inclusion state on the magnetic property of the finished product was analyzed. The main results show that normalizing of the high grade non-orientated silicon steel can significantly increase the size of the inclusions, reduce the distribution density of the inclusions, and improve the volume fraction of the inclusions in the steel. The increasing temperature increases the size of the inclusions, the distribution density of the inclusions decreases to varying degrees, and the influence of normalizing temperature on the volume fraction of inclusions is nonlinear. The influence of normalizing time on the size, the distribution density and the volume fraction of inclusions is nonlinear. The distribution density of the inclusions was the most important effect on the iron loss of the finished product, and the effect of the volume fraction of the inclusions was not obvious. As long as the distribution density is low, no matter the size is obviously large or slightly small, less iron loss of the finished product can be obtained.