Qualitative and quantitative analysis of inclusions in non-oriented silica steel with different trademark
MIAO Le-de, ZHANG Yi, ZHANG Feng, WANG Guo-dong, WANG Bo
Technology, Slovak University of Technology, Bratislava, Slovak Republic; 4. Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, Slovakia; 5. Institute of Physics, SAS,Dubravska cesta 9, 845 11 Bratislava, Slovak Republic
Abstract：Inclusions in non-oriented silica steel could inhibit the growth of grain and cause discontinuity of micro-structure. The configuration, content and size distribution of inclusion have different effects on the performance of silica steel, especially significanton the magnetic property. Therefore, it is very useful to completely characterize inclusions with full size distribution in silica steel. In our research, full size analysis method for inclusion in silica steel had been established as follows: sample preparation-small sample electrolysis-filtration and gold spray-SEM observation with different magnification and statistics of different inclusions. Combining the statistics results and electrolysis loss, the volume distribution data of inclusion could be achieved. In this paper, the configuration, content and size distribution of inclusion in non-oriented silica steel with different trademark and producing process had been characterized. Preliminary research on the relation between inclusions and magnetic property had been performed, which provided certain reference value for the technical study of non-oriented silica steel.
