Production of very low core loss grain-oriented silicon steel

The present paper is concerned with the production of very low core loss grain-oriented silicon steel. Domain refining techniques and their mechanisms have been studied. A quantitative interpretation for the domain refining phenomena is not sufficient. However, it is anticipated that these results will be based on the same principle, that is, an interaction between tensile stress and subdomains which consists mainly of transverse domains resulted from magnetic free poles and/or internal stress. An attempt to develop grain-oriented silicon steel with almost perfect