COMPOSITION OF ORIENTED ELECTRICAL STEEL SHEET FOR FORMING INSULATION FILM, METHOD FOR FORMING INSULATING FILM USING THE SAME, AND ORIENTED ELECTRICAL STEEL SHEET MANUFACTURED BY THE METHOD

摘要

The present invention relates to an insulating coating composition for an electric steel sheet, a method for forming an insulating coating on an electric steel sheet using the same, and a directional electric steel sheet, which comprises 25 to 300 parts by weight of silica, Based on the total amount of the bismuth compound and the bismuth compound, and a method for forming the insulating coating of the directional electrical steel sheet using the same and a directional electrical steel sheet produced thereby.