| 摘要 |
PROBLEM TO BE SOLVED: To provide a chromium-free electrical steel sheet with an insulating film which is excellent in film characteristics, such as blanking properties, and in addition, is improved in the appearance of a product sheet in particular, mealy properties, and flawing resistance after stress relief annealing. SOLUTION: The electrical steel sheet with the insulating film has the insulating film containing Al compound and Si compound, one or two or more kinds of easily ionizable elements (exclusive of Cr), other than Al, which have the higher tendency to ionization than Fe and can be made into bivalent or higher valent ions in an aqueous medium, and a resin, and the insulating film having 5 to 50mass% by solid content ratio of a resin content in the film, and 0.1 to 100 parts by mass in total in terms of element of the easily ionizable elements per 100 parts by mass in total in terms of Al<SB>2</SB>O<SB>3</SB>and SiO<SB>2</SB>of the Al and Si compounds on the surface and has the excellent appearance and film characteristics. COPYRIGHT: (C)2005,JPO&NCIPI
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