| 摘要 |
<p>Provided is an electromagnetic steel sheet having an insulating coating, which has excellent punchability, excellent coating adhesiveness, and excellent coating characteristics after annealing, even without including a chrome compound in the insulating coating. This electromagnetic steel sheet having an insulating coating is characterized by having an insulated coating having a surface treatment agent coated and dried on at least one surface of the electromagnetic steel sheet, said surface treatment agent including: at a mass ratio (A/B) of less than 0.05-1.0, a trialkoxysilane and/or a dialkoxysilane (A) comprising only at least one type of non-reactive substituent group selected from hydrogen, an alkyl group, and a phenyl group; and a silane coupling agent (B).</p> |
