Laminating electromagnetic steel plates, laminated magnetic steel sheets, a method of manufacturing a laminated electromagnetic steel plates, and automotive motors core

摘要

A stacked electrical steel sheet used for a stacked iron core of an automotive motor and the like required to have high-temperature bond property and high-temperature oil resistance is provided. An electrical steel sheet for stacking includes: an electrical steel sheet; and a bond-type insulating coating formed on at least one surface of the electrical steel sheet and having Martens hardness HM of 50 or more and less than 500.