Non-magnetization modification source-containing paste, non-magnetization device, rotor core, and method for manufacturing the same

Abstract

A rotor core in which electrical steel sheets each including a Fe—Si alloy are layered with an insulation coating being interposed between the electrical steel sheets. The electrical steel sheets each include a bridge portion including a Fe—Si—Mn—C alloy, the bridge portion having been subjected to non-magnetization modification with a non-magnetization modification source-containing paste including a manganese powder which is a non-magnetization modification source and a resin ink containing a component capable of being carbonized by heating.

Dependencies are inferred from the claim text.