CPC C21D 8/1277 (2013.01) [C21D 8/12 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); H01F 1/147 (2013.01); C21D 2201/05 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/34 (2013.01); C22C 38/60 (2013.01)] | 6 Claims |
1. A method of producing a grain-oriented electrical steel sheet, comprising:
after final annealing, delivering the grain-oriented electrical steel sheet wound in a coil shape into a production line having a pressure reduced area;
then in the production line, heating the delivered grain-oriented electrical steel sheet to 50° C. or higher and 150° C. or lower, followed by cooling the grain-oriented electrical steel sheet such that the grain-oriented electrical steel sheet has a temperature of lower than 50° C. at the time of entering the pressure reduced area; and
then irradiating a surface of the grain-oriented electrical steel sheet with an electron beam in the pressure reduced area of the production line.
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