公开(公告)号：US20200373046A1

公开(公告)日：2020-11-26

申请号：US16966268

申请日：2019-01-31

申请人： JFE STEEL CORPORATION

发明人： Hirotaka INOUE ,  Seiji OKABE ,  Takeshi OMURA

IPC分类号： H01F1/16 ,  H01F27/245 ,  H01F41/02 ,  C22C38/44 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

摘要： A grain-oriented electrical steel sheet for a stacked transformer core. The steel sheet having a sheet thickness t, where t and an iron loss deterioration ratio obtained by subjecting the steel sheet under elliptic magnetization satisfy the following relations: (i) when t 0.20 mm, the iron loss deterioration ratio is 85% or less; (ii) when 0.20 mm