公开(公告)号：US11634786B2

公开(公告)日：2023-04-25

申请号：US16958351

申请日：2018-09-10

申请人： POSCO

发明人： Jae-Hoon Kim ,  Geun Ha Jun ,  So Hyun Park

IPC分类号： C21D9/46 ,  C21D8/12 ,  C21D6/00 ,  C22C38/60 ,  C22C38/02 ,  C22C38/06 ,  C22C38/00 ,  H01F1/147

摘要： A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes, by weight, Si: 2.0 to 3.5%, Al: 0.3 to 2.5%, Mn: 0.3 to 3.5%, Sn: 0.0030 to 0.2%, Sb: 0.0030 to 0.15%, P: 0.0040 to 0.18%, individually or in a total amount of 0.0005 to 0.03% of at least one of Ga and Ge, and a remainder including Fe and unavoidable impurities, and satisfies Equation 1 below. 0.05≤([Sn]+[Sb])/[P]≤25  [Equation 1] ([Sn], [Sb], and [P] respectively represent the content (% by weight) of Sn, Sb, and P.)

公开(公告)号：US20210062287A1

公开(公告)日：2021-03-04

申请号：US16958351

申请日：2018-09-10

申请人： POSCO

发明人： Jae-Hoon Kim ,  Geun Ha Jun ,  So Hyun Park

IPC分类号： C21D9/46 ,  C21D8/12 ,  C21D6/00 ,  C22C38/60 ,  C22C38/02 ,  C22C38/06 ,  C22C38/00 ,  H01F1/147

摘要： A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes, by weight, Si: 2.0 to 3.5%, Al: 0.3 to 2.5%, Mn: 0.3 to 3.5%, Sn: 0.0030 to 0.2%, Sb: 0.0030 to 0.15%, P: 0.0040 to 0.18%, individually or in a total amount of 0.0005 to 0.03% of at least one of Ga and Ge, and a remainder including Fe and unavoidable impurities, and satisfies Equation 1 below. 0.05≤([Sn]+[Sb])/[P]≤25   [Equation 1] ([Sn], [Sb], and [P] respectively represent the content (% by weight) of Sn, Sb, and P.)

公开(公告)号：US11254997B2

公开(公告)日：2022-02-22

申请号：US16470786

申请日：2017-12-19

申请人： POSCO

发明人： Hunju Lee ,  Dong Gwan Kim ,  So Hyun Park ,  Kyunghan Kim

IPC分类号： C21D9/46 ,  C22C38/34 ,  C22C38/24 ,  C22C38/06 ,  C22C38/04 ,  C22C38/00 ,  C21D8/12 ,  C21D8/00 ,  C21D6/00 ,  H01F1/147

摘要： An embodiment of the present invention provides a non-oriented electrical steel sheet, including Si at 2.0 to 4.0 wt %, Al at 1.5 wt % or less (excluding 0 wt %), Mn at 1.5 wt % or less (excluding 0 wt %), Cr at 0.01 to 0.5 wt %, V at 0.0080 to 0.015 wt %, C at 0.015 wt % or less (excluding 0 wt %), N at 0.015 wt % or less (excluding 0 wt %), and the remainder including Fe and other impurities unavoidably added thereto. 0.004≤([C]+[N])≤0.022  [Equation 1] (In Equation 1, [C] and [N] represent a content (wt %) of C and N, respectively.)

公开(公告)号：US20200087749A1

公开(公告)日：2020-03-19

申请号：US16470786

申请日：2017-12-19

申请人： POSCO

发明人： Hunju Lee ,  Dong Gwan Kim ,  So Hyun Park ,  Kyunghan Kim

IPC分类号： C21D9/46 ,  C22C38/34 ,  C22C38/24 ,  C22C38/06 ,  C22C38/04 ,  C22C38/00 ,  C21D8/12 ,  C21D8/00 ,  C21D6/00 ,  H01F1/147

摘要： An embodiment of the present invention provides a non-oriented electrical steel sheet, including Si at 2.0 to 4.0 wt %, Al at 1.5 wt % or less (excluding 0 wt %), Mn at 1.5 wt % or less (excluding 0 wt %), Cr at 0.01 to 0.5 wt %, V at 0.0080 to 0.015 wt %, C at 0.015 wt % or less (excluding 0 wt %), N at 0.015 wt % or less (excluding 0 wt %), and the remainder including Fe and other impurities unavoidably added thereto. 0.004≤([C]+[N])≤0.022   [Equation 1] (In Equation 1, [C] and [N] represent a content (wt %) of C and N, respectively.)