公开(公告)号：US20210174985A1

公开(公告)日：2021-06-10

申请号：US16065318

申请日：2016-12-22

申请人： POSCO

发明人： Min Serk KWON ,  Hyun Seok KO

IPC分类号： H01B3/12 ,  C21D8/12 ,  C09D7/61 ,  C09D7/40

摘要： An insulation film composition for a grain-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 10-50 parts by weight of metal silicate or organic silicate, 20-70 parts by weight of inorganic nanoparticles and 0.1-20 parts by weight of cobalt hydroxide.
The insulation film composition for the grain-oriented electric steel sheet according to an exemplary embodiment of the present invention includes 10-50 parts by weight of metal phosphate, 5-30 parts by weight of inorganic nanoparticles having a particle diameter of 1 nm to less than 10 nm, inorganic nanoparticles having a particle diameter of 10 to 100 nm and 0.1-20 parts by weight of chromium oxide.

公开(公告)号：US11335475B2

公开(公告)日：2022-05-17

申请号：US16065318

申请日：2016-12-22

申请人： POSCO

发明人： Min Serk Kwon ,  Hyun Seok Ko

IPC分类号： H01B3/12 ,  C21D8/12 ,  C09D7/61 ,  C09D7/40 ,  B82Y30/00 ,  B82Y40/00

摘要： An insulation film composition for a grain-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 10-50 parts by weight of metal silicate or organic silicate, 20-70 parts by weight of inorganic nanoparticles and 0.1-20 parts by weight of cobalt hydroxide. The insulation film composition can further include 10-50 parts by weight of metal phosphate, and/or 5-30 parts by weight of inorganic nanoparticles having a particle diameter of 1 nm to less than 10 nm, and/or inorganic nanoparticles having a particle diameter of 10 to 100 nm and/or 0.1-20 parts by weight of chromium oxide.

公开(公告)号：US11848122B2

公开(公告)日：2023-12-19

申请号：US17721936

申请日：2022-04-15

申请人： POSCO

发明人： Min Serk Kwon ,  Hyun Seok Ko

IPC分类号： H01B3/12 ,  C09D7/61 ,  C09D7/40 ,  C21D8/12 ,  B82Y30/00 ,  B82Y40/00

CPC分类号： H01B3/12 ,  C09D7/61 ,  C09D7/67 ,  C09D7/68 ,  C21D8/1283 ,  B82Y30/00 ,  B82Y40/00

摘要： An insulation film composition for a grain-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 10-50 parts by weight of metal silicate or organic silicate, 20-70 parts by weight of inorganic nanoparticles and 0.1-20 parts by weight of cobalt hydroxide. The insulation film composition can further include 10-50 parts by weight of metal phosphate, and/or 5-30 parts by weight of inorganic nanoparticles having a particle diameter of 1 nm to less than 10 nm, and/or inorganic nanoparticles having a particle diameter of 10 to 100 nm and/or 0.1-20 parts by weight of chromium oxide.