	US 12,234,527 B2
	Non-oriented electrical steel sheet and method for producing same
June Soo Park, Pohang-si (KR); and Dae-Hyun Song, Pohang-si (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR)
Appl. No. 17/415,812
Filed by POSCO, Pohang-si (KR)
PCT Filed Dec. 18, 2019, PCT No. PCT/KR2019/018032 § 371(c)(1), (2) Date Jun. 18, 2021, PCT Pub. No. WO2020/130644, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10-2018-0165655 (KR), filed on Dec. 19, 2018.
Prior Publication US 2022/0056550 A1, Feb. 24, 2022
Int. Cl. C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); H01F 1/147 (2006.01)

CPC C21D 9/46 (2013.01) [C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); H01F 1/147 (2013.01)]

12 Claims

1. A non-oriented electrical steel sheet comprising, in wt %, C at 0.005% or less (excluding 0%), Si at 0.5 to 2.4%, Mn at 0.4 to 1.0%, S at 0.005% or less (excluding 0%), Al at 0.01% or less (excluding 0%), N at 0.005% or less (excluding 0%), Ti at 0.005% or less (excluding 0%), Cu at 0.001 to 0.02%, and the balance of Fe and inevitable impurities,

wherein

a volume fraction of grains in which an angle formed by a {111} surface and a rolling surface of the steel sheet is 15° or less is 27% or more,

wherein 0.9≤(Vcube+Vgoss+Vr-cube)/Intensitymax≤2.5 is satisfied,

wherein Vcube, Vgoss, and Vr-cube are vol % of a texture of a cube, a goss, and a rotated cube, respectively, and Intensitymax represents a maximum intensity value on an ODF (orientation distribution function) image (Φ2=45 degree section).