Title:
方向性電磁鋼板およびその製造方法
Document Type and Number:
Japanese Patent JP6496412
Kind Code:
B2
Abstract:
A grain-oriented electrical steel plate of an exemplary embodiment of the present invention has a groove formed on a surface, wherein a curvature radius RBb at a position where a depth of the groove is maximum is 0.2 µm to 100 µm, and a curvature radius RSb on the groove surface from the position where the depth of the groove is maximum to a quarter-way position of the depth D of the groove is 4 µm to 130 µm.
Inventors:
Kwon, Oh-yul
Lee, Won-Gol
Hong, Sung-Chul
Lee, Gyu-Tech
Park, John-Te
Im, Chun-su
Lee, Won-Gol
Hong, Sung-Chul
Lee, Gyu-Tech
Park, John-Te
Im, Chun-su
Application Number:
JP2017533470A
Publication Date:
April 03, 2019
Filing Date:
December 21, 2015
Export Citation:
Assignee:
POSCO
International Classes:
C21D8/12; B23K26/364
Domestic Patent References:
| JP2012087332A | ||||
| JP2007002334A | ||||
| JP2004056090A | ||||
| JP2014194073A | ||||
| JP60103183A | ||||
| JP6057333A | ||||
| JP6158166A | ||||
| JP6057335A | ||||
| JP2012172215A |
Foreign References:
| WO2011125672A1 | ||||
| KR1020130128214A | ||||
| WO2012068868A1 | ||||
| WO2004083465A1 | ||||
| WO2012014290A1 | ||||
| WO2012165393A1 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara