Title:
磁性に優れた方向性電磁鋼板及びその製造方法
Document Type and Number:
Japanese Patent JP5756862
Kind Code:
B2
Abstract:
The present invention relates to manufacturing a grain-oriented electric steel sheet. The present invention relates to a method for manufacturing a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet manufactured by the method, wherein the method comprises heating a slab comprising 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities, performing hot-rolling of the heated slab, performing cold-rolling one time or twice or more times including an intermediate annealing, performing decarbonization and re-crystallizing annealing, and performing secondary re-crystallizing annealing.
Inventors:
Han, Gyu-suk
Rim, jase
Hong, Byung-Doo
Han, Chang-Hee
Rim, jase
Hong, Byung-Doo
Han, Chang-Hee
Application Number:
JP2013540906A
Publication Date:
July 29, 2015
Filing Date:
December 21, 2011
Export Citation:
Assignee:
POSCO
International Classes:
C21D8/12; C22C38/00; C22C38/60; H01F1/16
Domestic Patent References:
| JP10204532A | ||||
| JP2002212639A | ||||
| JP2000256810A | ||||
| JP2004169179A | ||||
| JP2007239009A | ||||
| JP2008144231A | ||||
| JP2000129356A | ||||
| JP10102150A |
Foreign References:
| US3802937 |
Other References:
M. Markuszewicz et al.,Stability of Inclusions and the Formation of Secondary Grains in Silicon-Iron Alloys,Transactions of the Metallurgical Society of AIME,米国,1966年 2月,第236巻,p. 196-200
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara