Title :
Reduction of iron loss in thin grain-oriented silicon steel sheets
Author :
Nakano, M. ; Ishiyama, K. ; Arai, K.I. ; Fukunaga, H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Japan
fDate :
9/1/1997 12:00:00 AM
Abstract :
We investigated the effect of the intermediate annealing conditions on the grain textures and the magnetic properties in thin grain-oriented silicon steel sheets produced by the three-stage rolling method. It was found that the lower the intermediate annealing temperature is, the better the [001] orientation is achieved. In addition, the reduction of the intermediate annealing temperatures improves dc magnetic properties (B8, Hc) and enables to reduce the iron loss in thin silicon steels. The measured iron loss W13/50 under the applied tensile strength of 2 kg/mm2 was 0.28 W/kg, which is less than that of the conventional (300 μm) grain-oriented silicon steels by about 50%
Keywords :
annealing; coercive force; cold rolling; electromagnetic induction; ferromagnetic materials; iron alloys; magnetic leakage; silicon alloys; tensile strength; texture; Fe loss reduction; Fe-Si; applied tensile strength; grain textures; intermediate annealing conditions; magnetic properties; thin grain-oriented Si steel sheets; three-stage rolling method; Annealing; Furnaces; Iron; Loss measurement; Magnetic hysteresis; Magnetic properties; Silicon; Steel; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on