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Reduction of iron loss in thin grain-oriented silicon steel sheets

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4 Author(s)
M. Nakano ; Dept. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Japan ; K. Ishiyama ; K. I. Arai ; H. Fukunaga

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%

Published in:

IEEE Transactions on Magnetics  (Volume:33 ,  Issue: 5 )