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

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3754

Lastpage

3756

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, H_c) 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619561

Filename

619561