Original scientific paper

Study on production of conventional grain oriented (CGO) silicon steel without normalizing process

Y. Y. Shao ; College of Applied Technology, University of Science and Technology Liaoning, Anshan City, China

Abstract

The production of conventional grain oriented silicon steel without normalizing was studied by two-stage cold rolling process, and the orientation evolution was analyzed by optical microscopy (OM) and electron backscatter diffraction (EBSD) technique. The results indicate that, the key of CGO silicon steel hot rolled sheet canceling normalizing process is to obtain as many {111}<112> and Goss oriented grains as possible, meanwhile, it is to increase the nitrogen pressure appropriately during the temperature-rise stage of secondary recrystallization. By controlling the process parameters, the iron loss P_{1, 7} of the finished product is 1,258 W/kg, and the magnetic induction B₈ is 1,840 T. Furthermore, the cubic orientation can be retained more in CGO silicon steel after annealing due to the less influence of columnar grain.

Keywords

CGO silicon steel; sheet; normalizing; annealing; microstructure

Hrčak ID:

224763

URI

https://hrcak.srce.hr/224763

Publication date:

1.1.2020.

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