SHEET FROM ORIENTED ELECTRICAL STEEL AND METHOD FOR ITS MANUFACTURING Russian patent published in 2023 - IPC C21D8/12 H01F1/16 

FIELD: metallurgy.

SUBSTANCE: invention is related to sheets of grain-oriented electrical steel used as a material of iron cores of transformers. The sheet has a linear deformation area extending linearly in a direction crossing the rolling direction of the steel sheet. The linear deformation area includes an area having a compressive stress in the rolling direction and includes a region subjected to energy beam irradiation. The length in the rolling direction of the linear deformation area is twice or less than the width of the energy beam irradiation in the rolling direction. In a region adjacent in the rolling direction to the region having compressive stress, there is a region having tensile stress in the rolling direction.

EFFECT: provides low iron losses and the required magnetostrictive properties.

5 cl, 11 dwg, 1 tbl