FIELD: metallurgy.
SUBSTANCE: invention relates to textured electrical steel sheet having reduced losses in iron. Grain-oriented electrical steel sheet contains on both surfaces of steel sheet forsterite film and coating creating tensile stress. Textured sheet subjected to grinding processing of magnetic domains by creating linear thermal deformation. Amount of bending in rolling direction of steel sheet in form of curvature radius of curved surface is 600-6000 mm and surface, in which said deformation is created is inner side. Amount of bending in direction perpendicular to rolling direction of curvature radius of curved surface is 2000 mm or more, and said surface, wherein said strain is created, is the inner side.
EFFECT: reduced noise transformer core made from such sheets.
4 cl, 4 dwg, 2 tbl, 2 ex
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Authors
Dates
2016-02-27—Published
2012-12-19—Filed