FIELD: technological processes.
SUBSTANCE: group of inventions relates to textured electrical steel sheet and method of its production. Textured electrotechnical sheet steel includes sheet steel, film A, containing crystalline material and located on sheet steel, and film B containing glass-like material and located on film. Profile for the element obtained using the light-emission analysis method of the surface with high-frequency glow discharge in the direction from the film to the sheet steel satisfies formulas (1) and (2) below: 0.35 ≤ (tA/tFe/2) ≤ 0.75 (1); 0.25 ≤ (tA/2/tFe/2) ≤ 1.00 (2), in which tA is peak time on profile for element of alkali metal, tA/2 is time of half value on profile for element of alkali metal.
EFFECT: technical result is provision of textured electrical steel sheet, in which high-tension action is applied to sheet steel, and adhesion of coating is excellent.
16 cl, 2 dwg, 3 tbl, 3 ex
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|
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