Wound Core

Abstract: This wound core comprises a wound core body in which multiple polygonal ring-shaped grain-oriented electromagnetic steel plates are laminated in a side view, wherein: flat sections and bent sections of the grain-oriented electromagnetic steel plates alternately continue in a longitudinal direction; and provided that in a flat section in the vicinity of at least one bent section, a three-dimensional crystal misorientation between two adjoining points in a sequence of points arranged at regular intervals in an extending direction of the bent section is defined as f, the total number of measured data of f as Nx, the number of data satisfying f = 1.0° as Nt, the number of data satisfying f being 1.0° to less than 2.5° as Na, the number of data satisfying f being 2.5° to less than 4.0° as Nb, and the number of data satisfying f being 4.0° or greater as Nc, the following formulas (1) to (4) are satisfied. (1): 0.10 = Nt/Nx = 0.80 (2): 0.37 = Nb/Nt = 0.80 (3): 1.07 = Nb/Na = 4.00 (4): Nb/Nc = 1.10

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