US 2026/0307173 A1 · GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

Abstract

This grain-oriented electrical steel sheet includes a steel sheet including a plurality of grooves elongated in a direction intersecting with a rolling direction. When the average of average depths in the elongated direction of all grooves of the plurality of grooves is denoted by d in a unit of μm, and a standard deviation of the average depth in the elongated direction is denoted by σ in a unit of μm, three or more-type average depths in the elongated direction of the plurality of grooves are provided, a magnetic flux density B8A is 1.795 to 1.975 T, and the B8A, the σ, and the d satisfy the following formula: - 4 . 0 × B ⁢ 8 Λ + 7 . 8 ⁢ 0 ≤ σ / d ≤ - 4 . 0 × B ⁢ 8 Λ + 9 . 0 ⁢ 0 .

Claims18

Dependent claims

A grain-oriented electrical steel sheet comprising:

a steel sheet including a plurality of grooves elongated in a direction intersecting a rolling direction, wherein
when an average of average depths in an elongated direction of all grooves of the plurality of grooves is denoted by d in a unit of μm, and a standard deviation of the average depths in the elongated direction is denoted by σ in a unit of μm,
three or more-type average depths in the elongated direction of the plurality of grooves are provided,
a magnetic flux density B8A is 1.795 to 1.975 T, and
the B8A, the σ, and the d satisfy Formula (1),
-
4
.
0
×
B
⁢
8
A
+
7
.
8
⁢
0
≤
σ
/
d
≤
-
4
.
0
×
B
⁢
8
A
+
9
⁢
.00
.
(
1
)

39 more elements

Dependencies are inferred from the claim text.

Grain-oriented electrical steel sheet and method for manufacturing same

Life of this patent

Grain-oriented electrical steel sheet and method for manufacturing same

Life of this patent

Abstract

Claims18