PRODUCTION METHOD FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET

摘要

In accordance with the present invention, a grain-oriented electrical steel sheet that has remarkably reduced magnetic variations within a coil without using any inhibitor component is obtained by: including at least one selected from 0.010-0.200% of Sn, 0.010-0.200% of Sb, 0.010-0.150% of Mo, and 0.010-0.150% of P in mass% in a steel slab with components that contains no inhibitor component; and performing annealing that satisfies a relationship Td ≥ Tf where the maximum annealing temperature at which a steel sheet is annealed during decarburization annealing is Td (°C) and the maximum temperature until secondary re-crystallization of the steel sheet starts during finishing annealing is Tf (°C).