| abstract |
This method of manufacturing a grain-oriented electrical steel sheet involves controlling the degree of oxidation (PH 2 O/PH 2 ) in a decarburization annealing step, controlling the mass ratio of MgO and Al 2 O 3 within an annealing separator in an annealing separator application step, controlling the volume ratio of hydrogen in a mixed gas atmosphere to 50% or greater in a final annealing step, washing using a solution to which an inhibitor has been added in an annealing separator removal step, controlling the average roughness Ra by means of chemical polishing in a smoothing step, and using a coating film formation solution that includes a crystalline phosphide in an insulating coating film formation step. |