ANNEALING SEPARATOR COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

摘要

The present invention provides an annealing separator composition, a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet.An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of present invention comprising: on the basis of total solid 100 wt%, 5 to 70 wt% of mullite; and the remainder being magnesium oxide or magnesium hydroxide.