GRAIN-ORIENTED MAGNETIC STEEL SHEET AND PROCESS FOR PRODUCING SAME

摘要

An object of the present invention is to propose a grain oriented electrical steel sheet capable of reducing iron loss when utilized in a iron core for a transformer and the like in a stacked state by means of magnetic domain refinement technique. Specifically, the grain oriented electrical steel sheet of the present invention has thermal strain introduced thereinto in a dotted-line arrangement in which strain-imparted areas have been lined in a direction that crosses the rolling direction of the steel sheet, wherein the strain-imparted areas introduced in the dotted-line arrangement have a size from 0.10 mm or more to 0.50 mm or less and an interval between the adjacent strain-imparted areas is from 0.10 mm or more to 0.60 mm or less.