METHOD OF MANUFACTURING HIGH MAGNETIC FLUX ORIENTED ELECTRIC STEEL SHEET EXCELLENT IN MAGNETISM AND ECONOMY

摘要

PURPOSE: A method of manufacturing a high magnetic flux oriented electric steel sheet is provided to be economic and excellent in magnetic characteristic by forming an inhibitor through decarbonization and nitrification and simplifying the final annealing condition. CONSTITUTION: An oriented electric steel sheet consists of, by weight %: not more than 0.1% of C, 1.0-4.8% of Si, 0.010-0.05% of Al, 0.05-2.0% of Mn, not more than 100ppm of N, not more than 0.01% of S, Fe and incidental impurities. The oriented electric steel sheet is heated at a temperature of 1100-1250°C and passes through the processes of hot rolling, annealing, nitrifying and final annealing.