| 摘要 |
<p>Disclosed is an oriented electrical steel sheet. According to an embodiment of the present invention, a method to manufacture the oriented electrical steel sheet comprises the steps of: providing a slab including 2.8-3.6 wt% of Si, 0.020-0.040 wt% of acid soluble Al; 0.0030-0.0075 wt% of N, 0.04-0.07 wt% of C, 0.02-0.075 wt% of P, and residual Fe and other inevitably impurities; heating the slab, hot rolling the same, and manufacturing a hot rolled steel sheet; cold rolling the hot rolled steel sheet, and manufacturing a cold rolled steel sheet; primarily recrystallization-annealing the cold rolled steel sheet; and finally annealing an electrical steel sheet which is primarily recrystallization-annealed, wherein the primarily recrystallization-annealing temperature satisfies a condition of 910 - (1000 X [C]) <= T <= 920 - (1000 X [C]).</p> |
