| 摘要 |
<p>The present invention relates to a grain-oriented electrical steel sheet and a manufacturing method thereof. The method for manufacturing a grain-oriented electrical steel sheet comprises the steps of manufacturing a steel slab, hot rolling, preliminary annealing, and cold rolling. The steel slab includes 2.0 to 4.0 wt% of Si; 0.01 to 0.05 wt% of Sn; 0.01 to 0.05 wt% of P; and 0.05 to 0.10 wt% of Mn. The preliminary annealing process is to add, to 100 parts by weight of hydrochloric acid solution, 0.1 to 5 parts by weight of an acid cleaning accelerator composed of an organosulfur compound, an organic acid compound, or organic acid and organosulfur compounds.</p> |
