| 摘要 |
Disclosed is a method for manufacturing an oriented electrical steel sheet. The method for manufacturing the oriented electrical steel sheet according to the present invention includes a step which reheats a slab comprising 2.0-4.0 wt% of Si, 0.01-0.04 wt% of acid soluble Al, 0.20 wt% or less of Mn, 0.005 wt% or less of N, 0.005 wt% or less of S, 0.005 wt% or less of C, 0.001-1.0 wt% of Ni, and the rest consisting of Fe and other inevitable impurities; a step which hot-rolls the reheated slab; a step which anneals the hot-rolled steel sheet manufactured by hot-rolling; a step which cold-rolls the annealed hot-rolled steel sheet; a step which recrystallization-anneals and nitrogen-anneals the cold-rolled steel sheet; and a step which hot-anneals the recrystallization-annealed and nitrogen-annealed steel sheet. |
