| 摘要 |
PURPOSE: A non-oriented electrical steel sheet with an excellent magnetic property and a manufacturing method thereof are provided to obtain the high magnetic property of the electrical steel sheet by improving the mobility of a magnetic domain wall and the growth of crystal grains. CONSTITUTION: A non-oriented electrical steel sheet with an excellent magnetic property is made of Al(Aluminum) 1.0~3.0wt.%, Si(Silicon) 0.5~2.5wt.%, Mn(Manganese) 0.5~2.0wt.%, N(Nitrogen) 0.001~0.004wt.%, S(Sulfur) 0.0005~0.004wt.%, and inevitable impurities. The Al, Mn, N, and S satisfy the following condition equations. A first condition equation is {[Al]+[Mn]}Δ3.5. A second condition equation is 0.002Δ{[N]+[S]}Δ0.006. A third condition equation is 300Δ{([Al]+[Mn])/([N]+[S])}Δ1,400. |
