| 摘要 |
<p>A method for producing a hot rolled electrical steel sheet excellent in magnetic characteristics and corrosion resistance, characterized in that the method comprises providing heating a super high purity iron having the composition: Fe: 99.95 mass % or more, C + N + S: 10 mass ppm or less, O: 50 mass ppm or less, and balance: inevitable impurities, heating the iron to the η region thereof, carrying out a hot rolling at the η region under a condition wherein a total draft is 50 % or more and the friction coefficient between a roll and a rolled material is 0.3 or less at least in one pass, and then cooling the rolled iron under a condition wherein the average cooling speed in the range of Ar3 transformation point to 300°C is 0.5 to 150°C/min, thereby forming orientation grains having ∫100⊃ axes integrated to the direction perpendicular to a sheet plane.</p> |
