| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a non-oriented magnetic steel sheet excellent in etching workability. <P>SOLUTION: The method for producing the non-oriented magnetic steel sheet includes one series of producing processes that a slab for non-oriented magnetic steel as component composition composed of ≤0.08% C, 0.5-8.0% Si, ≤5.0% Mn, ≤5.0% Al and the balance Fe with inevitable impurities, is hot-rolled and if necessary, a hot-rolled plate is annealed at one time or two or more times while interrupted by an intermediate annealing and a finish-annealing is applied, wherein a rolling-reduction ratio in the finish pass is the rough-rolling in the above hot-rolling, is controlled to be ≥30%, and temperature of the steel sheet at the finish process outlet side is controlled to be ≥800°C and <900°C. <P>COPYRIGHT: (C)2009,JPO&INPIT |
