| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel plate straightening method for obtaining a steel plate which has a small variation in a residual stress and has an excellent shape. SOLUTION: When straightening the steel plate by passing it a plurality of pass times between a plurality of straightening rolls, the number of straightening rolls is made nine or less and the number of pass times is made three. Further, the rates of plastic deformation are made: 80-85% at a 1st pass, 70-75% at a 2nd pass, and 60-65% at a 3rd pass. COPYRIGHT: (C)2005,JPO&NCIPI
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