| 摘要 |
PROBLEM TO BE SOLVED: To avoid the development of slippage. SOLUTION: In a sizing-press method for forging a hot slab 5 from the width direction by using dies 1a, 1b having the main pressing surface composed of tapered parts 4 inclining from the inlet side to the advancing direction of the hot slab 5 and parallel parts 2 following the tapered parts 4 and being parallel with the advancing direction, the contact-starting surface of the hot slab 5 with the dies 1a, 1b is in the transition region 3 between the tapered part 4 and parallel part 2 and 5 part of the parallel part 2.
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