| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface conditioning method for a continuously cast slab which completes the work efficiently by distinguishing the necessity and area to be conditioned in advance when the surface conditioning is performed on the cast slab prior to charging it into a heating furnace. SOLUTION: The continuously cast slab is hot-scarfed on its surface, then charged into the heating furnace, and sent to the rolling process after removal of oxide scale generated in the heating furnace. Based on a detection result of the cast slab surface irregularity after hot scarfing and the heating furnace conditions to affect the oxide scale thickness formed during heating, the cast piece surface irregularity after the removal of oxide scale is estimated. If the estimated irregularity exceeds a predetermined threshold value, the irregularity on the cast slab surface is removed before the cast slab is sent to the heating furnace. COPYRIGHT: (C)2005,JPO&NCIPI
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