| 摘要 |
PROBLEM TO BE SOLVED: To provide a detection method for correctly detecting internal cracks which can be caused at the time of obtaining a continuously cast slab by a relatively simple method, and to provide a detection device used therefor and capable of detecting the same at a low cost. SOLUTION: In the device for detecting the internal cracks w of the continuously cast slab M lowering from a die 1 to the lower part, a non-contact type sensor C for detecting the dislocation of a bolt head 8 projecting from the end face of the rotary shaft 5 of any support roller 3 in a plurality of support rollers 3 rotating in contact with the side face of the continuously cast slab M to the side of a bearing 10 is provided near the bearing 10. COPYRIGHT: (C)2006,JPO&NCIPI
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