| 摘要 |
PURPOSE:To remove fins effectively and surely by placing a backing plate 14 for cutting that covers the gas cutting surface of a continuously cast ingot on said surface and removing fins while suppressing the rotating behavior of the fins by cutting blades. CONSTITUTION:In the stage of fettling, a backing plate 14 for cutting is brought into abutment on the cutting surface 4a of a continuously cast ingot 4. The plate 14 is so formed as to cover the surface 4a by projecting from the surface 4a by a set height (h). After the abutting of the plate 14, fettling is started by upper, lower cutting blades 10a, 10b. Then, fins 5a, 5b come into contact with the plate 14, and the rotating behavior beyond this is suppressed; therefore, the cutting or stripping effect by the blades 10a, 10b acts upon the same and the melt-stuck points are cut. When the blades 10a, 10b arrive at the plate 14, the cutting ends, and only the ingot 4 is fed in an arrow direction 12. At this same instant, the blades 10a, 10b are retreated, and the fins 5a, 5b fall by gravity. |
