| 摘要 |
PURPOSE:To stably produce foil metal having uniform thickness and homogeneous quality by arranging a guide-path of molten metal parallel to rotation shifting direction of a cooling roll surface at a bottom part of a nozzle for injection of the molten metal, at producing the foil metal by rapid cooling for the molten metal by single roll method. CONSTITUTION:The molten metal 7 is injected from a slit 2 of the nozzle 1 made of refractory on the surface of the single roll 3 having excellent heat conductivity as a cooling body, which rotates at high speed, and cooled super- rapidly by injecting on the surface of the single roll 3 for cooling, to produce the amorphous foil metal 8. The back end part 6 of the slit 2, which is arranged at facing toward the cooling roll 3 at the bottom of the nozzle 1, is formed by very narrow gap with the single roll 3, to prevent leakage of the molten metal 7. The tip end part 5 of the slit 2 forms the guide-path 4 for the molten metal 7, which is parallel to developing zone of solidified shell 9 for the molten metal 7, by the gap, which is almost equal to the thickness of the foil metal 8. The foil metal 8 having uniform thickness and homogeneous quality is cast continuously on the surface of the single roll 3 rotated for cooling. |
