| 摘要 |
PURPOSE:To obtain the titled filament suitable as a magnetic sensor, etc., by rotating a rotary drum at high speed to form a cooling liquid in the drum, spraying an iron type metal through a specific spinning nozzle into the liquid, cooling and solidifying. CONSTITUTION:A rotary drum 6 is rotated at high speed and a rotary liquid film layer 8 consisting of a cooling medium such as water, etc., is formed on the inner peripheral face of the drum. Then, a molten iron type metal which is Fe-Si alloy, Fe-Al alloy or Fe-Si-Al alloy is sprayed from a jetting nozzle 2 having <=200mu particle diameter at the under surface of a crucible 1 toward a liquid face 9 of the liquid film layer 8 and the iron type filament is made into a filament 4. The filament 4 is rapidly cooled, solidified, wound in the drum to give the aimed filament having dendrite texture, containing single crystal part of bamboo node space shape. |
