| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of magnet material having high magnetic characteristic, a magnet material, and a bond magnet. SOLUTION: A quenched strip manufacturing device 1 is provided with a cylindrical body 2, a heating coil 4, and a cooling roll 5 to be rotated relative to the cylindrical body 2. A nozzle 3 to eject molten metal 6 of a magnet material is formed on a lower end of the cylindrical body 2. In an atmospheric gas, the molten metal 6 is ejected from the nozzle 3, and collided with a circumferential surface 53 of the rotating cooling roll 5, and cooled and solidified to a quenched strip 8. A metallic material to constitute the circumferential surface 53 of the cooling roll 5 has wettability so that the contact angle formed on the horizontal surface of a solidified metal is 70-170 deg. when a droplet of the molten metal 6 is placed and solidified on the horizontal surface of the metallic material. |
