METHOD FOR DISPERSING FINE GAS BUBBLE INTO MOLTEN METAL, DEVICE THEREFOR AND FINE GAS BUBBLE-CONTAINING METAL

摘要

PROBLEM TO BE SOLVED: To provide a dispersing method of fine gas bubble into molten metal, with which the fine bubble controlled to an arbitrary fixed size of =5 mm radius is introduced and dispersed into the molten metal, and a device thereof and a fine bubble-containing metal. SOLUTION: In the dispersing method of fine gas bubble into the molten metal, circulating movement is given to the molten metal 10 by impressing a rotary magnetic field with a magnet 16 to the molten metal 10 in a reaction vessel 11, and when the gas 14 is supplied from a fine hole 13 on a wall surface 12, the centrifugal force with sp.gr. difference is acted to the bubble 15 and the bubble 15 is moved toward the circular center.