| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating body for stirring molten bath capable of stabilizing a bubble releasing amount to the molten bath, and keeping high fine dispersibility of bubbles, even when dispersion is found in an inert gas supply amount, and preventing change in degassing performance and slag eliminating performance with time. SOLUTION: In this rotating body for stirring molten bath, constituted by fixing a disc-shaped rotor 2 to a lower portion of a hollow pipe-shaped shaft 1 having an inert gas introduction hole 11, the inside of the rotor is provided with a gas storing portion 21 opened at its bottom surface and storing an insert gas, an outer peripheral edge portion of the rotor is provided with groove-shaped recessed portions 22 and projecting portions 23 held between the recessed portions in adjacent to each other, and a plurality of gas jetting ports 24 are formed on the recessed portions in a state of being communicated with the gas storing portion. COPYRIGHT: (C)2008,JPO&INPIT
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