| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-repairing method of a converter, by which the foaming of slag is prevented in tapping molten steel, even when slag coating is executed by adding waste brick containing MgO and C into a residual slag. SOLUTION: In the hot-repairing method of the converter in which a refractory is charged into molten slag left in the converter when the molten steel is tapped and, after swinging this converter, the converter is left standing for a fixed time, and the molten slag is made to stick on the wall of a furnace, a refractory containing MgO and C is used as the above charged refractory and the slag foaming is prevented at the time of tapping of the molten steel when regulating the grain diameter of this refractory to <30 mm. |
