| 摘要 |
PURPOSE:To deoxidize efficiently the molten steel in a metallurgical reaction vessel by submerging deeply the other end part of a conduit for transferring molten Al connected to an Al melting furnace into the molten steel in said vessel. CONSTITUTION:The other end part 6b of a conduit 6 for transferring molten Al connected to an Al melting furnace 2 is submerged deeply into the molten steel C in a metallurgical reaction vessel 1. Thereupon, a furnace cover 4 is mounted in the furnace 2 and an inert gas is introduced through a supply pipe 5 and is pressurized to feed the motlen Al (B) in the furnace 2 together with the inert gas into the vessel 1. When the molten Al (B) is incorporated into the molten steel (C), the molten Al (B) and the oxygen in the steel (C) binds with each other and the oxidation reaction is accelerated. The resulted alumina (D) is floated and removed together with the other slag. |
