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电炉还原期投入炉内的脱氧造渣剂多使用Fe~-Si,Ca~-Si等粉状材料,近年来又有SiC粉料投入使用。在国外,亦使用铝灰作为强脱氧造渣剂,这种铝灰是在铝的一次精炼及二次精炼时产生的精炼浮渣,以Al_2O_3为主成分,并含有5～50％的金属铝。用这种铝灰作造渣剂可促进还原渣的形成,能迅速白渣化,渣的流动性良好。但铝灰中金属铝的最适宜含量是8～18％,当金属铝含量
Furnace reduction period into the furnace deoxidation slag agent to use more Fe ~ -Si, Ca ~ -Si and other powdery materials, SiC powder in recent years have put into use. In foreign countries, aluminum ash is also used as a strong deoxidizing slag-forming agent. This aluminum ash is a refined scum produced during the primary refining and secondary refining of Al. The main component is Al 2 O 3, and contains 5 to 50% of aluminum . The use of such aluminum ash as slag-forming agent can promote the formation of reduced slag, can quickly white residue, slag flow well. However, aluminum ash in the most appropriate content of aluminum is 8 ~ 18%, when the metal aluminum content