【摘要】 试验研究了CaO-TiO₂-Al₂O₃,CaO-Al₂O₃-SiO₂及CaO-BO₃-SiO₂渣系及工业渣中TiO₂,Al₂O₃及B₂O₃含量对钢水脱氮率的影响,其脱氮率可达55～65％。在三个渣系中,随着TiO₂、Al₂O₃及B₂O₃含量的变化,脱氮率有一最大值。钢中和渣中氧位愈低,脱氮率愈高,增加渣中碳、铝及钢中铝的含量,可以提高合成渣脱氮效果。更多还原

【Abstract】 The effects of TiO₂, Al₂O₃ and B₂O₃ in CaO-TiO₂-Al₂O₃, CaO-Al₂O₃-SiO₂, CaO-B₂O₃-SiO₂slags and industrial slags on denitrogenation of molten steel were studied, 55-65% of denitro-genation was achieved. A maximum denitrogenation was found by changing TiO₂ Al₂O₃ andB₂O₃ in the above mentioned synthetic slags. It also shows that the lower the oxygen poten-tial in molten steel and slag, the higher the degree of denitrogenation. The denitrogenationof molten steel with synthetic slag was improved with the increase of C, Al content in slagand Al in molten steel.更多还原