【摘要】 在感应炉上进行的底吹CO₂、N₂、CO₂+N₂的复吹模拟实验研究表明,熔池中氮的行为受底吹气体性质、脱碳速度和钢液氧化性的影响;钢液吸氮的动力学规律,随底吹气体的性质不同而有差别,底吹单一CO₂或N₂时,分别为二级反应和一级反应,并求得二级反应的速度常数和氮在钢液中的传质系数分别为K_-1=0.044（Wt%）^-1·cm·s^-1,K_d=0.0308cm·s^-1,底吹CO₂+N₂混合气体时,近似表观二级反应,其表观速度常数K₂=0.0406（Wt％）^-1cm·s^-1。更多还原

【Abstract】 A simulation test for combined blowung with bottom stirring gases of CO₂、N₂ and CO₂+N₂ in induction furnace shows that N₂ behavior in the bath, will be influenced by kinds of bottom stirring gas、decarburizing rate and oxidizing property of molten steel; N₂ absorption dynamics rule of the molten steel will vary with different kind of bottom stirring gases, when bottom blowing single gas: CO₂ or N₂, they correspond to second class and first class reaction respectively, as for second class reaction, speed constant and mass transfer coefficient of N₂ in the molten steel are K_-1=0. 044（wt%）^-1·cm·s^-1, K_d=0.0308cm·s^-1; when blowing mixed gas of CO₂ +N₂, it approches apparent second class reaction, and its apparent speed constant is K′₂=0.0406（wt%）^-1·cm·s^-1.更多还原