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设计了非反应性保护渣,利用热丝法和渣膜热流模拟仪研究了Li_2O含量对其结晶行为和渣膜传热特性的影响.结果表明:在小于2%的范围内增加Li_2O的质量分数可减弱非反应性保护渣的结晶性能;而在2%～5%范围内增加Li_2O的质量分数,则渣系晶体析出孕育时间缩短,结晶温度升高,临界冷却速度增大,结晶速率常数增大,即促进了非反应性渣系的结晶.同时发现,在2%～5%范围内增加Li_2O的质量分数,非反应性保护渣的最大热流密度、平均热流密度及特征时间均减小.
The influence of Li 2 O content on the crystallization behavior and the heat transfer characteristics of the slag film was studied by means of the hot wire method and the slag film heat flow simulator.The results show that when the content of Li 2 O is increased by less than 2% Can reduce the crystallization performance of the non-reactive mold flux; while increasing the mass fraction of Li_2O in the range of 2% ~ 5%, the precipitation time of the slag system is shortened, the crystallization temperature increases, the critical cooling rate increases, Large, that is to promote the crystallization of non-reactive slag system.At the same time, it was found that the maximum heat flux, average heat flux density and characteristic time of non-reactive mold flux decreased with increasing Li 2 O content in the range of 2% ~ 5%.