含钛碳质复合耐火材料与渣铁润湿性的研究

WETTABILITY BETWEEN TiN, TiC CONTAINING CARBON COMPOSITE REFRACTORY AND MOLTEN SLAG OR HOT METAL

为提高高炉炉缸寿命、探索研制新型复合耐火材料的可行性,测定了渣铁与这种料材的润湿性,结果表明,当碳质材料中(TiC+TiN)>33.5％时就会被炉渣润湿(θ≤90°);TiN,TiC对润湿的影响效果是一致的;当碳质复合材料中TiC>60％时将会被铁水润湿,所以只要控制TiC量,都能获得易被炉渣润湿而不易被铁水渗透的碳质复合耐火材料。

In order to develop new-type TiC-TiN containing carbon composite refractory so as to improve the service life of blast furnace hearth, the wettability between the carbon refractory and molten slag or metal has been measured. I; was indicated that the carbon refractory is wetted by slag (θ<90°) when(TiC+TiN)>33.52%. The effects of TIN or TiC on wetting behavior are basically identical. When the amount of TiC in the carbon composite refractory is greater than 60%, it will be wetted by hot metal; therefore, the carbon composite refractory will be wetted by slag but not permeated by hot metal when the amount of TiC is restricted.