论文部分内容阅读
During the cooling process of AOD(argon-oxygen decarburization)stainless steel slag,the serious disintegrating problem happened,which will cause serious environmental pollution.The disintegrating mechanism of the AOD slag was analyzed in detail,and experimental research on prevention of disintegrating of AOD stainless steel slag was developed by adjusting the basicity of the slag and adding the quartz sand and borax.The disintegrating problem during the cooling process of AOD stainless steel slag is caused by the 2CaO·SiO2phase transformation fromα’-C2S toγ-C2S.By means of adjusting the basicity of the AOD stainless steel slag from 2to 1.5by adding quartz sand,disintegrating of slag was prevented.But the adding amount must arrive at 15% which increases the difficulty of industrialization.Disintegration of AOD stainless steel slag can be effectively controlled by adding borax,and the adding amount is only 0.5%-0.8%.This method can be easily industrialized.
During the cooling process of AOD (argon-oxygen decarburization) stainless steel slag, the serious disintegrating problem happened, which will cause serious environmental pollution. The disintegrating mechanism of the AOD slag was analyzed in detail, and experimental research on prevention of disintegrating of AOD stainless steel slag was developed by adjusting the basicity of the slag and adding the quartz sand and borax. the disintegrating problem during the cooling process of AOD stainless steel slag is caused by the 2CaO · SiO2 phase transformation from α’-C2S to γ-C2S.By means of adjusting the basicity of the AOD stainless steel slag from 2to 1.5by adding quartz sand, disintegrating of slag was prevented.But the adding amount must arrive at 15% which increases the difficulty of industrialization. Disintegration of AOD stainless steel slag can be substantially controlled by adding borax, and the adding amount is only 0.5% -0.8%. This method can be easily industrialized.