低硅烧结矿抗压强度的机理研究  

Mechanism Study of Intensity of Low Silicon Sinter

作　　者：司新国[1,2] 鲁雄刚[1] 赵二敏[2] 张玉柱[3] 张庆军[3] 刘丽妹[3] 

机构地区：[1]上海大学上海市现代冶金与材料制备重点实验室,上海200072 [2]唐山钢铁股份有限公司,河北唐山063000 [3]河北理工大学冶金与能源学院,河北唐山063009

出　　处：《钢铁》2009年第8期11-14,共4页Iron and Steel

基　　金：国家自然科学基金资助项目(No.50444019;50774052)

摘　　要：应用分形理论研究了低硅烧结矿的抗压强度。结果表明：应用分形理论来定量描述烧结矿的微观结构是切实可行的,其分形维数介于1.1-1.6之间;1 300℃是分形维数和抗压强度的极大值温度点,在温度两侧抗压强度均随分形维数的增加而提高;1 300℃以下,分形维数和抗压强度随温度的提高而增加,1 300℃以上,规律性不明显;定量表征了微型烧结温控是1 300℃的机理。The intensity of the low silicon sinter is studied by fractal theory.The results show that it is workable to character microstructure of sinter quantificationally,the value of fractal dimension is 1.1-1.6;The value of fractal dimension and intensity reach to the max when the temperature of the sintering is 1 300 ℃.The intensity is increased with the adding of fractal dimension on the either side of 1 300 ℃.The fractal dimension and the intensity is increased with the adding of sintering temperature below 1 300 ℃,but the regularity is not obvious above 1 300 ℃.The mechanism of the temperature controlling of macro sintering experiment quantificationally（its value is 1 300 ℃） is characterized.

关 键 词：低硅烧结矿 抗压强度 分形维数 

分 类 号：TF046.4[冶金工程—冶金物理化学]