低硅烧结矿抗压强度的机理研究

钢铁, 2009, 44(8): 11-0.

低硅烧结矿抗压强度的机理研究

1.1. 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

1.1. Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072, China；2. Tangshan Iron and Steel Co., Ltd., Tangshan 063000, Hebei, China3. College of Metallurgy and Energy Resources, Hebei Polytechnic University, Tangshan 063009, Hebei, China

关键词：低硅烧结矿;抗压强度;分形维数

Mechanism Study of Intensity of Low Silicon Sinter

SI Xinguo , LU Xionggang , ZHAO Ermin , ZHANG Yuzhu , ZHANG Qingjun , LIU Limei

Keywords： low silicon sinter;intensity;fractal dimension

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；1300 ℃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；1300 ℃以下，分形维数和抗压强度随温度的提高而增加，1300 ℃以上，规律性不明显；定量表征了微型烧结温控是1300 ℃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 1300 ℃. The intensity is increased with the adding of fractal dimension on the either side of 1300 ℃. The fractal dimension and the intensity is increased with the adding of sintering temperature below 1300 ℃, but the regularity is not obvious above 1300 ℃. The mechanism of the temperature controlling of macro sintering experiment quantificationally(its value is 1300 ℃) is characterized.

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