| 低氟烧结矿微气孔的形成机理及对烧结矿强度的影响 |
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| 引用本文： | 乔瑞庆,杜鹤桂.低氟烧结矿微气孔的形成机理及对烧结矿强度的影响[J].钢铁研究学报,1999,11(6):1-4. |
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| 作者姓名： | 乔瑞庆 杜鹤桂 |
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| 作者单位： | 沈阳工业大学材料科学与工程系!沈阳1100232(乔瑞庆)，东北大学材料与冶金学院!沈阳110006(杜鹤桂) |
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| 摘 要： | 通过对低氟烧结矿显微结构的分析研究发现：微气孔直接控制着烧结矿裂纹的产生和扩展，并对烧结矿的强度有影响。低氟烧结矿中的微气孔是在铁酸钙（ＳＦＣＡ）结晶之后及玻璃体凝固之前形成的。低氟烧结矿中存在大量微气孔是由于其粘结相的熔点和结晶能力低造成的。因此提高低氟烧结矿粘结相的熔点及结晶能力是降低微气孔率、提高强度的根本途径。
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| 关 键 词： | 烧结矿 微气孔 形成机理 强度 |
Forming Mechanism of Pore in Sinter with Low Fluorine and Its Effect on the Sinter Strength |
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| Qiao Ruiqing,Du Hegui,Shenyang University of Technology Shenyang,Northeastern University Shenyang.Forming Mechanism of Pore in Sinter with Low Fluorine and Its Effect on the Sinter Strength[J].Journal of Iron and Steel Research,1999,11(6):1-4. |
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| Authors: | Qiao Ruiqing Du Hegui Shenyang University of Technology Shenyang Northeastern University Shenyang |
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| Affiliation: | Qiao Ruiqing 1) Du Hegui 2) 1) Shenyang University of Technology Shenyang 110023 2) Northeastern University Shenyang 110006 |
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| Abstract: | The study on the microstructure of the sinter with low fluorine shows that there is a strong relation among the pores in the sinter, the forming and extension of cracks and the sinter strength. The pores form between SFCA crystallization and glass solidification. There are many pores in the sinter, which is attributed to low melting point and crystallization capacity of the binding phase. The basic way to decrease the pore number and improve the strength of the sinter with low fluorine is increasing the melting point and crystallization capacity of the binding phase. |
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| Keywords: | sinter pore forming mechanism strength |
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