东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (2): 225-228.DOI: -

• 论著 • 上一篇    下一篇

铁酸钙粘结相自身强度的研究

李光森;窦力威;尚策;沈峰满;   

  1. 东北大学材料与冶金学院;鞍钢股份有限公司炼铁总厂;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-02-15 发布日期:2013-06-22
  • 通讯作者: Li, G.-S.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50474014)

Study on self-strength of calcium ferrite binding phase in sinter

Li, Guang-Sen (1); Dou, Li-Wei (2); Shang, Ce (2); Shen, Feng-Man (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Iron-Making Plant, Angang Steel Company Limited, Anshan 114001, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-02-15 Published:2013-06-22
  • Contact: Li, G.-S.
  • About author:-
  • Supported by:
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摘要： 以烧结矿中的铁酸钙粘结相为研究对象,考察了粘结相自身的抗折、抗压强度随粘结相组成的变化规律.实验考察了不同n(CaO)∶n(Fe2O3)(摩尔比)以及MgO,SiO2和Al2O3含量对铁酸钙粘结相的抗折、抗压强度的影响规律.结果表明,n(CaO):n(Fe2O3)=1∶2时,粘结相的抗折、抗压强度最高,添加MgO使粘结相抗折、抗压强度下降,适量的SiO2(w(SiO2)<3%)能提高粘结相的抗折、抗压强度,但随Al2O3含量的增加,粘结相的抗折、抗压强度下降.

关键词: 烧结矿, 铁酸钙粘结相, 抗折强度, 抗压强度

Abstract: The self-strength of calcium ferrite binding phase in sinter and relationship between the fracture/compression strength and binding phase's composition were studied experimentally. Tested with the different mol ratios of CaO to Fe2O3 and the different contents of MgO, SiO2 and Al2O3, the fracture/compression strength of different binding phases was discussed. It is found that the highest fracture/compression strength is given when the ratio n(CaO):n(Fe2O3)=1:2, but the strength decreases when increasing MgO content. The appreciate content of SiO2 (<3wt%) will improve the strength of binding phase, while the strength of binding phase decreases with increasing Al2O3 content.

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