MgO对含钛烧结矿矿相结构的影响

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Influence of MgO on Structure of Vanadium-titanium Sinter

1. College of Light Industry, Hebei United University, Tangshan 063000, Hebei, China;
2. College of Mining Engineering, Hebei United University, Tangshan 063009, Hebei, China;
3. Mining Development and Safety Technology Key Lab of Hebei Province, Tangshan 063009, Hebei, China;
4. Qian'an College, Hebei United University, Qian'an 064400, Hebei, China

摘要: 采用光学显微镜对承钢不同MgO含量的含钛烧结矿矿物组成及显微结构进行了系统研究。结果表明,随MgO配加量的增加,烧结矿结构由熔蚀结构过渡到粒状结构;金属相含量升高,而黏结相含量降低;烧结矿转鼓指数有所降低,低温还原粉化性能有所改善。建议承钢烧结原料中MgO配加量控制在2.0%左右。
- 含钛烧结矿 /
- MgO /
- 显微结构 /
- 矿物组成 /
- 强度 /
- 低温还原粉化性能
Abstract: The composition and microstructure of vanadium-titanium sinters with different MgO contents were determined by means of polarization microscope.The result shows that,as MgO content increased,the microstructure transferred from melting corrosion to granular structure.Meanwhile,he content of metal phase increased and the content of binder phase decreased.The tumbler strength of sinter decreased,and RDI of sinter improved.The content of MgO in sinter raw material of Chengde Iron&Steel Corporation is proposed at around 2.0%.
- vanadium-titanium sinter /
- MgO /
- microstructure /
- composition /
- strength /
- RDI