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首页> 外文会议>The 2nd International symposium on clean steel >Investigation on Variation of Inclusions and Total Oxygen in IF Steel After RH Deoxidization
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Investigation on Variation of Inclusions and Total Oxygen in IF Steel After RH Deoxidization

机译：RH脱氧IF钢中夹杂物和总氧变化的研究。

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摘要

The variational regulation of inclusions and total oxygen in the IF Molten Steel during the RH refining process after deoxidization was studied. The results show that the relationship between total oxygen content and time is in accord with the following equation, T.O=271.25e-1.53t+23.49, R2=0.9966.The inclusion analysis investigation during RH pure circulation process indicates that the main inclusion of the IF molten steel after 2 minutes from the beginning of deoxidization is cluster inclusions of pure Al2O3 system. After 6 minutes from the aluminum deoxidization, the quantity of inclusion decreases and the inclusion style changes into block inclusions of AI2O3 system with the size of 5um. In the other hand, some inclusions are of Al2O3-MgO. Complex inclusions of Al2O3-TiOx with the size of below 5μm, and the single particle or cluster complex inclusions with the typical square shape of Al2O3-TiN system are found after 3 minutes from titanium-ferrous alloy added. Then, the content of titanium of complex inclusions of Al2C?3-Ti0x decreases and the aluminum content rises along with the RH pure circulation time process. That means the inclusions of Al2O3-TiOx is not steady, and it trends to transfer into A12O3.
机译：研究了脱氧后RH精炼过程中IF钢液中夹杂物和总氧的变化规律。结果表明，总氧含量与时间的关系符合下式，TO = 271.25e-1.53​​t + 23.49，R2 = 0.9966.RH纯循环过程中的夹杂物分析表明从脱氧开始2分钟后的钢水是纯Al2O3系统的簇状夹杂物。铝脱氧6分钟后，夹杂物的数量减少，夹杂物的类型变为5um的AI2O3体系的块状夹杂物。另一方面，一些夹杂物是Al 2 O 3 -MgO。添加钛铁合金三分钟后，发现尺寸小于5μm的Al2O3-TiOx复合夹杂物和典型的正方形Al2O3-TiN体系单颗粒或簇状复合夹杂物。然后，随着RH纯循环时间过程，Al 2 C 3 -TiO 3 x的复杂夹杂物中的钛含量降低并且铝含量升高。这意味着Al2O3-TiOx的夹杂物不稳定，并且趋向于转移到Al2O3中。

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  • 来源
  • 会议地点 Shenyang(CN)
  • 作者

    SHU Hong-fu; LIU Liu; LIU Xue-hua; ZHANG Xiao-feng;

  • 作者单位

    Central Iron and Steel Research Institute, Beijing 100081, China Technology Centre of Maanshan Iron and Steel Co Ltd, Maanshan 243000, Anhui, China;

    Central Iron and Steel Research Institute, Beijing 100081, China;

    Technology Centre of Maanshan Iron and Steel Co Ltd, Maanshan 243000, Anhui, China;

    Technology Centre of Maanshan Iron and Steel Co Ltd, Maanshan 243000, Anhui, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 炼钢;
  • 关键词

    IF steel; inclusion; RH refining;

    机译：中频钢;包含RH精炼；;

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