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A Novel Model to Design the Equilibrium Slag Compositions for Bearing Steel: Verification and Application

机译：设计轴承钢均衡炉渣组合物的新型模型：验证与应用

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摘要

A new equilibrium calculation model for the slag composition design of bearing steel is established through the combination between IMCT and FactSage software. With this model, the equilibrium slag could be obtained quantitatively when the initial compositions of steel were given. It is validated by the comparison of predictive results with experimental data with different slag system, reflecting the reliability of the model. After that, the effects of Al in steel as well as CaO, MgO and Al_2O_3 in slag on the dissolved oxygen, magnesium and calcium were discussed in detail. Furthermore, Industrial trials with five different slags was carried out in a special steel plant in China. Results show a good correlation between the calculated contents in molten steel after LF refining and number density of oxide inclusions in final steel, which means this model have a good guidance for the production of high clean bearing steel.
机译：通过IMCT和Factsage软件的组合建立了轴承钢的炉渣组合物设计的新平衡计算模型。 利用该模型，当给出钢的初始组成时，可以定量地获得平衡渣。 通过对具有不同渣系统的实验数据的预测结果进行预测结果来验证，反映了模型的可靠性。 之后，详细讨论了溶解氧，镁和钙的炉渣中Al在钢中的施用和CaO，MgO和Al_2O_3的影响。 此外，在中国的特殊钢铁厂进行了具有五种不同炉渣的工业试验。 结果表明，在最终钢中的LF精炼和氧化物夹杂物的氧化物夹杂物中的钢水中计算的内容物之间的良好相关性，这意味着该模型对高清洁轴承钢的生产具有良好的指导。

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  • 来源
    《ISIJ international》 |2021年第5期|1514-1523|共10页
  • 作者

    Yunpeng WANG; Guoguang CHENG; Shijian LI; Weixing DAI; Dajun SHANG; Chunguang LU;

  • 作者单位

    State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing 30 Xueyuan Road Haidian District Beijing 100083 P. R. China;

    State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing 30 Xueyuan Road Haidian District Beijing 100083 P. R. China;

    State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing 30 Xueyuan Road Haidian District Beijing 100083 P. R. China;

    State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing 30 Xueyuan Road Haidian District Beijing 100083 P. R. China;

    Research and Development Department Xining Special Steel Co. Ltd. Xining Qinghai 810005 China;

    Research and Development Department Xining Special Steel Co. Ltd. Xining Qinghai 810005 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    thermodynamic model; bearing steel; slag design; equilibrium slag;

    机译：热力学模型;轴承钢;渣设计;均衡渣;

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