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Volume 24 Issue 10
Oct.  2017
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文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(10): 1096-1103
Ying Xu, Zhi-peng Yuan, Li-guang Zhu, Yi-hua Han, and Xing-juan Wang, Shear-thinning behavior of the CaO-SiO2-CaF2-Si3N4 system mold flux and its practical application, Int. J. Miner. Metall. Mater., 24(2017), No. 10, pp. 1096-1103. https://doi.org/10.1007/s12613-017-1500-8
Cite this article as:
Ying Xu, Zhi-peng Yuan, Li-guang Zhu, Yi-hua Han, and Xing-juan Wang, Shear-thinning behavior of the CaO-SiO2-CaF2-Si3N4 system mold flux and its practical application, Int. J. Miner. Metall. Mater., 24(2017), No. 10, pp. 1096-1103. https://doi.org/10.1007/s12613-017-1500-8
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研究论文

Shear-thinning behavior of the CaO-SiO2-CaF2-Si3N4 system mold flux and its practical application

  • Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, College of Materials Science and Engineering, North China University of Science and Technology, Tangshan 063009, China

  • Key Laboratory for Advanced Metallurgy Technology, Hebei Provincial High-Quality Steel Continuous Casting Engineering Technology Research Center, College of Metallurgy & Energy, North China University of Science and Technology, Tangshan 063009, China

  • 通讯作者:

    Zhi-peng Yuan    E-mail: yuan_zhi_peng@126.com

  • Satisfying the mold-flux performance requirements for high-speed continuous casting necessitates the development of a new non-Newtonian-fluid mold flux with shear-thinning behavior, i.e., a mold flux whose viscosity is relatively high under lower shear rates and relatively low under higher shear rates. In this work, a mold flux that exhibits shear-thinning behavior was developed by adding different amounts of Si3N4 to the CaO-SiO2-CaF2 mold flux. The shear-thinning behavior was investigated using a rotational viscometer. In addition, the microstructure of the newly prepared slags was studied by high-temperature Raman spectroscopy and X-ray photoelectron spectroscopy. The results showed that the mechanism of shear-thinning was attributable to a temporary viscosity loss caused by the one-way shear stress, whereas the corresponding magnitude of shear-thinning was closely related to the degree of polymerization (DP). Finally, the non-Newtonian fluid mold flux was used for laboratory casting tests, which revealed that the mold flux could reduce slag entrapment and positively affect the continuous casting optimization.
    • Research Article

    Shear-thinning behavior of the CaO-SiO2-CaF2-Si3N4 system mold flux and its practical application

    + Author Affiliations
      Abstract
    • Satisfying the mold-flux performance requirements for high-speed continuous casting necessitates the development of a new non-Newtonian-fluid mold flux with shear-thinning behavior, i.e., a mold flux whose viscosity is relatively high under lower shear rates and relatively low under higher shear rates. In this work, a mold flux that exhibits shear-thinning behavior was developed by adding different amounts of Si3N4 to the CaO-SiO2-CaF2 mold flux. The shear-thinning behavior was investigated using a rotational viscometer. In addition, the microstructure of the newly prepared slags was studied by high-temperature Raman spectroscopy and X-ray photoelectron spectroscopy. The results showed that the mechanism of shear-thinning was attributable to a temporary viscosity loss caused by the one-way shear stress, whereas the corresponding magnitude of shear-thinning was closely related to the degree of polymerization (DP). Finally, the non-Newtonian fluid mold flux was used for laboratory casting tests, which revealed that the mold flux could reduce slag entrapment and positively affect the continuous casting optimization.
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    • [1]
      M. Suzuki, S. Miyahara, T. Kitagawa, S. Uchida, T. Mori, and K. Okimoto, Effect of mold oscillation curves on heat transfer and lubrication behaviour in mold at high speed continuous casting of steel slabs, Tetsu-to-Hagane, 78(2009), No. 1, p. 113.
      [2]
      K. Nakajima, S. Hiraki, M. Kawamoto, and T. Kanazawa, Melting, lubrication, and heat transfer behavior of mold powder in mold at high speed continuous casting of steel slabs, Sumitomo Met., 45(1993), No. 3, p. 8.
      [3]
      R. Saraswat, A.B. Fox, K.C. Mills, P.D. Lee, and B. Deo, The factors affecting powder consumption of mould fluxes, Scand. J. Metall., 33(2004), No. 2, p. 85.
      [4]
      S.H. Shin, D.W. Yoon, J.W. Cho, and S.H. Kim, Controlling shear thinning property of lime silica based mold flux system with borate additive at 1623 K, J. Non-Cryst. Solids, 425(2015), p. 83.
      [5]
      K. Watanabe, K. Tsutsumi, M. Suzuki, H. Fujita, S. Hatori, T. Suzuki, and T. Omoto, Development of new mold flux for continuous casting based on non-Newtonian fluid properties, ISIJ Int., 54(2014), No. 4, p. 865.
      [6]
      T. Kanazawa, S. Hiraki, M. Kawamoto, K. Nakai, K. Hanazaki, and T. Murakami, Behavior of lubrication and heat transfer in mold at high speed continuous casting, Tetsu-to-Hagane., 83(1997), No. 11, p. 701.
      [7]
      H. Nakato, S. Ōmiya, Y. Habu, T. Emi, K. Hamagami, and T. Koshikawa, Optimizing mold lubrication for high-speed continuous casting of slabs, JOM, 36(1984), No. 3, p. 44.
      [8]
      K. Watanabe, K. Tsutsumi, M. Suzuki, M. Nakada, and T. Shiomi, Effect of properties of mold powder entrapped into molten steel in a continuous casting process, ISIJ Int., 49(2009), No. 8, p. 1161.
      [9]
      K.C. Mills and A.B. Fox, The role of mould fluxes in continuous casting-so simple yet so complex, ISIJ Int., 43(2003), No. 10, p.1479.
      [10]
      S.H. Shin, J.W. Cho, and S.H. Kim, Shear thinning behavior of calcium silicate-based mold fluxes at 1623 K, J. Am. Ceram. Soc., 97(2014), No. 10, p. 3263.
      [11]
      S.H. Shin, J.W. Cho, and S.H. Kim, Controlling the shear thinning property of calcium silicate melts by addition of Si3N4, J. Non-Cryst. Solids, 423-424(2015), p. 45.
      [12]
      Y.R. He, Y.B. Men, X. Liu, H.L. Lu, H.S. Chen, and Y.L. Ding, Study on forced convective heat transfer of non-Newtonian nanofluids, J. Therm. Sci., 18(2009), No. 1, p. 20.
      [13]
      Y. Gu, R.Z. Liu, K. Wu, Y. Zhao, S.Q. Li, X. Gao, and G.J. Sun, A study on rheologic characteristics of mold fluxes for high speed continuous casting, Spec. Steel, 25(2004), No. 1, p. 18.
      [14]
      Y. Peng, B.H. Lv, J.L. Yuan, H.B. Ji, L. Sun, and C.C. Dong, Application and prospect of non-Newtonian fluid in the industrial field, Mater. Sci. Forum, 770(2014), p. 396.
      [15]
      H.Y. Liu, M.G. Pang, and J.J. Wei, A progress and trend of the non-Newtonian fluids, Appl. Chem. Ind., 39(2010), No. 5, p. 740.
      [16]
      K.Q. Zhu, Some advances in non-Newtonian fluid mechanics, Mech. Eng., 28(2006), No. 4, p. 1.
      [17]
      S.H. Shin, J.W. Cho, and S.H. Kim, Structural investigations of CaO-CaF2-SiO2-Si3N4 based glasses by Raman spectroscopy and XPS considering its application to continuous casting of steels, Mater. Des., 76(2015), p. 1.
      [18]
      E. Chiellini, M. Giordano, and D. Leporini, Structure and Transport Properties in Organized Polymeric Materials, World Scientific Publishing Company, Pisa, 1998, p. 348.
      [19]
      J. Swenson and L. Börjessonb, Intermediate-range structure and conductivity of fast ion-conducting borate glasses, J. Non-Cryst. Solids, 232-234(1998), p. 658.
      [20]
      A. Bachar, C. Mercier, A. Tricoteaux, A. Leriche, C. Follet, M. Saadi, and S. Hampshire, Effects of addition of nitrogen on bioglass properties and structure, J. Non-Cryst. Solids., 358(2012), No. 3, p. 693.
      [21]
      E. Dolekcekic, M.J. Pomerpocy, and S. Hampshire, Structural characterisation of Er-Si-Al-O-N glasses by Raman spectroscopy, J. Eur. Ceram. Soc., 27(2007), No. 2-3, p. 893.
      [22]
      J.H. Park, Structure-property relationship of CaO-MgO-SiO2 slag:quantitative analysis of Raman spectra, Metall. Mater. Trans. B, 44(2013), No. 4, p. 938.
      [23]
      J.H. Park, Effect of silicate structure on thermodynamic properties of calcium silicate melts:quantitative analysis of Raman spectra, Met. Mater. Int., 19(2013), No. 3, p. 577.
      [24]
      T. Das, Oxynitride glasses-An overview, Bull. Mater. Sci., 23(2000), No. 6, p. 499.
      [25]
      H.J. Yun, J. Lee, M.C. Jung, M.S. Han, K. Park, K.S. Ahn, and C.J. Choi, Chemical bonding structures of silicon oxynitride films grown by ionized N2 and pure O2 gas mixtures at low temperature, Adv. Appl. Ceram., 110(2011), No. 1, p. 25.
      [26]
      L.R. Rudnick, Lubricant Additives:Chemistry and Applications, 2nd Ed., Chemical Rubber Company (CRC) Press, Boca Raton, 2009, p. 56.
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