In Situ Observation of Collision between Exogenous and Endogenous Inclusions on Steel Melts for Active Steel Filtration
- 676 Downloads
In a confocal scanning laser microscope, interactions between exogenous and endogenous inclusions on steel melts have been investigated. Higher capillary long-range attraction forces as well as higher acting lengths of the capillary forces between exogenous and endogenous particle pairs have been observed in comparison to endogenous inclusions pairs. The contribution of the roughness of the exogenous inclusions to the capillary attraction forces has been discussed and a surface filter design for a higher filtration efficiency of steel melts has been proposed.
KeywordsContact Angle Nonmetallic Inclusion Molten Steel Interparticle Distance Filtration Efficiency
This research was financially supported by the German Research Foundation (DFG) in frame of the Collaborative Research Center 920. Moreover, the authors would like to thank Dr. Undine Fischer for the posttreatment of the CSLM image sequences.
- 3.C.G. Aneziris, M. Emmel, and A. Stolle: Proceedings of the 36th International Conference and Exposition on Advanced Ceramics and Composites (ICACC), M. Halbig, S. Mathur, eds., The American Ceramic Society, Daytona Beach, FL, 2012. ISBN 978-1-118-49392-8.Google Scholar
- 4.K. Janiszewski and Z. Kudlinski: Proc. Met. 2006, pp. 1–9.Google Scholar
- 7.C.G. Aneziris, S. Dudczig, J. Hubalkova, M. Emmel, and G. Schmidt: Ceram. Int., in press.Google Scholar
- 8.H. Yin, H. Shibata, T. Emi, and M. Suzuki: ISIJ Int., 1997, vol. 37, pp. 939-45.Google Scholar
- 10.H. Yin, H. Shibata, T. Emi, and J.S. Kim: Proc. Int. Conf. High Temp. Cappilarity, 1997, pp. 380–88.Google Scholar
- 11.Y.J. Kang, B. Sahepkar, P.R. Scheller, K. Morita, and D. Sichen: Metall. Mater. Trans. B, vol. 42B, pp. 522–34.Google Scholar
- 12.B. Sahebkar, O. Volkova, and P.R. Scheller: Proc. ICS, 2008, pp. 440–44.Google Scholar
- 18.D.G. Lee and H.Y. Kim: Phys. Fluids, 2011, vol. 23, pp. 72104-1–9.Google Scholar