Effects of Casting Flux Interaction with Steel Melt on Lubrication in CC Moulds

Article Preview

Abstract:

Lubrication in CC moulds controls the shear forces to the sensible strand surface. Since that friction forces are depending on casting speed and the flux behaviour, a study on lubrication have experimentally been carried out when the slag is in contact with liquid steel. Particularly, higher amounts of aluminium in the steel as for pure de-oxidation lead to remarkable redox-reactions and to modified casting slags for the gap between strand and mould. Friction coefficients have been determined and applied to several strand shapes and castings velocities.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Pages:

3628-3633

Citation:

Online since:

January 2010

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Macias, E.A.; Castillejos, H.E.; Acosta, A. G; Herrera, M.G.; Neumann, F.: Modelling molten flux layer thickness profiles in compact strip process moulds for continuous strip casting, Ironmaking and Steelmaking, Vol. 29, (2002) 5, pp.347-359.

DOI: 10.1179/030192302225004557

Google Scholar

[2] Wolf. M, Mould powder consumption - a useful criterion?, Proc. 2 nd Europ. CC Conf., Vol. 1 Verlag Stahleisen, Düsseldorf, 1994, pp.78-85.

Google Scholar

[3] Riboud, P., Eigenschaften und Aufgaben von Stranggießschlacken, in: Metallurgie des Stranggießens, Verlag Stahleisen, Düsseldorf 1992, Kap. 3. 2, pp.233-256.

Google Scholar

[4] Sridhar, S.; Mills. K.C.; Afrange, O.D. C; Lörz, H.P.; Carli, R.: Break temperature of mould fluxes and their relevance to continuous casting; Ironmaking and Steelmaking 27 (2000) 3; pp.468-473.

DOI: 10.1179/030192300677534

Google Scholar

[5] Koyama, K.; Nagano, Y.; Nagano, K.; Nakano, T.: Nippon Steel Tech. Rep., (1987) 34, pp.41-47.

Google Scholar

[6] Heller, H. -P.; Fenzke, H. -W., Zur Schmierwirkung von Gießpulverschlacken beim Strang- gießen, Neue Hütte, Heft 1/1988, pp.9-14.

Google Scholar

[7] Hering, L.; Seher, B.; Fenzke, H. -W., Zur Wirkung des Gießpulvers beim Brammenstranggießen, Neue Hütte, 37. Jahrgang, Heft 9/92, S. 339-343.

Google Scholar

[8] Yao, M.; Fang, D.C.; On line measuring method for mould friction in continuous casting, Ironmaking and Steelmaking Vol. 23., (1996) 6, pp.522-527.

Google Scholar

[9] Royzman, S.E., Coefficient of friction between strand and mould during continuous casting: mathematical model, Ironmaking and Steelmaking Vol. 24., (1997) 6, pp.484-488.

Google Scholar

[10] Hamadou, H.: Makro- und Mikromodellierung der Strukturentwicklung beim Stranggießen von Stahl, Dr. -Ing. Thesis, IEHK at RWTH Aachen University2006.

Google Scholar

[11] Tipler, P.A., Physik für Wissenschaftler und Ingenieure, Spektrum Akad. Verlag, (2004).

Google Scholar

[12] Mills, K. C; Fox, A.B.; Thackray, R.P., Li, Z.; The Performance and Properties of Mould Fluxes; Ironmaking and Steelmaking 32 (2005) 1, pp.26-34.

DOI: 10.1179/174328105x15788

Google Scholar

[13] Münch, A., Untersuchungen zur Veränderung der Eigenschaften und Wirkungen von Gießpulvern durch kinetische Vorgänge in der Gießschlacke, Dr. -Ing. Thesis, IEHK at RWTH Aachen University, (2008).

Google Scholar