Issues »  Volume 36, Issue 2

Effect of Oxygen Activity on the Effectiveness of Nodulization in the Spheroidal Graphite Cast Iron Production

Iva Nová, Jiří Machuta

Technical University of Liberec, Studentská 1402/2, 46117 Liberec 1, Czech Republic

Received: 12.03.2013. Download: PDF

Production of castings with spheroidal graphite iron (SGI) requires the maintenance of metallurgical and technological principles. Oxygen plays an important role in this production. The influence of oxygen on cast iron has the most significant effect on oxygen bound in oxides. Under operating conditions, it is necessary to monitor the chemical composition and temperature of the melt together with other factors, which contribute to the effect of oxygen activity and effective modifications. Influence of an applied modifier (nodulizer) of oxygen activity on the production of spheroidal graphite cast iron is established.

Key words: spheroidal graphite, cast iron, nodulization, solubility, saturation, melt.

URL: http://mfint.imp.kiev.ua/en/abstract/v36/i02/0175.html

DOI: https://doi.org/10.15407/mfint.36.02.0175

PACS: 61.72.sd, 64.70.dg, 64.75.Bc, 81.05.Bx, 81.70.Jb, 82.80.Fk

Citation: Iva Nová and Jiří Machuta, Effect of Oxygen Activity on the Effectiveness of Nodulization in the Spheroidal Graphite Cast Iron Production, Metallofiz. Noveishie Tekhnol., 36, No. 2: 175—188 (2014)

REFERENCES
  1. T. Myslivec, Fyzikálně Chemické Základy Ocelářství (Physico-Chemical Principles of the Steel Industry) (Prague: SNTL: 1971) (in Czech).
  2. B. V. Linchevskiy, Termodinamika i Kinetika Vzaimodeystviya Gazov s Zhidkimi Metallami (Moscow: Metallurgiya: 1986) (in Russian).
  3. R. Hummer, Giesserei, No. 24: 884 (1991).
  4. R. Hummer, Adv. Mate. Res., 4–5: 269 (1997). Crossref
  5. T. Kusakawa, Memoirs of the School of Science and Engineering, Waseda University, 52: 163 (1988).
  6. J. Šenberger, Sborník 14 Celostátní Konference (Brno: 2000), s. 34.
  7. L. Konečný, J. Exner, and I. Nová, Aktivita Kyslíku u Grafitických Litin (Oxygen Activity of Graphite Cast Iron) (Final Report of Grant Project GAČR 106/95/ 171 TU v Liberci: 1998) (in Czech).
  8. I. Nová, J. Bradáč, M. Vrba, and J. Šmrha, Archives of Foundry Engineering, 6, No. 18: 15 (2006).
  9. L. Bříštala, Vliv Kyslíku v Litinách s Kuličkovým Grafitem na Homogenitu Odlitků (Influence of Oxygen Activity of Spheroidal Graphite Iron on Homogeneity Castings) (Thesis, KSM-FS, TU in Liberci: 2001) (in Czech).
  10. R. Knébl, Vliv Kyslíku v Grafitických Litinách na Homogenitu Odlitků (Influence of Oxygen in Graphite Moulds on Castings Homogeneity) (Thesis, KSM-FS, TU in Liberec: 2000) (in Czech).
  11. J. Machuta and I. Nová, Metallofiz. Noveishie Tekhnol., 34, No. 7: 977 (2012).

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