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The Influence of Selected Melting Parameters on the Physical and Chemical Properties of Cast Iron

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper presents the problems related to smelting gray and ductile cast iron. Special attention is paid to the metallurgical quality of cast iron. It depends on the type of furnace, charge materials and the special combination of charge, overheating and holding temperature, melting time, modification and spheroidization method. The evaluation of metallurgical quality has been performed by using derivative-thermal analysis (DTA). During the smelting process and secondary metallurgy, the ITACA system was used allowing to obtain information on alloy characteristic temperatures (Tliquidus, TeMin, TeMax, Tsolidus), VPS value, recalescence value, IGQ coefficient, nucleation gauge, porosity etc. The results of investigations and calculations are displayed in the form of graphs and dependencies. It has been shown that the derivative-thermal analysis (DTA) is an effective complement of chemical analysis and it has been found that both the increase in temperature and metal holding time have a negative impact on the metallurgical quality of liquid metal. The metallurgical quality can be improved by using proper composition of charge materials and modifiers.
Rocznik
Strony
105--110
Opis fizyczny
Bibliogr. 19 poz., rys., wykr.
Twórcy
autor
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
autor
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
autor
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
autor
  • “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland , krzysztof.janerka@polsl.pl
  • Silesian University of Technology, Department of Foundry Engineering, Gliwice, Poland
Bibliografia
  • [1] Census of World Casting Production, A Modern Casting Staff Report (2018), Modren Casting, December from https://www.moderncasting.com/issues/december-2018.
  • [2] Stefanescu, D.M., Alonso, G., Larranaga, P., De la Fuente, E. & Suarez, R. (2016). On the crystallization of graphite from liquid irone - carbone - silicon melts. ActaMaterialia. 107, 102-126.
  • [3] Stefanescu, D.M., Alonso, G., Larranaga, P., De la Fuente, E. & Suarez, R. (2017). Reexamination of crystal growth theory of graphite in iron-carbon alloys. ActaMaterialia. 139, 109-121.
  • [4] Riposan, I., Uta, V., Stan, S., Chisamera, M., Firican, M., Naro, R., Williams, D. (2014). Inoculant enhancer to increase the potency of Ca-FeSi alloy in ductile iron produced from the low rare earth containing master alloy, (2014) 10th International Symposium on the Science and Processing of Cast Iron – SPCI10, Mar del Plata, November, 1-8.
  • [5] Guzik, E. (2001). Some selected problems concerning the processes of cast iron improvement. Archives of Foundry. 1M, 1-128. (in Polish).
  • [6] Ignaszak, Z., Popielarski, P., Hajkowski, J. & Codina, E. (2015). Methodology of Comparative Validation of Selected Foundry Simulation Codes. Archives of Foundry Engineering. 15(4), 37-44.
  • [7] Persson, P.E., Ignaszak, Z., Fransson, H., Kropotkin, V., Andersson, R. & Kump, A. (2019). Increasing Precision and Yield in Casting Production by Simulation of the Solidification Process Based on Realistic Material Data Evaluated from Thermal Analysis (Using the ATAS MetStar System). Archives of Foundry Engineering. 19(1), 117-126.
  • [8] Kopycinski, D., Dorula, J. (2016). Effective Inoculation of Grey Cast Iron, The Minerals, Metals & Materials Society, EPD Congress, 136-142.
  • [9] Janerka, K., Jezierski, J., Bartocha, D. & Szajnar, J. (2014). Analysis of the ductile iron production on the steel scrap base. International Journal of Cast Metals Research. 27(4), 230-234.
  • [10] Janerka, K., Kondracki, M., Jezierski, J., Szajnar, J. & Stawarz, M. (2014). Carburizer Effect on Cast Iron Solidification. Journal of Materials Engineering and Performance. 23, 2174-2181.
  • [11] Janerka, K., Pawlyta, M., Jezierski, J., Szajnar, J. & Bartocha, D. (2014). Carburiser properties transfer into the structure of melted cast iron. Journal of Materials Processing Technology. 214(4), 794-801.
  • [12] Seidu, S.O. Thermal Analysis of Preconditioned Ductile Cast Iron. International Journal of Current Engineering and Technology. 3(3), 813-818.
  • [13] Sangamel, B.B. & Shinde, V.D. (2013). The Effect of Inoculation on Microstructure and Mechanical Properties of Ductile Iron. Journal of Mechanical and Civil Engineering. 5(6), 17-23.
  • [14] http://www.proservicetech.it/itacax-thermal-analysis-final-iron-quality-control/.
  • [15] https://www.novacast.se/product/atas/.
  • [16] https://www.heraeus.com/en/hen/products_and_solutions_hen/foundry/thermal_analysis/thermal_analysis.html.
  • [17] Stefanescu, D.M. (2015). Thermal Analysis—Theory And Applications In Metalcasting. International Journal of Metalcasting. 9(1), 7-22.
  • [18] Chisamera, M., Riposan, J., Stan, S., Stefan, E. & Costache, G. (2015). Thermal analysis control of in-mould and ladle inoculated grey cast irons. China Foundry. 6(2), 145-151.
  • [19] Erturka, S.O., Kumruoglub, L.C. & Ozel, A. (2017). Determination of Feederless Casting Limits by Thermal Analysis in Cast Iron, Acta Physica Polonica A. 131(3), 370-373.
Uwagi
PL
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-51691754-ef40-4fdd-a155-397c8c4ac176
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