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

• Autorzy: Petrus Ł. , Bulanowski A. , Kołakowski J. , Brzeżański M. , Urbanowicz M. , Sobieraj J. , Matuszkiewicz G. , Szwalbe L. , Janerka K.

Identyfikatory

DOI

10.24425/afe.2020.131290

• 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.

Słowa kluczowe

EN

gray cast iron; ductile cast iron; thermal analysis; DTA; cast iron properties; holding time; temperature; overheating temperature

PL

żeliwo szare; żeliwo sferoidalne; analiza termiczna; DTA; właściwości żeliwa; temperatura; temperatura przegrzania

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 1
• Strony: 105--110
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr.

Twórcy

autor

Petrus Ł.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Bulanowski A.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Kołakowski J.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Brzeżański M.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Urbanowicz M.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Sobieraj J.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Matuszkiewicz G.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Szwalbe L.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland

autor

Janerka K.

• “Śrem” Iron Foundry Sp. z o.o., Śrem, Poland
• 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).