The Importance of TDA Thermal Analysis in an Automated Metallurgical Process

• Autorzy: Petrus Łukasz , Bulanowski Andrzej , Kołakowski Jakub , Sobieraj Jakub , Paruch Tomasz , Urbanowicz Mariusz , Brzeżański Mateusz , Burdzy Daniel , Zych Jerzy , Janerka Krzysztof

Identyfikatory

DOI

10.7494/jcme.2021.5.4.89

• Języki publikacji: EN

Abstrakty

EN

The article presents the results of research and work related to the implementation of the research and development project POIR.01.01.01-00-0120/17 co-financed by the EU, through the NCBR, entitled: Innovative technology using thermal analysis, TDA, of self-feeding manufacturing of high-quality cast iron to produce new generation, enhanced performance casts. In many foundries, thermal derivative analysis (TDA) is used in addition to chemical analysis to evaluate the physical and chemical properties of an alloy while it is still in the melting furnace or ladle and before it is poured into the mold. This fact makes it possible to improve the metallurgical quality of the alloy by introducing alloying additives, carburizers or modifiers into the furnace as part of the pre-modification or primary or secondary modification in the ladle or when pouring into molds. Foundry machinery (modifier dosing systems and spheroidizing station) is very important in these operations. Only the full synergy of modern equipment with modern technology ensures high quality and repeatability of the casting process. The article mainly discusses the obtained parameters of TDA analysis (with the use of the ITACA system) at different stages of melting and how to improve them by using modern and fully automated dosing systems (Itaca OptiDose, ItacaWire and ItacaStream). Special attention was paid to the minimum temperature of the eutectoid. The change of its value after the modification process, its influence on the quality of the melted metal, a very strong correlation with the number of nuclei and the number of graphite precipitations in the casts were shown.

Słowa kluczowe

EN

ductile iron; grey cast iron; thermal derivative analysis; melting automation; modification

PL

żeliwo sferoidalne; żeliwo szare; termiczna analiza pochodnych; automatyzacja topienia; modyfikacja

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: Journal of Casting & Materials Engineering
• Rocznik: 2021
• Tom: Vol. 5, no. 4
• Strony: 89--93
• Opis fizyczny: Bibliogr. 12 poz., fot., wykr.

Twórcy

autor

Petrus Łukasz

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Bulanowski Andrzej

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Kołakowski Jakub

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Sobieraj Jakub

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Paruch Tomasz

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Urbanowicz Mariusz

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Brzeżański Mateusz

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Burdzy Daniel

• PGO, Odlewnia Żeliwa Śrem Sp. z o.o., ul. S. Staszica 1, 63-100 Śrem

autor

Zych Jerzy

• AGH University of Science and Technology, Faculty of Foundry Engineering, 23 Reymonta St., 30-059 Krakow, Poland

autor

Janerka Krzysztof

• Department of Foundry Engineering, Silesian University of Technology, ul. Towarowa 7, 44-100 Gliwice

Bibliografia

• 1. Petrus Ł., Bulanowski A., Kołakowski J., Brzeżański M., Urbanowicz M., Sobieraj J., Matuszkiewicz G., Szwalbe L. & Janerka K. (2020). The influence of selected melting parameters on the physical and chemical properties of cast iron. Archives of Foundry Engineering, 20(1), 105–110.
• 2. ITACAX™ (2021). Final iron control. Retrieved from http://www.proservicetech.it/itacax-thermal-analysis-final-iron-quality-control/ [accessed 01.09.2021].
• 3. ATAS MetStar (2021). Product brochure. Retrieved from: https://www.novacast.se/product/atas/[accessed 01.09.2021].
• 4. 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, 20(1), 109–116.
• 5. Heraeus (2021). Thermal Analysis. Retrieved from https://www.heraeus.com/en/hen/products_and_solutions_hen/foundry/thermal_analysis/thermal_analysis.html [accessed 1.09.2021].
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• 7. Stefanescu D.M. (2015). Thermal Analysis – Theory and Applications in Metalcasting. International Journal of Metalcasting, 9(1), 7–22. Doi: https://doi.org/10.1007/BF03355598.
• 8. 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.
• 9. Pietrowski S. & Gumienny G. (2002). Metodyka przygotowania oceny jakości żeliwa sferoidalnego z zastosowaniem metody TDA [Methodology for the preparation of ductile iron quality assessment using the ATD method]. Archiwum Odlewnictwa, 2(6), 249–256.
• 10. Stawarz M. & Szajnar J. (2003). Ocena jakości żeliwa sferoidalnego metodą ATD [Assessment of ductile iron quality by TDA]. Archiwum Odlewnictwa, 3(10), 199–206.
• 11. Borse S.C. (2014). Review on Grey Cast Iron Inoculation. International Journal of Innovative Research in Science, Engineering and Technology, 3(4), 30–36.
• 12. Hartung C. & Logan R. (2021). What is an inoculant and what does it do? Retrieved from: https://www.abifa.org.br/wp-content/uploads/2019/10/19.09.2019-09H45-WHAT-IS-AN-INOCULANT-AND-WHAT-DOES-IT-DO.pdf [accessed 15.09.2021].

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)