Method of Selecting the Reclamation Temperature of Spent Moulding Sands with Organic Binders

• Autorzy: Łucarz M.

Identyfikatory

DOI

10.24425/118813

• Języki publikacji: EN

Abstrakty

EN

The thermal reclamation process as a utilisation method of spent moulding and core sands is more costly than other reclamation methods, but in the majority of cases it simultaneously provides the best cleaning of mineral matrices from organic binders. Thus, the application of the thermal analysis methods (TG-DSC), by determining the temperature range within which a degradation followed by a destruction of bounded organic binders in moulding sands, can contribute to the optimisation of the thermal reclamation process and to the limiting its realisation costs. The thermal analysis results of furan resin, one of the most often applied binder in foundry practice, are presented in the hereby paper. The influence of the heating rate of the sample - placed in the thermal analyser - on its degradation and destruction process under oxygen-free (argon) and oxygen (air) conditions, were compared. The recorded TG and DSC curves were used for analysing these processes as the temperature as well as the time function. The obtained results were analysed with regard to determining the required temperature of the thermal reclamation of the investigated organic binder. The usefulness of the developed methodology was found out, however under conditions of meeting several essential requirements concerning the repeatability of performed analyses.

Słowa kluczowe

EN

spent moulding sand; thermal analysis; organic binders; thermal destruction; thermal reclamation; used molding sands

PL

zużyte masy formierskie; analiza termiczna; spoiwo organiczne; zniszczenie termiczne; regeneracja termiczna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 65--70
• Opis fizyczny: Bibliogr. 13 poz., wykr.

Twórcy

autor

Łucarz M.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Kraków, Poland

Bibliografia

• [1] Łucarz, M., Dereń, M. (2017). Conditions of thermal reclamation process realization on a sample of spent moulding sand from an aluminum alloy foundry plant. Archives o f Foundry Engineering. 17(2), 197-201. DOI: 10.1515/afe-2017-0074.
• [2] Dziewulska-Kułaczkowska, A. (2007). Application of thermal analysis methods for the examination of chemical compounds. Laboratorium. 7-8, 18-22. (in Polish).
• [3] Pielichowski, J. & Pielichowski, K. (1995). Application of thermal analysis for the investigation of polymer degradation processes. Journal of Thermal Analysis. 43, 505-508.
• [4] Janowska, G., Przygocki, W., Włochowicz, A. (2007). Flammability of polymers and polymeric materials. Warszawa: Wydawnictwo Naukowo-Techniczne. (in Polish).
• [5] Żymankowska-Kumon, S., Bobrowski, A. & Grabowska, B. (2016). Comparison of the emission of aromatic hydrocarbons from moulding sands with furfural resin with the low content of furfuryl alcohol and different activators, Archives of Foundry Engineering. 16(4), 187-190. DOI: 10.1515/afe-2016-0107.
• [6] Holtzer, M., Bobrowski, A., Dańko, R., Kmita, A., Kubecki, M., Żymankowska-Kumon, S. & Górny, M. (2014). Emission of polycyclic aromatic hydrocarbons (PAHs) and benzene, toluene, ethylbenzene and xylene (BTEX) from the furan moulding sands with addition of the reclaim. Metalurgija. 53(4), 451-454.
• [7] Kubecki, M., Holtzer, M. & Żymankowska, S. (2013). Investigations of the Temperature Influence on Formation of Compounds from the BTEX Group During the Thermal Decomposition of Furan Resin. Archives of Foundry Engineering. 13(2), 85-90. DOI: 10.2478/afe-2013-0042.
• [8] Grabowska, B., Szucki, M., Suchy, J.Sz., Eichholz, S. & Hodor, K. (2013). Thermal degradation behavior of cellulose-based material for gating systems in iron casting production. Polimery. 58(1), 39-44.
• [9] Łucarz, M. (2015). Setting temperature for thermal reclamation of used moulding sands on the basis of thermal analysis. Metalurgija. 54(2), 319-322.
• [10] Łucarz, M.; Grabowska, B.; Grabowski., G. (2014). Determination of parameters of the moulding sand reclamation process, on the thermal analysis base. Archives of Metallurgy and Materials. 59(3), 1023-1027. DOI: 10.2478/amm-2014-0171.
• [11] https://www.tainstruments.com/pdf/brochure/sdt.pdf
• [12] https://www.netzsch-thermal-analysis.com/pl/produkty-rozwiazania/jednoczesna-analiza-termiczna/sta-449-f3-jupiter/ (in Polish).
• [13] Wesołowski, M. (2007). Modern methods of thermal analysis. Basic concepts and definitions. Laboratorium. 3, 40-44. (in Polish).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)