Determination of Chromite Sands Suitability for Use in Moulding Sands

• Autorzy: Stec K. , Podwórny J. , Psiuk B. , Kozakiewicz Ł.

Identyfikatory

DOI

10.1515/afe-2017-0060

• Języki publikacji: EN

Abstrakty

EN

Using the available analytical methods, including the determination of chemical composition using wavelength-dispersive X-ray fluorescent spectroscopy technique and phase composition determined using X-ray diffraction, microstructural observations in a high-resolution scanning microscope equipped with an X-ray microanalysis system as well as determination of characteristic softening and sintering temperatures using high-temperature microscope, the properties of particular chromite sands were defined. For the study has been typed reference sand with chemical properties, physical and thermal, treated as standard, and the sands of the regeneration process and the grinding process. Using these kinds of sand in foundries resulted in the occurrence of the phenomenon of the molding mass sintering. Impurities were identified and causes of sintering of a moulding sand based on chromite sand were characterized. Next, research methods enabling a quick evaluation of chromite sand suitability for use in the preparation of moulding sands were selected.

Słowa kluczowe

EN

chromite sand; moulding sand; sintering

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 2
• Strony: 107--110
• Opis fizyczny: Bibliogr. 10 poz., il., tab., wykr.

Twórcy

autor

Stec K.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Poland

autor

Podwórny J.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Poland

autor

Psiuk B.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Poland

autor

Kozakiewicz Ł.

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

Bibliografia

• [1] Stec, K. (2008). Determining the content of chrome (VI) in raw materials and post-production waste. Ceramika (Ceramics). (102), 189-195. (in Polish).
• [2] Stec, K. (2005). Determination of chromium oxide in the ore and chrome refractory materials containing chromium oxide. Ceramika – Polski Biuletyn Ceramiczny (88), 223-22. (in Polish).
• [3] Furmanek, J. (2002). Installing the regeneration of molding and core. Archives of Foundry. 2(3), 42-49. (in Polish).
• [4] Dańko, J., Dańko, R., Łucarz, M. (2007). The processes and apparatuses for the regeneration of the matrix used molding sands. Kraków, Wydawnictwo Naukowe AKAPIT. (in Polish).
• [5] Dańko, J., Holtzer, M. & Dańko, R. (2007). Problems Concerning Reclamation of Used Foundry Sands. Polish Journal of Environmental Studies. 3B(16), 93-9.
• [6] Izdebska-Szanda, I., Angrecki, M. & Palma, A. (2013). Recycling of waste moulding sands with new binders. Archives of Foundry Engineering. 13(2), 43-48.
• [7] Holtzer, M., Drozyński, D., Bobrowski, A., Mazur, M. & Isendorf, B. (2010). The influence of reclaim on properties of moulding sand with furan resin. Archives of Foundry Engineering. 10(spec.2), 61-64. (in Polish).
• [8] Dańko, J., Dańko, R. & Holtzer, M. (2003). Reclamation of Used Sands in Foundry Production. Metallurgy. 42(3), 173-178.
• [9] Leidel, D. S. (1994): The influence of sand and binders on reclaimability. Foundry Trade Journal, 3497 (168), 384-387.
• [10] Fedoryszyn, A. (1996). The characteristics of grain basis for assessing the quality of the carcass sand moulding. Solidification of Metals and Alloys. 26, 231-238. (in Polish).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)