Research on the Energy of Destruction of Bindings of a Core and Moulding Sand Based on Quartz Sand Grains

• Autorzy: Dańko R. , Dajczer G.

Identyfikatory

DOI

10.24425/118805

• Języki publikacji: EN

Abstrakty

EN

In the knock-out process, as well as in the preliminary phase of moulding sand reclamation, the issue of energy demand for the process of crushing used sand agglutinations, preferably to single grains, is particularly important. At present, numerical values of moulding sand impact resistance, which would allow energy-related aspects of this process to be forecast, are not known, as such research has not been carried out. It seems that impact resistance tested on very small cross-section samples, which allows us to very precisely reveal some unique features of a moulding sand with organic and inorganic binders, is an important parameter, which so far has not been taken into account for evaluation of mechanical properties of moulding sands. Preliminary attempts to determine impact resistance of moulding sands have been carried out as part of own research of the author. The conducted investigations aimed at determining the relationships between the obtained values of tensile strength and impact resistance of moulding sands. In addition, the effect of holding samples at temperatures of 100^oC, 200^oC, 300^oC on the value of impact resistance was determined, both for sands made with fresh and with reclaimed sand grains.

Słowa kluczowe

EN

moulding sand; deformation energy; impact resistance; tensile strength

PL

masa formierska; odkształcenia; odporność na uderzenia; wytrzymałość na rozciąganie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 19--22
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab., wykr.

Twórcy

autor

Dańko R.

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

autor

Dajczer G.

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

Bibliografia

• [1] Brach, I. (1968). Crushing of fragile bodies. Przegląd Mechaniczny. 27(15), 15-25. (in Polish).
• [2] King, R.P. & Bourgeois, F. (1993). Measurement of fracture energy during single particle fracture. Mineral Engineering. 6, 353-367.
• [3] Hutera B. (2009). Boundary cases of matrix-bonded bonding in molding blocks. Archiwum Technologii Maszyn i Automatyzacji. 29(1), 21-28. (in Polish).
• [4] Leidel, D.S. (1994). The influence of sand and binders on reclaimability. Foundry Trade Journal. 3497(168), 384-387.
• [5] Dańko, R. (2007). Development of energetic model for dry mechanical reclamation process of used foundry sands. British Cast Iron Research Association. 20(4), 228-232.
• [6] Jakubski, J., Malinowski, P., Dobosz, S. (2013). ANN modeling for analysing green moulding sand properties. Archives of Metallurgy and Materials. 58(3), 961-963.
• [7] Grabowska, B., Malinowski P., Szucki, M. (2016). Thermal analysis in foundry technology. Journal of Thermal Analysis and Calorymetry. 126(1), 245-250.
• [8] Łucarz, M. (2015). Thermal reclamation of the used moulding sands. Metalurgija. 54(1), 109-112.
• [9] Lewandowski, L. (1991). Materials for foundry moulds. Akapit Publishing House.
• [10] Dańko, R. (2012). Strength model of self-setting moulding sands with synthetic resins in an aspect of the of the integrated matrix recycling process. Gliwice. Archives of Foundry Engineering Publishing House, 193 pages. (in Polish).

Uwagi

PL

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