Assessment of the Possibility of Using Reclaimed Materials for Making Cores by the Blowing Method

• Autorzy: Dańko R. , Dańko J. , Skrzyński M.

Identyfikatory

DOI

10.1515/afe-2017-0004

• Języki publikacji: EN

Abstrakty

EN

The cumulative results of investigations of the possibility of using the reclaimed materials after the mechanical, thermal or mechanical-thermal reclamation for making cores by means of the blowing method in the alkaline CO₂ technology, are presented in the paper. Three kinds of spent sands: with furfuryl resin, bentonite and alkaline phenolic resin, obtained from the foundry, were subjected to three kinds of reclamation: mechanical, thermal and combined mechanical-thermal, applying for this aim adequate experimental devices. The obtained reclaims were assessed with regard to the degree of the matrix liberation from the determined binding material. Reclaims of moulding sands with binders of the form of resin were assessed with regard to ignition loss values and pH reaction, while reclaims of moulding sands with bentonite with regard to the residual clay content and pH value. In all cases the results of the performed sieve analyses were estimated and the average characteristic diameter dl was determined. The reclaimed matrix was applied as a full substitute of the fresh high-silica sand in typical procedures of preparing core sands used for making shaped samples for bending strength investigations, Rgu.

Słowa kluczowe

EN

moulding sand; reclamation; environmental protection

PL

piasek formierski; regeneracja; ochrona środowiska

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 1
• Strony: 21--26
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Dańko R.

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

autor

Dańko J.

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

autor

Skrzyński M.

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

Bibliografia

• [1] Dańko, R. (2012). Strength model of self-setting moulding sands with synthetic resins in an aspect of the integrated matrix recycling process. Monography. ISBN 978-83- 929266-6-5. Archives of Foundry Engineering Publishing House, 193 pages.
• [2] Łucarz, M. (2013). Setting temperature for thermal reclamation of used moulding sands on the basis of thermal analysis. Metalurgija. 54(2), 319-322.
• [3] Łucarz, M. (2015). Thermal reclamation of the used moulding sands. Metalurgija. 54(1), 109-112.
• [4] Łucarz, M. (2015). Ecological aspects of the performed thermal reclamation. Archives of Metallurgy and Materials. 60(1), 329-333.
• [5] Chate, G.R., Bhat, R.P, & Chate, U.N. (2014). Process parameter settings for core shooter machine by taguchi approach. Procedia Materials Science. 5, 1976-1985.
• [6] Ni, C.J, Lu, G.C, Zhang, Q.D., Jing, T., Wu, T.J, Yang, L.L. & Wu, Q.F. (2016). Influence of core box vents distribution on flow dynamics of core shooting process based onexperiment and numerical simulation. China Foundry. 13(1), 22-26.
• [7] Wu, J., Cui, Y. & Li, W. (2002). Computer simulation of core-shooting process with two-phase flow. Int. J. Cast Metals Res. 15, 445-449.
• [8] Dańko, R. (2006). Theoretical and technical backgrounds of optimum choice of the dry reclamation process for used moulding sands. Unpublished doctoral dissertation, AGH Kraków, Poland.

Uwagi

PL

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