Influence of the Matrix Grain Size on the Apparent Density and Bending Strength of Sand Cores

• Autorzy: Dańko R.

Identyfikatory

DOI

10.1515/afe-2017-0005

• Języki publikacji: EN

Abstrakty

EN

The results of investigations of the influence of the matrix grain sizes on properties of cores made by the blowing method are presented in the hereby paper. Five kinds of matrices, differing in grain size compositions, determined by the laser diffraction method in the Analysette 22NanoTec device, were applied in investigations. Individual kinds of matrices were used for making core sands in the Cordis technology. From these sands the shaped elements, for determining the apparent density of compacted sands and their bending strength, were made by the blowing method. The shaped elements (cores) were made at shooting pressures being 3, 4 and 5 atn. The bending strength of samples were determined directly after their preparation and after the storing time of 1 hour.

Słowa kluczowe

EN

moulding sand; core sand; blowing method; inorganic binder; bending strength

PL

piasek formierski; piasek rdzeniowy; spoiwo nieorganiczne; wytrzymałość na zginanie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 1
• Strony: 27--30
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Dańko R.

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

Bibliografia

• [1] Lewandowski, L. (1991). Materials for foundry moulds. Akapit Publishing House. (in Polish).
• [2] 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. (in Polish).
• [3] Dańko, J. (1992). Process of production of moulds and cores by mean of blowing methods. Theory and tests. Series Dissertations and Monography. AGH Publishing House.
• [4] Dańko, J., Zych, J. & Dańko, R. (2009). Diagnostic methods of technological properties and casting cores quality. Archives of Metallurgy and Materials. 54(2), 381-392.
• [5] Zych, J. (2007). Synthesis of uses of ultrasonic technique in the analysis of the kinetics of selected processes in the foundry moulding materials. AGH Publishing House.
• [6] Analysette 22 NanoTec manual.
• [7] 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).