The Tendency of Moulding Sands to Generate Core Cracks

• Autorzy: Grabarczyk A. , Dobosz S. M. , Kusiński J. , Major-Gabryś K.

Identyfikatory

DOI

10.24425/118830

• Języki publikacji: EN

Abstrakty

EN

The constant growth of foundry modernization, mechanization and automation is followed with growing requirements for the quality and parameters of both moulding and core sands. Due to this changes it is necessary to widen the requirements for the parameters used for their quality evaluation by widening the testing of the moulding and core sands with the measurement of their resistance to mechanical deformation (further called elasticity). Following article covers measurements of this parameter in chosen moulding and core sands with different types of binders. It focuses on the differences in elasticity, bending strength and type of bond destruction (adhesive/cohesive) between different mixtures, and its connection to the applied bonding agent. Moulding and cores sands on which the most focus is placed on are primarily the self-hardening moulding sands with organic and inorganic binders, belonging to the group of universal applications (used as both moulding and core sands) and mixtures used in cold-box technology.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; moulding sand; binder; elasticity; cracking

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; masa formierska; spoiwo

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 157--161
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Grabarczyk A.

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

autor

Dobosz S. M.

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

autor

Kusiński J.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Kraków

autor

Major-Gabryś K.

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

Bibliografia

• [1] Gröning, P., Serghini, A. (2012). New cold-box systems and additives for serial production of castings. In III Conference „Moulding and core materials – theory and practice”, 20–22.05.2012 (41-52). Zakopane. Hüttenes-Albertus Poland.
• [2] Gröning, P., Schreckenberg, S. & Jenrich, K. (2015). Herstellung von hoch-komplexen Zylinderkurbel-gehäusen. Giesserei. 102 (01), 42-47.
• [3] Zych, J. (2013). Bench life (work time) of moulding and core sands with chemical binders –a new, ultrasound investigation method. Archives of Foundry Engineering. 13(4), 117-122. DOI 10.2478/afe-2013-0094.
• [4] Zych, J. (2007). Behaviour of moulding sands with hydrophilic binders in dry air. Archives of Foundry Engineering. 7(4), 189-192.
• [5] Głuch, S. (2016). The influence of hardening parameters on deformation of cores during resistance measurement on chosen moulding sands in cold-box technology. Engineering thesis (in Polish), AGH, Kraków, Poland.
• [6] Huttenes-Albertus Polska Sp. z o. o. Products. Retrieved June 07, 2017, from http://www.huettenes-albertus.pl.
• [7] Prec-Odlew Sp. z o. o. Product cards. Retrieved June 06, 2017, from http://odlew.com.pl/offer?lang=en.
• [8] Riande, E., Diaz-Calleja, R., Prolongo, M., Masegosa & Salom, C. (1999). Polymer Viscoelasticity: Stress and Strain in Practice. USA – New York: CRC Press. 199-394.
• [9] Sperling, L.H. (1992). Introduction to physical polymer science. USA - New York: Wiley & Sons.
• [10] Dobosz, St.M., Grabarczyk, A., Major-Gabryś, K., & Bolibruchova. D. (2017). Elasticity of cores manufactured in cold box technology. Archives of Metallurgy and Materials. 62(1), 351-354.
• [11] Dobosz, St.M., Grabarczyk, A., Major-Gabryś, K. & Morek, J. (2016). Quality assessment of the moulding mixtures from the elasticity point of view. Technológ. 8 (2), 19-23.
• [12] Dobosz, St.M. (1990). Thermal activation of quartz sands.. Scientific Writing AGH "Metallurgy and Casting" nr 134, Kraków. (in Polish).

Uwagi

PL

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