Moulding Sand with Inorganic Cordis Binder for Ablation Casting

• Autorzy: Hosadyna-Kondracka M. , Major-Gabryś K. , Kamińska J. , Grabarczyk A. , Angrecki M.

Identyfikatory

DOI

10.24425/afe.2018.125178

• Języki publikacji: EN

Abstrakty

EN

The essence of ablation casting technology consists in pouring castings in single-use moulds made from the mixture of sand and a water-soluble binder. After pouring the mould with liquid metal, while the casting is still solidifying, the mould destruction (washing out, erosion) takes place using a stream of cooling medium, which in this case is water. This paper focuses on the selection of moulding sands with hydrated sodium silicate for moulds used in the ablation casting. The research is based on the use of Cordis binder produced by the Hüttenes-Albertus Company. It is a new-generation inorganic binder based on hydrated sodium silicate. Its hardening takes place under the effect of high temperature. As part of the research, loose moulding mixtures based on the silica sand with different content of Cordis binder and special Anorgit additive were prepared. The reference material was sand mixture without the additive. The review of literature data and the results of own studies have shown that moulding sand with hydrated sodium silicate hardened by dehydration is characterized by sufficient strength properties to be used in the ablation casting process. Additionally, at the Foundry Research Institute in Krakow, preliminary semi-industrial tests were carried out on the use of Cordis sand technology in the manufacture of moulds for ablation casting. The possibility to use these sand mixtures has been confirmed in terms of both casting surface quality and sand reclamation.

Słowa kluczowe

EN

innovative foundry technology; innovative foundry material; ablation casting; moulding sand; inorganic binder; thermal curing

PL

innowacyjna technologia odlewnicza; innowacyjny materiał odlewniczy; odlewanie ablacyjne; masa formierska; spoiwo nieorganiczne; utwardzanie termiczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 4
• Strony: 110--115
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Hosadyna-Kondracka M.

• Foundry Research Institute, Zakopiańska 73, 30-418 Krakow, Poland

autor

Major-Gabryś K.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Casting of Non-Ferrous Metals, Mickiewicza 30, 30-059 Krakow, Poland

autor

Kamińska J.

• Foundry Research Institute, Zakopiańska 73, 30-418 Krakow, Poland

autor

Grabarczyk A.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Casting of Non-Ferrous Metals, Mickiewicza 30, 30-059 Krakow, Poland

autor

Angrecki M.

• Foundry Research Institute, Zakopiańska 73, 30-418 Krakow, Poland

Bibliografia

• [1] Derui, T., Haiping, L. (2011). The ancient Chinese casting techniques. Retrieved September 12, 2017, from www.foundryworld.com/uploadfile/201131449329893.pdf.
• [2] Grassi, J.R., Campbell, J. (2008). U.S. Patent No. 20080041499 A1.
• [3] Weiss, D., Grassi, J., Schultz, B., Rohatgi, P. (2011). Ablation of Hybrid Metal Matrix Composites. AFS Proceedings, Paper 11-057.pdf, 1-7. American Foundry Society.
• [4] Grassi, J., Campbell, J., Hartlieb, M. & Major, F. (2009). The Ablation Casting Process. Materials Science Forum. Vols. 618-619, 591-594. DOI:10.4028/www.scientific.net /MSF.618-619.591.
• [5] Weiss, D., Grassi, J., Schultz, B., Rohatgi, P. (2012). Discovering Ablation. Metal Casting Design & Purchasing, 36-39.
• [6] Weiss, D., Grassi, J., Schultz, B. & Rohatgi, P. (2011). Testing the Limits of Ablation. Modern Casting. 101(12), 26-29.
• [7] Dudek, P., Fajkiel, A., Reguła, T. & Bochenek, J. (2014). Research on ablation casting technology for aluminium alloys. Transactions of Foundry Research Institute. 2, 23-35.
• [8] Lewandowski, J.L. (1997). Materials for foundry moulds. WN AKAPIT. (in Polish).
• [9] Dobosz, St.M. (2006). Water in moulding and core sands. WN AKAPIT. (in Polish).
• [10] Major-Gabryś, K. (2016). Environmentally friendly foundry moulding and core sands. Katowice-Gliwice: Archives of Foundry Engineering. (in Polish).
• [11] Dobosz St.M. (2010). PL Patent No. 206691 B1.
• [12] Major-Gabryś, K., Dobosz, St.M., Jakubski, J., Stachowicz, M. & Nowak, D. (2012). The influence of Glassex additive on properties of microwave-hardened and self-hardened moulding sands with water glass. Archives of Foundry Engineering. 12(1), 130-134.
• [13] Stachowicz, M., Granat, K. & Nowak, D. (2011). Influence of \alfa-Al2O3 on residual strength of microwave-hardened moulding sands with water-glass. Archives of Foundry Engineering. 11(2), 203-208. (in Polish).
• [14] Baliński, A. (2000). Chosen issues of the technology of moulding sands with inorganic binders. Structure of the hydrate silicate sodium and its influence on moulding sands combining. Foundry Research Institute Publishing Company, Kraków. (In Polish).
• [15] Różycka, D., Stechman, M., Wilkosz, B., Baliński A. (2000). The water glass as a binder in the foundry. P.II. Structure, Chemist. 53(8), 21. (in Polish).
• [16] Hüttenes-Albertus Poland. (2016). The characteristics card for Cordis.
• [17] Hüttenes-Albertus Poland (2016). The characteristics card for Anorgit.
• [18] Dudek, P., Fajkiel, A., Saja, K., Reguła, T., Bochenek, J. (2013). PL Patent No. 222130 B1.
• [19] Izdebska-Szanda, I., Kamińska, J., Angrecki, M., Palma, A. & Madej, W. (2016). An innovative method for the dehydration hardening of modified inorganic binders. Archives of Metallurgy and Materials. 61(4), 2097-2102.

Uwagi

PL

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