Influence of the Al₂O₃ Solid Phase on the Kinetics of Binding Ceramic Moulds

• Autorzy: Kolczyk J. , Zych J. , Jamrozowicz Ł.

Identyfikatory

DOI

10.1515/afe-2017-0136

• Języki publikacji: EN

Abstrakty

EN

The investigation results of the kinetics of binding ceramic moulds, in dependence on the solid phase content in the liquid ceramic slurries being 67, 68 and 69% - respectively, made on the basis of the aqueous binding agents Ludox AM and SK. The ultrasonic method was used for assessing the kinetics of strengthening of the multilayer ceramic mould. Due to this method, it is possible to determine the ceramic mould strength at individual stages of its production. Currently self-supporting moulds, which must have the relevant strength during pouring with liquid metal, are mainly produced. A few various factors influence this mould strength. One of them is the ceramic slurry viscosity, which influences a thickness of individual layers deposited on the wax model in the investment casting technology. Depositing of layers causes increasing the total mould thickness. Therefore, it is important to determine the drying time of each deposited layer in order to prevent the mould cracking due to insufficient drying of layers and thus the weakening of the multilayer mould structure.

Słowa kluczowe

EN

innovative foundry technology; innovative foundry material; investment casting technology; ultrasonic test; ceramic mould; aqueous binder

PL

innowacyjna technologia odlewnicza; innowacyjny materiał odlewniczy; technologia wytapianych modeli; pomiar ultradźwiękowy; forma ceramiczna; spoiwo wodniste

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 4
• Strony: 91--96
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Kolczyk J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Cast Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Zych J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Cast Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Jamrozowicz Ł.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Cast Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

• [1] Allendorf, A. (1960). Using Precision Foundry Melted Models. Warsaw: PWT. (in Polish).
• [2] Haratym, R., Biernacki, R., Myszka, D. (2008). Ecological investment casting in ceramic dies. Warsaw: Warsaw University of Technology, Publishing House. (in Polish).
• [3] Haratym, R. (2005). Anisotropy of properties of ceramic molds in aspect of accuracy of castings made in the counter-pressure process. Archives of Foundry. 15, 115-120. DOI: 10.151515.
• [4] Matysiak, H., Haratym, R. & Kurzydłowski, K.J. (2008). Evaluation of properties of multilayer ceramic moulds in the aspect of environmental protection. Archives of Foundry Engineering. 8(2), 27-30.
• [5] Zych, J. & Kolczyk, J. (2013). Kinetics of hardening and drying of ceramic moulds with the new generation binder – colloidal silica. Archives of Foundry Engineering. 13(4), 112-116. DOI: 10.2478/afe.
• [6] Filipczyński, L., Pawłowski, Z., Wehr, J. (1963). Ultrasonic testing methods of materials. Warsaw: WNT.
• [7] Show, A.D. (2002). Condition monitoring using ultrasound. Foundry Trade Journal 11, 24.
• [8] Mikulczyński, T., Bogdanowicz, J., Dworzak Ł. & Ganczarek M. (2006). Valuation of active binder content in moulding sand by means of ultrasonic method. Archives of Foundry. 6(20), 59-64. DOI: 10.151515. (in Polish).
• [9] Mikulczyński, T., Ganczarek, M., Ciskowski, S. & Dworzak, Ł. (2006). New method for determining the content of active binders in the molding mass. Archives of Foundry. 10-11, 574-577. DOI: 10.151515.
• [10] Zych, J. (2006). PL 192202 B1. Cracow. Patent Office of the Republic of Poland.
• [11] Zych, J. (2003). Investigations by the nondestructive method of the setting process of the quick setting moulding sands purged with gases. Archives of Foundry. 3(10), 297-306. DOI: 10.151515.
• [12] Zych, J., Matysiak, H. & Michalski, J. (2009). Kinetics of hardening of ceramic layers applied in the investment patterns method. Archives of Foundry Engineering. 9(2), 151-154. DOI: 10.2478/afe.

Uwagi

PL

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