The influence of ceramic fibre on thermal expansion of moulding materials for investment casting technology

• Autorzy: Nadolski M. , Konopka Z. , Łągiewka M. , Zyska A.
• Języki publikacji: EN

Abstrakty

EN

The results of dilatometric measurements presented in the paper are a supplement to the investigations concerning broadening the composition of ceramic slurry intended for investment casting technology with ceramic fibre matrix. An applying of fibre material and a change of rheologic characteristics of ceramic slurry have impelled to develop the method of applying the material to the pattern sets. The technology of multi-layer spraying has been found to be the most favourable method. Partial replacing of the grain silica materials with aluminosilicate materials in the fibrous form has affected the magnitude of dimensional changes taking place during the heating process. In order to determine the magnitude of these changes, there have been prepared slurries of various fibre fraction in the matrix and their thermal expansion has been examined within the temperature range of 273-1273 K.

Słowa kluczowe

EN

investment casting technology; moulding materials; strengthening with fibre; slurry

PL

technologia odlewnicza; materiał formierski; wzmocnienie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 2
• Strony: 147--150
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Nadolski M.

autor

Konopka Z.

autor

Łągiewka M.

autor

Zyska A.

• Department of Foundry, Technical University of Częstochowa, ul. Armii Krajowej 19, 42-200 Częstochowa, Polska,

Bibliografia

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• [2] Nadolski M., Konopka Z., Łągiewka M., Zyska A.: The influence of aluminosilicate fibres in moulding material for investment casting technology. Archives of Foundry Engineering, Polish Academy of Science, The Katowice Branch Commission of Foundry Engineering, vol. 8, issue 1 (2008) 223-226.
• [3] Nadolski M., Konopka Z., Łągiewka M., Zyska A.: Mechanical properties of investment casting moulds reinforced with ceramic fibre. Archives of Foundry Engineering, Polish Academy of Science, The Katowice Branch Commission of Foundry Engineering, vol. 8, issue 4 (2008) 149-153.
• [4] Lewandowski L.: Materials for casting moulds, Ed. Akapit, Cracow (1997) (in Polish).
• [5] Shaw R. D., Duffey D. J.: Investment Casting, USPat. 6769475, Aug 3, 2004.
• [6] Nadolski., Konopka Z.: The investigation of properties of investment casting moulds reinforced with ceramic fibre, Archives of Foundry Engineering, Polish Academy of Science, The Katowice Branch Commission of Foundry Engineering, vol. 7, issue 4 (2007) 127-130.
• [7] Matzek C. H.: The Effect of Slurry Viscosity and Stucco Size on Shell Properties. REMET Corporation, Utica, New York (2000).
• [8] Guerra M. Jr.: Comparison of Properties Zircon/Alumino - Silicate Shells with Water - Based and Ethyl Silicate - Based Binders. REMET Corporation, Utica, New York (1998).
• [9] Niles J. C.: The Effect of Particle Size of Fused Silica Flour on Shell Properties. Investment Casting Institute, 45th Annual Technical Meeting (1997).