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Języki publikacji
Abstrakty
In the method of full mould the polystyrene model, which fills the mould cavity in the course of filling by the liquid metal is subjected to the influence of high temperature and passes from the solid, through the liquid, to the gaseous state. During this process solid and gaseous products of thermal decomposition of polystyrene patterns occur. The kinetics of this process is significantly influenced by the gasification temperature, density and mass of the polystyrene patterns. One of the basic parameters is the amount and rate of gas from the polystyrene model during its thermal decomposition. Specific properties of ceramic layer used for lost foam castings are required. To ensure optimal process flow of metal in the form proper permeability of the ceramic layer is needed. To ensure optimal conditions for technological casting method EPS patterns are tested and determined are the technological parameters and physical-chemical process in: material properties of the pattern, properties of the ceramic layer applied to the pattern, pattern gasification kinetics, pouring process. In the course of the research the characteristics of polystyrene and ceramic layer were determined.
Czasopismo
Rocznik
Tom
Strony
91--94
Opis fizyczny
Bibliogr. 21 poz., rys., wykr.
Twórcy
autor
- Foundry Research Institute, Kraków, Poland
autor
- Foundry Research Institute, Kraków, Poland
Bibliografia
- [1] A. Baliński, Wisła-Walsh E. 2008. Fly ash from hard coal combustion as a ceramic base material of moulding sands. “Polish Journal of Environmental Studies”, Vol.14, no. 3A, p. 44-48.
- [2] A. Baliński, 2010 Advanced oxidation and adsorption modification of dust waste from standard moulding sands. “Archives of Foundry Engineering”, Vol. 10, issue 2, p. 5–8.
- [3] I. Izdebska-Szanda, „Investigations of a correlation between the type and amount of modifier, high-temperature transformations and residual strength of sands with modified sodium silicates”, Transaction of Foundry Research Institute, No 1, 2008, p. 49-64 ISSN 1899-2439.
- [4] I. Izdebska-Szanda, A. Balinski, Potential changes zeta agreement binding "hydrated sodium silicate-diacetate ethylene glycol", Polska Metalurgia w latach 2006-2010- monografia wydana przez Wydawnictwo Naukowe „Akapit”, s. 418-425, (ISBN 978-83-60958-64-3).
- [5] I. Izdebska-Szanda, A. Balinski, Ecological and technological aspects uses of chemical modification of hydrated sodium silicate, Wysokojakościowe technologie odlewnicze, materiały i odlewy, Monografia, ISBN 978-83-929266-1-0, s. 19-34.
- [6] W. Jankowski, Z. Żółkiewicz, 2003. A method to evaluate the permeability and strength of ceramic protective coatings applied on lost foam patterns. “Archives of Metalurgy”, Vol. 48, no 3, p. 277–283.
- [7] A. Karwiński, Z. Żółkiewicz, Application of modern ecological technology lost foam for the implementation of machinery. TEKA, 2011, V. XIC s.91-99 Lublin. ISSN 1641-7739. PAN Lublin, Komisja Motoryzacji i Energetyki.
- [8] T. Pacyniak, R. Kaczorowski, Investigating the properties of refractory coatings applied on polyester patterns used in casting production by Lost Foam Process. PAN Katowice, Archiwum Odlewnictwa, Rocznik 3, nr 8, s. 147-155.
- [9] T. Pacyniak, Theoretical and technological backgrounds of the full mold process of casting manufacture. Zeszyty Naukowe nr 985, Politechnika Łódzka, 2006.
- [10] J. Pielichowski, J. J. Sobczak, Z. Żółkiewicz, E. Hebda, A. Karwiński, 2011, The thermal analysis of polistyrene foundry model „Transactions of the Foundry Research Institute”, Vol. L, no 1. p. 15-22.
- [11] Z. Pirowski, 2011. Aplication of Nickiel Superalloys On Castings For Conventional Energy Equimpment Items. “TEKA”, Vol. XIC, p. 246-255.
- [12] Piech K., The technology for the exercise of castings using EPS models. Prace Instytutu Odlewnictwa. 1994, R. 44, z. 3, s. 202–216.
- [13] Pysz Stanisław, Żółkiewicz Zdzisław, Żuczek Robert, Maniowski Zbigniew, Sierant Zbigniew, Młyński Mariusz: Simulation studiem of mould filling conditions with molten metal In evaporative pattern technology. Transactions of the Foundry Research Institute Kraków 2010, Volume L, nr 3 s.27-37.
- [14] Szinskj O.I., Anderson V.A., Šinskij I.O., New Directions in the Theory and Practice of Lost Foam Process. 62 Int.Foun.Congress, Philadelphia 1996, ref. 31, 1-10.kkk
- [15] Wilk J., Żółkiewicz Z....: Detrmination of optimum Technology in Respect of the Required Values of Casting Quality Parameters by Aplication of the Weighted Variables Metric. Materials Enginering, 2006, t.13, nr. 3, s. 89
- [16] Żmudzińska M., Faber J., Perszewska K., Żółkiewicz Z., Maniowski Z.: Studying the emission of products formed during evaporation of polystyrene patterns in the lost foam process in terms of the work environmet . Transactions of the Foundry Research Institute Kraków 2011, Volume L, nr 1 s. 23-34.
- [17] Żółkiewicz Z., Maniowski Z. Selected processes foundry in respect of environmental protection. Prace instytutu Nafty i Gazu. Kraków, 2009, nr. 164, s. 235-342. Pl ISSN 0209-0724.
- [18] Żółkiewicz Z., Żółkiewicz M., Pattern evaporation process. Archives of Foundry Engineering V. 7, Issue1, January-March 2007, Katowice-Gliwice, ref. 10/2 s. 49-52.
- [19] Żółkiewicz Z., Żółkiewicz M. 2010. Characteristic properties of materials for evaporative patterns. “Archives of Foundry Engineering”, Vol. 10, special issue, p. 289-292.
- [20] Żółkiewicz Z., Żółkiewicz M., Lost Foam Process – the Chance for Industry. TEKA, 2009, V. IX s.431-436 PAN Lublin. ISSN 1644-7739.
- [21] Żółkiewicz Z , Kinetics of gasification of the experimental pattern. The 69th World Foundry Congress. Oct 16-20, 2010 Hangzhou, China, Baner Presentation.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3fd6ec43-bdf5-4b2e-b4ff-afac680101c3