The influence of the basic styrofoam patterns final shaping parameters on the resistance properties

• Autorzy: Pacyniak T. , Buczkowska K.
• Języki publikacji: EN

Abstrakty

EN

This work presents the analysis of the final shaping process of the patterns aimed at determining the influence of the pressure and the time of sintering on the resistance to bending. The analysis of the research results proved that when the pressure of the sintering rises and reaches Ps=2.1 bar the resistance to bending increases, above this level of the pressure the resistance value starts decreasing. The time of styrofoam sintering at which the highest bending resistance values were obtained is ts=90 s. When the sintering pressure is less than 2 bar prolongation of the time of sintering over 90 s causes a slight increase in the resistance, however, at higher pressures prolongation of the time of sintering causes submelting of the styrofoam pattern.

Słowa kluczowe

EN

foundry; lost foam; polystyrene patterns; casts

PL

odlewnictwo; tracona piana; styropianowy model odlewniczy; odlew

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 4
• Strony: 121--126
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Pacyniak T.

autor

Buczkowska K.

• Department of Materials Engineering and Production Systems, Technical University of Łódź, 1/15 Stefanowskiego Street, 90-924 Łódź, Poland,

Bibliografia

• Shroyer H. F.: US Patent No 2, 830, 343, 1958.
• [2] Clegg A. J.: Expanded-polystyrene Moulding - a Status Report, Foundry Trade Journal International, June 1986, 51-69.
• [3] Pacyniak T.: Theoretical and Technological Basis of the Lost Foam Process, Scientific Notebooks No 985 University of Technology in Lódź 2006 [in Polish].
• Bailey R.: Modern Casting,1982,72, 4, 58.
• [5] Pacyniak T. , Kaczorowski R.: Investigations of polystyrene pre-expansion process by use of test stand equipped with batch pre-expander. Archives of Metallurgy and Materials, vol. 55, Issue 3/2010, s. 883-888.
• [6] Pacyniak T. , Buczkowska K. , Kaczorowski R.: Influence of time and pressure of forming a pattern on mechanical properties. PAN Katowice - Gliwice 2011, Archives of Foundry Engineering 2011 Vol. 11, Special Issue 3, s. 151-156.
• [7] Lost Foam Casting - shaping up to the future. A revive of the polystyrene moulding technology from Foseco. The British Foundryman, 79, 1986, 12, 466.
• [8] Gniewaszewski E., The Analysis of the Styrofoam Patterns Shaping Process on the Test Bench, Diploma Paper under the supervision of T. Pacyniak, KTMiSP PŁ, 2010 [in Polish].
• [9] Brown J. R. Proceedings of The American Foundrymen`s Society Conference: Evaporative Foam Casting Technology III, 1988, 159.
• [10] Pacyniak T, Kaczorowski R.: The Analysis of the Refractory Coating Applied on the Polystyrene Patterns Used in the LOST FOAM Process, PAN Katowice, Archives of Foundry, volume 3, No 8, pp. 147-155 [in Polish].
• [11] Pacyniak T.: The effect of refractory coating permeability on the Lost Foam process, Archives of Foundry Engineering, vol.8, Issue 3,July-September 2008.
• [12] http://www.heitz.de/fileadmin/user_upload/HEITZ_brochures/HEITZ_Evolution_2010_EN.pdf z dn. 21.05.2012 r.
• [13] T. Pacyniak, K. Buczkowska, W. Bogus, The Analysis of the Influence of the Polystyrene Patterns Shaping Parameters on the Resistance Properties, vol.12 , Issue 2/2012, 227-234.
• [14] Parzybut D., The Stand for Pattern Shaping Made of Foamed Plastics, Diploma Paper under the supervision of T. Pacyniak , KTMiSP PŁ, 2012 [in Polish].
• [15] Technical documentation of the TS device manufactured by LAB-TRADE [in Polish].