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Waldemar St. Szajna

Relative Density and Its Role in Geotechnical Projects Involving Cohesionless Soils, Baltimore, ASTM STP523 1973, 141-155. 4. Dobry R., Whitman R.V.: Compaction of sand on a vertically vibrating table, in: Evaluation of Relative Density and Its Role in Geotechnical Projects Involving Cohesionless Soils, Baltimore, ASTM STP523 1973, 156-170. 5. Langer J.: Dynamics of building structures, Wrocław, Wydawnictwo Politechniki Wrocławskiej 1980 (in Polish). 6. PN-88/B-04481: Engineering soil. Testing of soil samples, Warszawa

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G.L. Di Muoio and N.S. Tiedje

References [1] Schutze, N. (2011). Control Limits for the Drying of Water Based Coatings, Foseco, Foundry Practice, Issue 255, June. [2] Jamrozowicz, L., Zych, J. & Snopkiewicz, T. (2013). The Research of Desiccation Rates Selected Protective Coating Used on Mould and Sand Cores. Archive of Foundry Engineering, Vol.13, 01, 45-50. [3] Jakubski, J., Dobosz, S. & Jelinek, P. (2005). The influence of the protective coating type on thermal deformation of casting cores. Archives of Foundry, Volume 5, № 15

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A. Kadauw

, Analysis and assessment of foundry moulding sand preparing process using the dynamic power measurement method. Archives of Metallurgy and Materials 55 , 3, 953-961 (2010). [5] A. Fedoryszyn, C. Rudy, K. Smyksy, The rationalization of construction and operation of the equipment for the moulding sand preparation. Archives of Metallurgy and Materials 58 , 3, 915-918 (2013). [6] W. Tilch, Moderne Formmaschinen und -verfahren, Teil 1: Grundlagen der Formtechnik, Giesserei-Praxis 2 , 53-72, (2004). [7] J. Bast, A. Kadauw, 3D Numerical Simulation of Squeeze Moulding

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B. Kalandyk, R. Zapała, Ł. Boroń and M. Solecka

Abstract

Studies described in this paper relate to common grades of cast corrosion resistant Cr-Ni steel with different matrix. The test materials were subjected to heat treatment, which consisted in the solution annealing at 1060°C followed by cooling in water. The conducted investigations, besides the microstructural characteristics of selected cast steel grades, included the evaluation of hardness, toughness (at a temperature of -40 and +20oC) and type of fracture obtained after breaking the specimens on a Charpy impact testing machine. Based on the results of the measured volume fraction of ferrite, it has been found that the content of this phase in cast austenitic steel is 1.9%, while in the two-phase ferritic-austenitic grades it ranges from 50 to 58%. It has been demonstrated that within the scope of conducted studies, the cast steel of an austenitic structure is characterised by higher impact strength than the two-phase ferritic-austenitic (F-A) grade. The changing appearance of the fractures of the specimens reflected the impact strength values obtained in the tested materials. Fractures of the cast austenitic Cr-Ni steel obtained in these studies were of a ductile character, while fractures of the cast ferritic-austenitic grade were mostly of a mixed character with the predominance of brittle phase and well visible cleavage planes.

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Maria J. Sulewska and Dariusz Tymosiak

with particular reference to compaction energy. Soils Found. 44 (5): 27–36. KOLBUSZEWSKI J. 1967: Specjalne własności piasków. Porowatość graniczna [Some special properties of sand materials. Porosity]. Wykład 1. SGGW, Warszawa [Engl. summ.]. MAJER S. 2009: Zagęszczalność gruntów niespoistych a wskaźnik jednorodności uziarnienia [Compactibility of non-cohesive soils versus uniformity coefficient]. In: Materiały IV Międzynarodowej Konferencji Naukowo-Technicznej „Nowoczesne technologie w budownictwie drogowym”, Poznań: 446–455 [Engl. summ.]. MAJER S

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K. Smyksy and M. Brzezinski

References [1] K. Smyksy, M. Brzezinski, Energy-consumption factors of air-stream moulding machines. Archives of Foundry Engineering 12 (3), 109-114 (2012). [2] The offer materials of foundry machines manufacturers: Heinrich Wagner Sinto, K¨unkel Wagner, Disa, Dozamet, EMI Inc., Technical. [3] M. Brzezinski, Evaluation of vacuum assisted compaction processes of foundry moulding sand by theoretical and experimental methods. Archives of Metallurgy and Materials 55 (3), 763-770 (2010). [4] M. Slazyk

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Andrzej Sawicki, Jacek Mierczyński and Justyna Sławińska

-Cohesive Soils , Balkema, Rotterdam/Brookfield. Sawicki A. (1987) An engineering model for compaction of sand under cyclic loading, Engineering Transactions , 35 , 4, 677–693. Sawicki A. and Świdziński W. (2006) A study on liquefaction susceptibility of some soils from the coast of Marmara sea, Bulletin of the Polish Academy of Sciences, Technical Sciences, 54 , 4, 405–418. Sawicki A., Mierczyński J. and Świdziński W. (2014a) Basic set of experiments for determination of mechanical properties of sand, Bulletin of the Polish Academy of Sciences

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J. Jakubski, St. M. Dobosz and K. Major-Gabryś

, M., Biernacki R. & Kochański A. (2005). Modeling of manufacturing processes by learning systems: The naïve Bayesian classifier versus artificial neural networks. Journal of Material Processing Technology. 164-165. DOI: 10.1016/j.jmatprotec.2005.02.043 [7] Rudy, Cz. Preparing and rebonding of moulding sand. Retrieved June 11, 2012, from http://www.technical.com.pl/files/exposition/Konferencje_IX_Konferencja_Odlewnicza_Technical_xxaec.pdf [8] Dobosz, St. M. (1986). Compactability and rebounding of moulding sand problems. 12th

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Ryszard Staroszczyk

. , 98 (6), 603–624. Lysmer J. (1970) Lumped mass method for Rayleigh waves, Bull. Seism. Soc. Am. , 60 (1), 89–104. Martin G. R., Finn W. D. L. and Seed H. B. (1975) Fundamentals of liquefaction under cyclic loading, Proc. ASCE, J. Geotech. Eng. Div. , 101 , 423–438. Morland L. W. and Sawicki A. (1983) A mixture model for the compaction of saturated sand, Mech. Mater. , 2 (3), 203–216. Morland L.W. and Sawicki A. (1985) A model for compaction and shear hysteresis in saturated granular materials, J. Mech. Phys. Solids , 33 , 1

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R. Dańko, J. Dańko, A. Burbelko and M. Skrzyński

References [1] Aksjonow, P. N. (1965). Selected topics from the theory of casting machines. Katowice: „Śląsk” Publishing House. [2] Dańko, J. (1992). Theoretical and experimental verification of the model used for calculating Aksyonov blast stoves. Archiwum Technologii Budowy Maszyn. 10, 7-15. [3] Dańko, J. & Dańko, R. (2009). Assessment of Core Sand suitability for filling the core-box and for compaction. Archives of Foundry Engineering. 9(1), 37-40. [4] Asłanowicz, M., Dańko, J., Dańko, R