The Influence of the Method of Mould Filling on the Quality of Castings Made of EN AC-44000 or EN AC-46200 Alloy

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

Identyfikatory

DOI

10.2478/afe-2014-0089

• Języki publikacji: EN

Abstrakty

EN

The performed examinations concerning the process of filling the plaster ceramic moulds with aluminium alloys allowed to assess the influence of various methods of introducing the metal into the mould cavity on the macro- and microstructure of the obtained experimental castings. The comparison was performed for castings with graded wall thickness made either of EN AC-44000 alloy or of EN AC-46000 alloy, produced either by gravity casting, or by gravity casting with negative pressure generated around the mould (according to the Vacumetal technology), or by counter-gravity casting. It was found that the silicon crystals grow in size with an increase in wall thickness due to the slower cooling and solidification of castings.

Słowa kluczowe

EN

innovative foundry materials; innovative foundry technologies; plaster mould; counter-gravity casting; vacuum casting

PL

innowacyjne materiały odlewnicze; innowacyjne technologie odlewnicze; forma odlewnicza; odlewanie próżniowe

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 4
• Strony: 73--76
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Nadolski M.

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

autor

Konopka Z.

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

autor

Łągiewka M.

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

autor

Zyska A.

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

Bibliografia

• [1] Dańko, J. (2000). Machines and devices for pressure casting. Theoretical foundations. Construction. Measurements and maintenance. Cracow: Ed. AGH.
• [2] Białobrzeski, A. (1992). Pressure casting. Machines, devices and technology. Warsaw: PWN.
• [3] Białobrzeski, A. & Martynowska, E. (1977). Pressure reducing systems in a pressure die. Przegląd Odlewnictwa (Foundry Review). 5, 112-115.
• [4] Białobrzeski, A. (1984). Machines, devices and technology of pressure casting. Cracow: Ed. Foundry Research Institute.
• [5] Nadolski, M., Konopka, Z., Łągiewka, M. & Zyska, A. (2014). The Influence of the Mould Filling Conditions on the Quality of Casting Made of EN AC-44000 Alloy. Archives of Foundry Engineering. 14(2), 19-23.
• [6] Łągiewka, M., Konopka, Z., Nadolski, M. & Zyska, A. (2014). The effect of Vacuum Assistance on the Quality of Casting Produced by High pressure Die Casting Method. Archives of Foundry Engineering. 14(2), 24-27.
• [7] Piłkowski, Z., & CzyŜ, M. (1997). Examinations of moulding materials intended for Vacumetal process. Krzepnięcie Metali i Stopów (Solidification of Metals and Alloys). 31, 171-179.
• [8] Ochęduszko, St. (1981). Applied thermodynamics. Warsaw: WNT.
• [9] Wierzbicka, B. (1981). Solidification of casting alloys under external pressure. Krzepnięcie metali i stopów (Solidification of Metals and Alloys). IV, 35-46. Ossolineum.