Analysis of Reoxidation Processes with Aid of Computer Simulation

• Autorzy: Remišová A. , Brůna M.

Identyfikatory

DOI

10.24425/afe.2019.129630

• Języki publikacji: EN

Abstrakty

EN

Submitted work deals with the analysis of reoxidation processes for aluminium alloys. Due to the aluminium high affinity to the oxygen, the oxidation and consequently reoxidation will occur. Paper focuses on the gating system design in order to suppress and minimize reoxidation processes. Design of the gating system is considered as one of the most important aspect, which can reduce the presence of reoxidation products - bifilms. The main reason for the reoxidation occurrence is turbulence during filling of the mold. By correctly designing the individual parts of gating system, it is possible to minimize turbulence and to ensure a smooth process of the mold filling. The aim of the work is an innovative approach in the construction of gating system by using unconventional elements, such as a naturally pressurized system or vortex elements. The aim is also to clarify the phenomenon during the gating system filling by visualization with the aid of ProCAST numerical simulation software. ProCAST can calculate different indicators which allow to better quantify the filling pattern.

Słowa kluczowe

EN

aluminium alloys; reoxidation; computer simulation; gating system

PL

stopy aluminium; reoksydacja stopów; utlenianie; symulacja komputerowa; system bramkowania

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 4
• Strony: 55--60
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Remišová A.

• Department of Technological Engineering, University of Zilina, Zilina, Slovakia

autor

Brůna M.

• Department of Technological Engineering, University of Zilina, Zilina, Slovakia

Bibliografia

• [1] Campbell, J. (2015). Complete casting handbook. Oxford: UK: Elsevier. ISBN 978-0-444-63509-9.
• [2] Brůna, M., Bolibruchová, D. & Pastirčák, R. (2017). Analýza reoxidačných procesov vo vtokovej sústave pri odlievaní Al zliatin. Slévárenství. 9-10, 300-303. ISSN 0037-6825.
• [3] Liu, J., Wang, Q., & Qi, Y. (2019). Atomistic simulation of the formation and fracture of oxide bifilms in cast aluminum. Acta Materialia. 164, 673-682. ISSN 1359-6454.
• [4] Hashemi, H. & Raiszadeh, R. (2009). Naturally-Pressurized running systems: The role of ceramic filters. Journal of Applied Sciences. 9, 2115-2122. ISSN 1812-5654.
• [5] Hsu, F.Y., Jolly, M.R. & Campbell, J. (2006). Vortex-gate design for gravity casting. International Journal of Cast Metals Research. 19, 38-44. ISSN 1364-0461.
• [6] Brůna, M., Bolibruchová, D., & Pastirčák, R. (2017). Reoxidation processes prediction in gating system by numerical simulation for Aluminium Alloys. Archives of Foundry Engineering. 17(3), 23-26. ISSN 1897-3310.
• [7] Krivoš, E., Pastirčák, R. & Madaj, R. (2014). Effect of technological parameters on the quality and dimensional accuracy of castings manufactured by patternless process technology. Archives of Metallurgy and Materials. 59, 1069-072. ISSN 1733-3490.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)