Influence of Type and Shape of the Chill on Solidification Process of Steel Casting

• Autorzy: Jaromin M. , Dojka R. , Jezierski J. R. , Dojka M.

Identyfikatory

DOI

10.24425/afe.2018.125188

• Języki publikacji: EN

Abstrakty

EN

The article is a case study of the steel milling ring casting of about 6 tonnes net weight. The casting has been cast in the steel foundry the authors have been cooperating with. The aim was to analyse the influence of the shape of the chills and the material which was used to make them on the casting crystallization process. To optimally design the chills the set of the computer simulation has been carried out with 3 chills’ shape versions and 3 material’s versions and the results have been compared with the technology being in use (no chills). The proposed chills were of different thermal conductivity from low to high. Their shapes were obviously dependant on the adjacent casting surface geometry but were the result of the attempt to optimise their effect with the minimum weight, too. The chills working efficiency was analysed jointly with the previously designed top feeders system. The following parameters have been chosen to compare their effectiveness and the crystallization process: time to complete solidification and so-called fed volume describing the casting feeding efficiency. The computer simulations have been carried out with use of MagmaSoft v. 5.2 software. Finally, the optimisation has led to 15% better steel yield thanks to 60% top feeders weight reduction and 40% shorter solidification time. The steel ring cast with use of such technology fulfil all quality criteria.

Słowa kluczowe

EN

solidification process; crystallization process; computer simulation; steel casting; chill

PL

proces krzepnięcia; proces krystalizacji; symulacja komputerowa; odlewy stalowe; chłód

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 1
• Strony: 35--40
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Jaromin M.

• Odlewnia Staliwa Łabędy, Gliwice, Poland

autor

Dojka R.

• Silesian University of Technology, Department of Foundry Engineering, Gliwice, Poland

autor

Jezierski J. R.

• Silesian University of Technology, Department of Foundry Engineering, Gliwice, Poland

autor

Dojka M.

• Silesian University of Technology, Department of Foundry Engineering, Gliwice, Poland

Bibliografia

• [1] Skarbiński, M. (1972). Starting production in the foundry. Warszawa: WNT. (in Polish).
• [2] Chojecki, A., Telejko, I. (2003). Steel Foundry. Kraków: AKAPIT. (in Polish).
• [3] Sobczak, J.J. (2016). Guide to the Foundry. Kraków: Stowarzyszenie Techniczne Odlewników Polskich. (in Polish).
• [4] Kanthavela, K., Arunkumarb, K., Vivekc S. (2014). Investigation of chill performance in steel casting process using Response Surface Methodology. In 12th Global Congress on Manufacturing and Management, 8-10 December 2014 (pp. 329-337) Vellore, India: Procedia Engineering.
• [5] Ignaszak, Z. (2000). Identification of coolant interaction on solidification of steel castings. Solidification of Metals and Alloys. 44(2), 137-142.
• [6] MagmaSoft v5.2 Database.
• [7] Copur, M., Turan, A. & Eruslu, M.N. (2015). Effects of chills on the solidification pattern of an axial steel cast impeller METABK. 54(3), 515-518.
• [8] Pensuwan, A., Smerpitak, K. & Ukakimaparn, P. (2009). Temperature Estimation of Liquid Steel in Induction Furnace. In Proceedings of the International MultiConference of Engineers and Computer Scientist, 18-20 March 2009 (ISBN: 978-988-17012-7-5) Hong Kong: IMECS.

Uwagi

PL

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