Design and optimization of a castability test for copper alloys applied to plaster moulds.

Autor:	Radkovský F; Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic., Zlámal F; Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic., Vasková I; Department of Metallurgy, Technical University of Kosice, Faculty of Materials Metallurgy and Recycling, Letná 1/9, 042 00, Košice-Sever, Slovakia., Bašistová M; Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic., Lichý P; Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic., Kielar Š; Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic., Socha L; Department of Environmental Technology, Institute of Technology and Business in České Budějovice, Okružní 517/10, 370 01 České Budějovice, Czech Republic.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 May 24; Vol. 10 (11), pp. e31879. Date of Electronic Publication: 2024 May 24 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e31879
Abstrakt:	The paper deals with the design and execution of the test of the castability into preheated plaster moulds. Castability is an important parameter for the evaluation of foundry alloys. When the metal does not run, it usually causes an irreparable defect in the casting. Therefore, it is necessary to verify this technological property correctly for different types of moulds. The castability test for plaster moulds and bronze is not defined, therefore The Vertical Bar Test was adopted, subsequently modified, and applied to plaster moulds. The models are made of wax and the plaster moulds are made according to the manufacturer's prescription and heated to a predetermined temperature. Copper alloy specifically CuSn10 was selected as the alloy to be investigated. The aim of the experiment is to correctly set up and observe the parameters and the method of performing the castability test using gravity casting technology in plaster moulds. It is assumed, as the casting temperature increases, the run-in length of the metal alloy will increase. An important goal is to obtain relevant results, as many variables affect the progress of the test and so there is a risk of error. Due to the time-consuming nature of producing a real disposable model and mould, any failure to succeed would have an economic impact on the foundry, affecting the price of castings. The new method for evaluating castability in plaster moulds can be applied to other types of alloys when temperature changes occur. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 Published by Elsevier Ltd.)
Databáze:	MEDLINE
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