Electrometallurgy Today, 2024, №02



2024 №02 (07)

DOI of Article 10.37434/sem2024.02.08

2024 №02 (01)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2024, #2, 53-57 pages

Investigations of physico-mechanical properties of refined copper as a material for CCM mould walls

O.M. Smirnov, A.V. Narivskyi, V.Ye. Ukhin, V.O. Tunyk

Physico-Technological Institute of Metals and Alloys of the NAS of Ukraine. 34 Acad. Vernatskyi Blvd, 03142, Kyiv, Ukraine. E-mail: vladimir.tunik@gmail.com

Abstract
Comprehensive analysis of physical-mechanical properties of plates made from fire-refined copper was performed, and the possibility of their application as the structural material for the mould working walls was substantiated. It is shown that fire-refined copper is a promising structural material, and it can be regarded as initial material at manufacture of plates for the working walls of rectangular moulds used at continuous casting of metals. When the mould working walls are made from refined copper, the heat removal intensity stays at practically the same level, as for cathode copper. Investigations showed that in the refined copper the temperature of the start of recrystallization is approximately 45 °C higher than that of the cathode copper, which should be associated with a certain quantity of silver, nickel and tin in its composition, which are present in the melt as accompanying elements. The main strength and ductility values of refined copper are at approximately the same level, as those of the cathode copper. 14 Ref., 2 Tabl., 4 Fig.
Keywords: copper, secondary materials, fire refining, admixtures, electric conductivity, heat conductivity, mechanical properties, oxidation, heat removal, mould

Received: 05.05.2024
Received in revised form: 10.05.2024
Accepted: 27.05.2024

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