Sherkunov V.G., Rednikov S.N., Vlasov A.E., Tese P. The relationship between the electrolyte flow dynamics and the coating quality

Abstract

Problem Statement (Relevance): At present, the use of continuous casting machines for continuous casting of steel appears to be the most efficient and economically sound way of producing slabs and billets. A mould is one of the most critical and the most vulnerable component of such machine. Special coatings are installed to protect the mould and extend its service life. The most common method of coating is electroplating, which is due to its high productivity, efficiency and high quality. Besides, electroplating is applicable for almost all metals. Despite great expertise behind the electroplating technology, electroplated coatings have typical defects. Such defects may significantly affect the quality and life of a CCM. The development of efficient techniques for improving the quality of galvanic coatings is an urgent task in terms of the performance and life of a CCM mould. Objectives: The study is aimed at optimizing the flow of electrolyte in a bath for a higher wear resistance of copper mould plates. Methods Applied: Modelling of the electrolyte flow in the bath was done with Solid Works within the CosmosFloWorks design package. The experimental research involved a real-life experiment carried out with the help of an industrial electroplating machine. Originality: The study helped develop an original method for calculating the electrolyte flow dynamics and offered measures for improving the quality of electroplated coatings. Practical Relevance: The theoretical and experimental studies carried out helped enhance the wear-resistance of protective coatings. The proposed measures and the calculation method will enable a longer CCM mould life due to the enhanced protective coating.

Keywords

Continuous casting machine (CCM), mould, electroplating, non-uniform hardness.

Viktor G. Sherkunov – D.Sc. (Eng.), Professor South Urals State University, Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Sergey N. Rednikov – Ph.D. (Eng.), Associate Professor South Urals State University, Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Aleksandr E. Vlasov – Postgraduate Student South Urals State University, Chelyabinsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Pino Tese – Associate Professor, Executive Vice President SMS Siemag AG, Germany. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

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