ELECTRODEPOSITED GALVANIC COATINGS ZNNI - COMPARISON MEMBRANE SYSTEM WITH CONVENTIONAL METHOD

1,2 SZŁAPA Ilona
Co-authors:
2 JĘDRZEJCZYK Dariusz 2 SKOTNICKI Wojciech
Institutions:
1 BULTEN POLSKA S.A. 43-300 Bielsko-Biała, ul. Bukietowa 60, Poland, ilona.szlapa@bulten.com
2 University of Technology in Bielsko Biała, 43-300 Bielsko - Biała, ul. Willowa 2, Poland, djedrzejczyk@ath.bielsko.pl, wskotnicki@ath.bielsko.pl
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
1141-1146
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
10 views / 4 downloads
Abstract

The purpose of these studies is to compare the parameters of the galvanic process using a conventional method for electrodeposition of ZnNi coating with a new method using a membrane system. The study was conducted on a pilot production barrel line using electrolytes operating in industrial conditions. The coating was applied to M6 carbon steel bolts mass-produced and heat-treated. The composition of both baths and their cathode current efficiency was analyzed. The deposition rate and concentration of nickel in the coating were evaluated. Studies have shown a difference in coating deposition rates and in the content of nickel in the coating.

Keywords: Fasteners, alloy coatings, current efficiency, membrane system
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