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Hot-Dip Galvanized Kettles Finished with Nickel – Products Finishing

SUR/FIN 2021 exhibitor Hunter Chemical’s NiMax Tablets add nickel to hot-dip galvanizing kettles, which the company says leads to more efficient use of the metal.
Hunter Chemical’s NiMax Tablets add nickel to hot-dip galvanizing (HDG) kettles. According to the company, NiMax is unique because the particle size of the nickel powder contained within the tablet falls within a controlled range, leading to a more efficient use of nickel. Hunter also offers nickel in powder form for the HDG industry, as well as other nickel, carbon and chromium-based materials for other surface finishing processes.
Research at the authors’ laboratories has focused on pulse/pulse reverse electrolysis on cathodic processes, such as hard chromium plating from non-hexavalent chemistries. This papers describes studies into pulse/pulse reverse electrolysis as applied to electrochemical metal removal processes, such as electropolishing and electroetching.
In this paper, a review of several process solutions, examining coolants, solvent cleaning, alkaline clean/etch and deoxidizing/desmutting, listing intended and unintended chemical reactions along with possible mechanisms that would favor corrosion formation.
This paper is a peer-reviewed and edited version of a paper delivered at NASF SUR/FIN 2013 in Rosemont, Ill., on June 12, 2013.
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