Chemical reactions in fluxes for hot dip galvanizing

Abstract

In the hot dip galvanizing process two different fluxes are used to remove the zinc oxide layer, always present on the liquid zinc surface. When this oxide layer, which contains also aluminium oxide, is dragged into the zinc by the articles, interfering the reaction zinc‐iron. In former days a flux floating on a part of the liquid zinc surface was rather common, at present this wet flux is almost completely replaced by the dry galvanizing process. Since the chemical reactions taking place in the wet flux, partly take place in the flux for dry galvanizing too, first this wet flux will be discussed in brief.

Citation

Sjoukes, F. (1990), "Chemical reactions in fluxes for hot dip galvanizing", Anti-Corrosion Methods and Materials, Vol. 37 No. 4, pp. 12-14. https://doi.org/10.1108/eb007267