Cailiao Baohu (Jan 2023)

Current Research Status and Progress of the Flux for Hot-Dip Galvanizing

  • YAO Xiong-ting, KONG Gang, CHE Chun-shan, LAI De-lin, WAN Xian-lan, LIAO Xing-li

DOI
https://doi.org/10.16577/j.issn.1001-1560.2023.0019
Journal volume & issue
Vol. 56, no. 1
pp. 121 – 126

Abstract

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Solvent fluxing is a unique procedure of hot-dip galvanizing, which directly affects the quality and uniformity of hot-dip galvanized coating. This paper introduced the role and principle of the flux for hot-dip galvanizing, and analyzed the effects of the total concentration, temperature, pH value and Fe2+ concentration on the results of the fluxing and hot dip galvanizing. Furthermore, the types and research progresses of new ammonium-free fluxes as well as the fluxes for hot-dip Zn-Al(Mg) alloys were introduced, and the problems and future development directions of the fluxing technology of hot-dip galvanizing were pointed out.

Keywords