1. Metallurgical structure of the coating
1.1 Industrial process steps
Galvanizing is the process of creating a coating of iron and zinc alloys. The success of this metallurgical reaction depends on the quality of the surface preparation.
As with all quality coatings on steel (paint, electrolytic deposits, vacuum deposits and others), hot-dip galvanizing requires surface preparation prior to immersion in the zinc bath, aimed at eliminating as many foreign bodies as possible that could hinder the reaction (figure 1 ). Indeed, throughout the manufacturing process, the parts to be galvanized undergo various treatments or aggressions that leave traces right...
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Metallurgical structure of the coating
Anti-corrosion coating performance
Bibliography
Standards and norms
- Hot-dip galvanizing coatings on finished cast-iron and steel products – Specifications and test methods - NF EN ISO 1461 - 2009
- Steel products – Requirements for hot-dip galvanizing steel components - NF A 35-503 - 2008
- Zinc cladding – Guidelines and recommendations for corrosion protection of iron and steel in buildings – Part 1: General principles of design and corrosion resistance - NF EN ISO 14713-1...
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