4. Conclusion
Although the hot-dip galvanizing process was discovered by the Frenchman Moulin in 1742, it is still in use today.
The use of Al-killed (rather than Si-killed) steels and high-strength steels requires constant adaptation of the process.
Applications such as walkways and bridges, with an expected lifespan of 100 years, will require strong coatings with excellent corrosion and abrasion resistance.
Other applications, for uses protected from the elements, will require thin coatings, which can be achieved with highly alloyed zinc baths (which are not currently covered by standard EN ISO 1461).
In this context, ongoing developments and process adaptations will support galvanizers, enabling them to best meet the specific requirements of the various sectors that use galvanized steel.
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Conclusion
Bibliography
Bibliography
- (1) - - http://www.egga.com
- (2) - COUTSOURADIS (D.) - Developments in zinc and zinc alloy coated sheet - . Intergalva n° 91, Barcelone, EGGA.
- ...
Standards and norms
NF EN ISO standards
- Revêtements métalliques – Revêtements de galvanisation à chaud sur métaux ferreux – Détermination gravimétrique de la masse par unité de surface - NF EN ISO 1460 - 2020
- Revêtements par galvanisation à chaud sur produits finis ferreux – Spécifications et méthodes d’essai - NF EN ISO 1461 - 2022
- Revêtements métalliques et couches d’oxyde – Mesurage de l’épaisseur – Méthode par...
Directories
See the websites: http://www.galvazinc.com http://www.galvanizingeurope.org http://www.iza.org
Main suppliers of zinc:
Economic data
Annual global zinc production exceeds 10 million metric tons, with approximately 60% of this production used for steel protection.
In Europe, approximately 7 million tons of galvanized steel are used each year in manufactured products, including:
3 Mt for the construction/building sector;
0.9 Mt for street furniture;...
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