5. Conclusion
The shaping of zinc and its alloys is very similar to the shaping of other more common metals, such as steels and aluminum and copper alloys: the various processes and installations used for the first and second transformation stages are often the same, or at least similar.
In the case of zinc, there is a strong preponderance of hot and warm rolling, mainly of flat products for building applications.
The main characteristic of products after shaping is the presence of strong anisotropy in mechanical properties (due to the hexagonal crystalline structure), combined with a strong influence of temperature and deformation rate.
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Conclusion
Economic data
The world market for rolled products for the building industry (around 90% of total consumption) is around 300,000 t/year, with annual growth of 2%. Production and consumption vary widely from one country to another, depending above all on the traditions inherited from the previous two centuries.
Western Europe is largely dominant, but there is strong growth in consumption in new markets, notably...
Bibliography
References
Standardization
Association française de normalisation AFNOR
- Coverage – Metal – Shaped metal strips – Specifications - NF P 34-402 - 08 1987
- Coverage – Metal – Metal joint covers – Specifications - NF P 34-403 - 08 1987
- Rainwater drainage – Metal gutters, brackets and caissons – Specifications - NF P 36-402...
Organizations
France
Chambre syndicale du zinc et du cadmium (Fédération des chambres syndicales des minerais, minéraux industriels et métaux non ferreux) http://www.mineraux-et-metaux.org/fr/chambres/
Germany
Semi-finished product producers
Grillo Werke AG http://www.grillo.de/egrillo/fmag.htm
Jarden Zinc Products http://allzinc.com
Nedzink BV http://www.nedzink.nl/
...
Specifications. Regulations. Specifications
Center Scientifique et Technique du Bâtiment CSTB
NF P 34-211 09 2004
- Building work – Zinc sheet and long sheet metal roofs – Part 1 – technical specifications – Part 2: specifications. - DTU 40.41 -
P 36-201...
Manufacturers
Hazelett Strip-Casting Corporation http://www.hazelett.com
Continuus S.p.A. http://www.properzi.com/contacts.ctr
SMS Demag AG http://www.sms-demag.com/
...
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