| About
Galfan: Three years ago, the ownership rights to GalfanŽ Estate and
Technology were transferred to the Galfan Technology Center Inc. (GTC) located at University of Pittsburgh Applied Research Centre, Pittsburgh,
Pennsylvania, USA.
While the growth in use of
hot-dip galvanizing using virtually pure zinc has been dramatic, and the related decline
of electro-galvanizing is a well known trend, the fortunes of another long-established and
important anti-corrosion coating GalfanŽ are less well known. Nevertheless, over 2 million MT of GalfanŽ-coated
steel was produced in 2002 and due to new innovative marketing strategies, its global
popularity will continue to expand.
GalfanŽ as a trademark has been
around since the International Lead Zinc Research Organization (ILZRO) obtained worldwide
patents on this new alloy for anti-corrosion coating in
1981. This grew from an ILZRO-organized project co-sponsored by Arbed, Cockerill Sambre,
Usinor and Sacilor (and now all part of Arcelor), British Steel, Fabrique de Fer de
Maubeuge (now all part of Corus), New Zealand Steel, and Stelco (Canada) at Centre de
Recherches Metallurgiques in Belgium. This project showed that an alloy combining 95%
zinc, nearly 5% aluminum plus specific quantities of rare earth mischmetal could be
reliably used in the hot-dip coating process, and conferred substantially improved
performance to the end-product. Licenses to use the revolutionary GalfanŽ technology have
been granted to manufacturers worldwide.
The name GalfanŽ was given to
the new alloy product during a business meeting one evening after the first large-scale
production campaign at Sacilors, Ziegler S.A. works in Mouzon, France on July 8-10,
1981. Upon reviewing the success of this campaign, in which 150 tonnes of coils were
coated, with high quality product obtained after running the first 250 meters of strip
through the mill, J-L. Pagniez, head of the French Coated Steel Information Center
(CITAG), christened the product "galvanisation fantastique". This was shortened
to GalfanŽ, and this name then trademarked by ILZRO.
Because of its high aluminum
content, GalfanŽ does not possess the characteristic "spangle" of conventional
galvanized coatings. It can be given a featureless appearance by cooling immediately after
application of the coating, using conventional water spray, or by using zinc dust
nucleation techniques.
GalfanŽ-coated sheet, wire and
tube steel has found its way into a wide variety of products for the construction,
automotive, electrical appliance, industrial and farming sectors (see applications).
GTC supports its network of
"premier producer licensees", to which it supplies technical support and updates
on new products and application developments and a continuing research and development
program. GTC is funded through royalties on tons of GalfanŽ coated steel produced by the
licensees.
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