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Developments in Corrosion ProtectionWednesday, 2 November 2005
Beaumanor Hall, Woodhouse Eaves, Loughborough
Commencing 9.30 for 10.00 am
It is now 20 years since 35,000 sq meters of the steel decking of the Humber Bridge were sprayed with a coating of Zinc (minimum thickness of 75 microns) and preparations are now being made for the planned renewal of the surfacing. This will include the removal of the existing protection and the respraying of a replacement Zinc coating.
Coincidentally, the first important application for offshore structures, the spraying of the tethers and risers of the Conoco platform with Aluminium, took place at much the same time and subsequent inspections have confirmed the success of this system for the protection of steelwork when submerged in salt water. Subsequently, other large off shore structures have been protected by sprayed aluminium coatings in the splash zone and above.
More recently, the Tsing Ma bridge at Hong Kong linking the mainland to Lantau island where the new airport has been built, had 55,000 sq meters of decking sprayed with a 170 micron thick coating of Zinc. (for more details see the latest edition of "Coatings"). Such sprayed coatings are normally applied by the combustion or electric arc processes.
These major enterprises reinforce the confidence of constructors of large structures, often operating under severe conditions, in thermally sprayed sacrificial coatings for protection.
In the entirely different area of engineering components problems of aqueous corrosion are frequently accompanied with other factors requiring consideration, such as wear, elevated temperatures and attack by aggressive chemicals and gases. In these cases much harder, denser coatings of more exotic materials are required, typically ceramics, cermets and superalloys and these materials need to be applied by the High Velocity Oxygen Fuel (HVOF) or Plasma processes. In some cases the latter is frequently applied in the controlled conditions of a vacuum chamber. Other surfacing technologies such as vapour deposition are also of growing use for extreme conditions.
At this conference, expert speakers will review developments in some of the above areas.
The keynote speaker will be Roger Hudson of Corus who will review the use of thermally sprayed coatings in corrosion control of steel structures. Roger will also introduce ICATS an Institute of Corrosion scheme for certification of surface preparation and protective coating operatives.
This conference is organised by the Thermal Spraying and Surface Engineering Association and is supported by the Institute of Corrosion.
For further details please contact the Secretary, Dr Andrew Cole on 0870 760 5206 or email info@tssea.org.
Click here for a Registration Form
Click here for Provisional Agenda
Click here for location map
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