Citation
(1998), "Ceramic-based coating saves drums from molten zinc decay", Anti-Corrosion Methods and Materials, Vol. 45 No. 1. https://doi.org/10.1108/acmm.1998.12845aab.004
Publisher
:Emerald Group Publishing Limited
Copyright © 1998, MCB UP Limited
Ceramic-based coating saves drums from molten zinc decay
Methods
Ceramic-based coating saves drums from molten zinc decay
Dudley-based Metallisation Limited has solved the problem of how to stop the perforated drums used in zinc recovery from dissolving through contact with the molten metal.
The answer was to apply an all-over protective coating based on heat resistant ceramics and, as a result, the life of a dram has been extended by a massive 50-fold!
In its molten form, zinc is extremely aggressive, dissolving most iron and nickel
Ceramic
based coating saves drums from molten zinc decay. MET-JET II HVOF system
-based materials. As a consequence, the perforated drums used in zinc recycling plants to separate the molten zinc from the dross tended to dissolve rapidly, contaminating the refined zinc at the same time.
But Metallisation, as Britain's only zinc wire producer and with a continuous casting facility, has first hand experience of the rigours associated with handling molten zinc.
It was this knowledge, combined with their unrivalled expertise in thermal spraying technology, which lead them to the solution of how to protect the perforated drums plasma spray the drums internally and externally with P205 alumina ceramic.