Thermal spray for commercial shipbuilding
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Thermal spraying of steel with aluminum to protect it from corrosion is a technology that has been proven to work in the marine environment. The thermal spray coating system includes a paint sealer that is applied over the thermally sprayed aluminum. This extends the service life of the coating and provides color to the end product. The thermal spray system protects steel both through the principle of isolation (as in painting) and galvanizing. With this dual protection mechanism, steel is protected from corrosion even when the coating is damaged. The thermal- sprayed aluminum coating system has proved the most cost- effective corrosion protection system for the marine environment. Until recently, however, the initial cost of application has limited its use for general application. Arc spray technology has reduced the application cost of thermal spraying of aluminum to below that of painting. Commercial shipbuilders could use this technology to enhance their market position in the marine industry.
Keywordsare spray corrosion protection shipbuilding
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- 1.B.A. Shaw and A.G.S. Morton, “Final Report, Five Year Evaluation of Flame and Arc Sprayed Aluminum, Zinc, and 85/15 Zinc/Aluminum,” Marine Corrosion Branch, David Research Center, Bethesda, MD, DTNSRDC-SME-87-11, 1987Google Scholar
- 2.“Code of Practice for Protective Coating of Iron and Steel Structures Against Corrosion,” BS5493, British Standard Institution, 1977Google Scholar