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Definition of "Hot Dip Coating" |
The coating that develops during the galvanizing process is metallurgically bonded to the steel – virtually becoming a part of the steel itself. During the reaction in the kettle, the zinc interacts with the iron in the steel to form a series of zinc-iron alloy layers. The photomicrograph below is a cross section of the galvanized steel coating, showing a typical microstructure comprised of three alloy layers and a layer of pure metallic zinc. |
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