Method for the manufacture of a metal-coated steel strip and str

Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating electrolytic or nonelectrolytic coating after it is...

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205224, 205140, 204210, C25D 550

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active

051320045

ABSTRACT:
A method for the manufacture of a metal-coated steel strip with improved surface structure, wherein the strip is electrolytically coated with one or more metal coatings and the last-applied coating is temporarily melted by supplying heat to the strip (melting-on), is characterized in that the heat supplied to the strip for effecting the melting-on is generated at least in part by an electric current which is at all times non-zero. The heat supplied to effect the melting-on substantially continously compensates heat loss from the strip to the surroundings during the melting-on, and may for example be generated by electrical resistance heating using only a direct current or using an alternating current on which is superimposed a direct current. The strips produced are free of the so-called woodgrain effect.

REFERENCES:
patent: 2566468 (1951-09-01), Taylerson
Hoare et al., "The Technology of Tinplate", Edward Arnold Ltd., London, 1965, pp. 242-243 and 284-288.

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