Title: Production of galvanized steel strip

Abstract: Steel strip is first heated to a predetermined temperature suitable for imparting desired properties to the strip and is then immersed in an aqueous bath maintained at substantially its boiling temperature. The composition of the aqueous bath is preferably adjusted to ensure the formation of an oxide film on the entire surface of the strip. After the strip has been withdrawn from the bath, oxide is eliminated from at least part of the surface of the strip, e.g., from one or both faces, by removal of the oxide or by reduction of the oxide. Simultaneously or subsequently, the strip is heated to a given temperature, e.g., 420.degree.-550.degree. C., maintained at this temperature, and immersed at this temperature in molten zinc.

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Inventors: Paulus, Philippe (Liege, BE)
Economopoulos, Marios (Liege, BE)

Application Number: 782953
Filing Date: 1977-03-30
Publication_date: 1979-03-06
Assignee: Centre de Recherche Metallurgiques-Centrum voor Research in de ()
Primary Class(es): 148/272 118/65, 118/69, 118/72, 427/259, 427/300, 427/309, 427/321, 427/329, 427/374.4, 427/433
Other Classes:
US Patent Ref:

222655	Dec, 1879	Breeding	427/436.
2118758	May, 1938	Crapo	148/153.
3010844	Nov, 1961	Klein et al.	427/321.
3383250	May, 1968	Pierson et al.	148/6.

Other Refs:
Primary Examiner: Kendall, Ralph S.
Assistant Examiner:
Attorney: Holman & Stern