EP 0260374 B1 19931118 - Process for producing a multilayer-coated strip having excellent corrosion resistance and weldability and useful for containers.
Title (en)
Process for producing a multilayer-coated strip having excellent corrosion resistance and weldability and useful for containers.
Title (de)
Verfahren zur Herstellung eines mehrfach beschichteten Stahlbandes mit ausgezeichneter Korrosionsbeständigkeit und Schweissbarkeit sowie verwendbar für Container.
Title (fr)
Procédé pour la fabrication d'une feuille d'acier à revêtements multiples ayant une excellente résistance à la corrosion, soudable et utilisable pour les containers.
Publication
Application
Priority
JP 22052186 A 19860918
Abstract (en)
[origin: EP0260374A2] A multilayer-coated steel strip having an excellent corrosion resistance and weldability and useful for cans and containers is produced by a process in which a steel strip substrate is plated with nickel a nickel-based alloy to form nickel based coating layers each having an average amount of 2 to 10 mg/m<2>, provided with a number of convex and concave portions thereof, portions of which layers having a coating thickness of 0.001 mu m or more have a total area corresponding to 10 to 90% of the entire area of the surfaces of the substrate; the nickel based plated substrate is coated with tin to form tin coating layers on the nickel-based coating layers, each of which tin coating layers has an average amount of 200 to 2000 mg/m<2>; the resultant precursory coated steel strip is heated at a temperature equal to or higher than the melting point of tin to convert the nickel-based coating layers and the tin coating layers to base coating layers consisting essentially of an Fe-Ni-Sn-based alloy and having a number of convex and concave portions thereof, and intermediate coating layers formed on the base coating layers, consisting essentially of tin and having a number of convex and concave protions thereof; and then an electrolytic chromate treatment is applied onto the intermediate tin coating layers to form surface coating layers consisting of electrolysed chromate.
IPC 1-7
IPC 8 full level
C25D 5/26 (2006.01); C25D 5/10 (2006.01); C25D 5/12 (2006.01); C25D 5/16 (2006.01); C25D 5/50 (2006.01); C25D 11/38 (2006.01)
CPC (source: EP US)
C25D 5/12 (2013.01 - EP US); C25D 5/50 (2013.01 - EP); C25D 5/605 (2020.08 - EP US); C25D 11/38 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT LU NL
DOCDB simple family (publication)
EP 0260374 A2 19880323; EP 0260374 A3 19890906; EP 0260374 B1 19931118; AU 573122 B2 19880526; AU 7071287 A 19880324; CA 1331962 C 19940913; DE 3788178 D1 19931223; DE 3788178 T2 19940310; JP H0214438 B2 19900409; JP S6376896 A 19880407
DOCDB simple family (application)
EP 87104231 A 19870323; AU 7071287 A 19870327; CA 532926 A 19870325; DE 3788178 T 19870323; JP 22052186 A 19860918