Global Patent Index - EP 2728041 A1

EP 2728041 A1 20140507 - Coated aluminum strip and method for manufacturing

Title (en)

Coated aluminum strip and method for manufacturing

Title (de)

Beschichteter Aluminiumstreifen und Verfahren zur Herstellung

Title (fr)

Bande d'aluminium revêtu et procédé de fabrication

Publication

EP 2728041 A1 20140507 (EN)

Application

EP 12190670 A 20121030

Priority

EP 12190670 A 20121030

Abstract (en)

The invention relates to a method for manufacturing a strip made of aluminum or an aluminum alloy as well as to a coated aluminum or aluminum alloy strip, a formed metal part made of said aluminum or aluminum alloy strip as well as to an apparatus for carrying out the inventive method. The object of the present invention to provide a method for manufacturing an aluminum strip or an aluminum alloy strip, which can be formed into a coated products with an improved corrosion resistance with low defective products is solved by a method for manufacturing a strip made of aluminum or an aluminum alloy comprising the steps of: - degreasing and anodizing the surface of the strip by immersing the strip in an acid electrolyte bath and applying AC current, optionally followed by a desmutting step and - applying a passivation layer on the surface of the strip by a no-rinse coil coating process.

IPC 8 full level

C25D 11/02 (2006.01); C23C 28/04 (2006.01); C25D 11/00 (2006.01); C25D 11/24 (2006.01); C25D 7/06 (2006.01); C25D 17/00 (2006.01)

CPC (source: EP RU)

C23C 28/00 (2013.01 - EP); C25D 11/005 (2013.01 - EP); C25D 11/02 (2013.01 - RU); C25D 11/024 (2013.01 - EP); C25D 11/24 (2013.01 - EP); C25D 7/0614 (2013.01 - EP); C25D 17/00 (2013.01 - EP)

Citation (applicant)

DE 4030646 A1 19920402 - EFFEM GMBH [DE]

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2728041 A1 20140507; EP 2728041 B1 20170111; CA 2890114 A1 20140508; CA 2890114 C 20160719; CN 104822865 A 20150805; CN 104822865 B 20170222; DK 2728041 T3 20170320; ES 2619427 T3 20170626; RU 2015120646 A 20161220; RU 2639166 C2 20171220; SA 515360357 B1 20161113; WO 2014067937 A1 20140508; ZA 201502934 B 20170726

DOCDB simple family (application)

EP 12190670 A 20121030; CA 2890114 A 20131029; CN 201380057385 A 20131029; DK 12190670 T 20121030; EP 2013072593 W 20131029; ES 12190670 T 20121030; RU 2015120646 A 20131029; SA 515360357 A 20150429; ZA 201502934 A 20150429