EP 1029111 A1 20000823 - CORROSION PROTECTION FOR GALVANISED AND ALLOY GALVANISED STEEL STRIPS
Title (en)
CORROSION PROTECTION FOR GALVANISED AND ALLOY GALVANISED STEEL STRIPS
Title (de)
KORROSIONSSCHUTZ VON VERZINKTEN UND LEGIERUNGSVERZINKTEN STAHLBÄNDERN
Title (fr)
PROTECTION ANTI-CORROSION DE FEUILLARDS ACIER GALVANISES ET GALVANISES PAR ALLIAGE
Publication
Application
Priority
- DE 19749508 A 19971108
- EP 9806889 W 19981030
Abstract (en)
[origin: DE19749508A1] The invention relates to a method for providing galvanised or alloy galvanised steel strips with corrosion protection, characterised in that the galvanised or alloy galvanised steel strips are brought into contact with an aqueous treatment solution with a pH value of between 1.5 and 3.5, containing 1 to 20 g/l manganese (II) ions and 1 to 150 g/l phosphate ions, and in that the solution is dried without intermediate rinsing. The solution may optionally also contain up to 10 g/l zinc ions, up to 10 g/l nickel ions, up to 20 g/l titanium ions, up to 50 g/l silicon in the form of silicon compounds, up to 30 g/l fluoride ions, up to 150 g/l of one or several polymers or copolymers of polymerisable carboxylic acids chosen from the following: acrylic acid, methacrylic acid, maleic acid and their esters with alcohols with 1 to 6 C-atoms. The invention also relates to metal strips which have been treated in this way.
IPC 1-7
IPC 8 full level
C23C 22/18 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP US)
C23C 22/18 (2013.01 - EP US); C23C 22/182 (2013.01 - EP US); C23C 22/364 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES FI FR GB IT NL SE
DOCDB simple family (publication)
US 6537387 B1 20030325; AT E221144 T1 20020815; AU 1558399 A 19990531; AU 735849 B2 20010719; BR 9813180 A 20000822; CA 2309581 A1 19990520; CA 2309581 C 20070410; DE 19749508 A1 19990512; DE 59804925 D1 20020829; EP 1029111 A1 20000823; EP 1029111 B1 20020724; ES 2180217 T3 20030201; HU P0100106 A2 20010528; HU P0100106 A3 20040628; JP 2001522941 A 20011120; WO 9924638 A1 19990520; ZA 9810120 B 19990510
DOCDB simple family (application)
US 55403800 A 20000706; AT 98959815 T 19981030; AU 1558399 A 19981030; BR 9813180 A 19981030; CA 2309581 A 19981030; DE 19749508 A 19971108; DE 59804925 T 19981030; EP 9806889 W 19981030; EP 98959815 A 19981030; ES 98959815 T 19981030; HU P0100106 A 19981030; JP 2000519627 A 19981030; ZA 9810120 A 19981105