EP 2906740 A1 20150819 - ANODIZING DEVICE AND ANODIZING METHOD FOR TUBULAR BODIES
Title (en)
ANODIZING DEVICE AND ANODIZING METHOD FOR TUBULAR BODIES
Title (de)
ELOXIERVORRICHTUNG UND ELOXIERVERFAHREN FÜR ROHRKÖRPER
Title (fr)
DISPOSITIF D'ANODISATION ET PROCÉDÉ D'ANODISATION DE CORPS TUBULAIRES
Publication
Application
Priority
- DE 102012109812 A 20121015
- EP 2013071386 W 20131014
Abstract (en)
[origin: WO2014060333A1] The invention relates to an anodizing device for anodizing at least one internal surface element (22) of a metal tubular body (18) having an extension direction (24), comprising: an anodizing tank (10) for accommodating an electrolyte (16), which is in contact with the at least one surface element (22) of the tubular body (18) in at least one operating state, and an internal electrode (26; 28; 30; 32), which is at least partially surrounded by the tubular body (18) in a radial direction substantially perpendicular to the extension direction (24) in the operating state and is provided for connecting to an electric current source (12). According to the invention the anodizing device has a covering unit (38; 40; 42; 44; 46) provided for controlling a spatial distribution of an anodizing current, which covering unit is arranged continuously at least in some sections in the extension direction (24) and between the internal electrode (26; 28; 30; 32) and the at least one internal surface element (22) in the radial direction in the operating state.
IPC 8 full level
C25D 7/04 (2006.01); C25D 11/00 (2006.01); C25D 11/04 (2006.01); C25D 17/00 (2006.01); C25D 17/12 (2006.01)
CPC (source: EP)
C25D 11/005 (2013.01); C25D 17/008 (2013.01); C25D 11/04 (2013.01); C25D 11/26 (2013.01); C25D 17/12 (2013.01)
Citation (search report)
See references of WO 2014060333A1
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)
DE 102012109812 A1 20140417; EP 2906740 A1 20150819; WO 2014060333 A1 20140424
DOCDB simple family (application)
DE 102012109812 A 20121015; EP 13777031 A 20131014; EP 2013071386 W 20131014